Number of Images by Subject


Subject Number of Images
common bean - Phaseolus vulgaris L. 614
gypsy moth - Lymantria dispar (Linnaeus) 600
southern pine beetle - Dendroctonus frontalis Zimmermann, 1868 539
herbicides 519
garden onion - Allium cepa L. 480
fire 444
European spruce bark beetle - Ips typographus (Linnaeus) 358
cogongrass - Imperata cylindrica (L.) Beauv. 358
mountain pine beetle - Dendroctonus ponderosae Hopkins 314
pesticides 290
rose - Rosa spp. L. 283
corn - Zea mays L. 241
Asian long-horned beetle - Anoplophora glabripennis (Motschulsky) 225
crabapple and apple - Malus spp. P. Mill. 224
longleaf pine - Pinus palustris P. Mill. 219
kudzu - Pueraria montana var. lobata (Willd.) Maesen & S. Almeida 218
emerald ash borer - Agrilus planipennis Fairmaire 218
frost and winter injury (general) 214
mule deer - Odocoileus hemionus Rafinesque 211
honey bee - Apis mellifera Linnaeus 210
rhododendrons and azaleas - Rhododendron spp. L. 207
potato - Solanum tuberosum L. 194
citrus canker - Xanthomonas axonopodis pv. citri (Hasse) Vauterin et al. 1995 193
Japanese knotweed - Polygonum cuspidatum Siebold & Zucc. 190
tree-of-heaven - Ailanthus altissima (P. Mill.) Swingle 188
bighorn sheep - Ovis canadensis Shaw 187
sudden oak death - Phytophthora ramorum S. Werres, A.W.A.M. de Cock 187
annosum root disease - Heterobasidion annosum (Fr) Bref. 179
white pine blister rust - Cronartium ribicola J. C. Fisch. 176
oak wilt - Ceratocystis fagacearum (T. W. Bretz) J. Hunt 172
melaleuca - Melaleuca quinquenervia (Cav.) Blake 171
common wheat - Triticum aestivum L. 170
Canada thistle - Cirsium arvense (L.) Scop. 169
Rhizoctonia damping-off, blight and rot - Rhizoctonia solani J.G. Kühn 167
garlic mustard - Alliaria petiolata (Bieb.) Cavara & Grande 161
prickly pear moth - Cactoblastis cactorum (Berg) 159
chestnut blight or canker - Cryphonectria parasitica (Murrill) M.E. Barr 156
forest tent caterpillar - Malacosoma disstria Hübner 155
tropical soda apple - Solanum viarum Dunal 154
daylily rust - Puccinia hemerocallidis Thüm. 152
eastern tent caterpillar - Malacosoma americanum (Fabricius) 149
black locust - Robinia pseudoacacia L. 144
oriental bittersweet - Celastrus orbiculatus Thunb. 144
Tomato Spotted Wilt Virus - Tospovirus TSWV 143
bollworm - Helicoverpa zea (Boddie) 142
crown gall - Agrobacterium tumefaciens (E. F. Smith & Town.) 141
Diplodia blight - Sphaeropsis sapinea (Fr.) Dyko & B. Sutton 139
European beech - Fagus sylvatica L. 139
Phytophthora blight - Phytophthora nicotianae Breda de Haan 138
people 138
spruce beetle - Dendroctonus rufipennis (Kirby) 137
Sclerotinia rot - Sclerotinia sclerotiorum (Lib.) de Bary 133
Armillaria root rots - Armillaria spp. (Fr.:Fr) Staude 133
musk thistle - Carduus nutans L. 131
johnsongrass - Sorghum halepense (L.) Pers. 131
six-spined engraver beetle - Ips sexdentatus (Boerner) 129
common hop - Humulus lupulus L. 129
nun moth - Lymantria monacha (Linnaeus) 128
chemicals 127
late blight - Phytophthora infestans (Mont.) de Bary 125
purple loosestrife - Lythrum salicaria L. 124
Iris Yellow Spot Virus - Tospovirus IYSV 124
2007 Georgia wildfires 123
spotted knapweed - Centaurea stoebe ssp. micranthos (Gugler) Hayek 122
Chinese tallowtree - Triadica sebifera (L.) Small 121
hail 121
field bindweed - Convolvulus arvensis L. 120
quaking aspen - Populus tremuloides Michx. 120
English ivy - Hedera helix L. 119
bull thistle - Cirsium vulgare (Savi) Ten. 119
leafy spurge - Euphorbia esula L. 118
waterhyacinth - Eichhornia crassipes (Mart.) Solms 118
decay 117
hemlock woolly adelgid - Adelges tsugae Annand 117
southern blight - Sclerotium rolfsii Sacc. 116
elk - Cervus canadensis Linnaeus 116
boxelder - Acer negundo L. 115
rust - Uromyces appendiculatus F. Strauss 115
Chinese wisteria - Wisteria sinensis (Sims) DC. 115
common pine shoot beetle - Tomicus piniperda (Linnaeus) 114
fire blight - Erwinia amylovora (Burrill) Winslow . 114
American bison - Bison bison Linnaeus 113
wind 111
gray mold - Botrytis cinerea Pers.:Fr 111
douglas-fir tussock moth - Orgyia pseudotsugata (McDunnough) 110
chinaberry - Melia azedarach L. 108
monarch butterfly - Danaus plexippus (Linnaeus) 106
American alligator - Alligator mississippiensis Daudin 106
common pokeweed - Phytolacca americana L. 106
common mullein - Verbascum thapsus L. 105
old world climbing fern - Lygodium microphyllum (Cav.) R. Br. 105
Japanese honeysuckle - Lonicera japonica Thunb. 105
cattle - Bos spp. Linnaeus, 1758 104
Fusarium wilts, blights, rots and damping-off - Fusarium spp. Link 103
cedar-apple rust - Gymnosporangium juniperi-virginianae Schwein. 103
giant hogweed - Heracleum mantegazzianum Sommier & Levier 103
snow and ice damage (snow load) 103
shelterwood 100
fall webworm - Hyphantria cunea (Drury) 100
Cercospora fungi - Cercospora spp. Fresen. 99
early blight - Alternaria solani Sorauer 99
Laysan albatross - Phoebastria immutabilis (Rothschild, 1893) 98
planting 98
oxeye daisy - Leucanthemum vulgare Lam. 98
karner blue - Plebejus melissa (W.H. Edwards) 97
browntail moth - Euproctis chrysorrhoea (Linnaeus) 97
Compartmentalization Of Decay In Trees (CODIT) 97
English oak - Quercus robur L. 96
western spruce budworm - Choristoneura occidentalis Freeman 95
pronghorn antelope - Antilocapra americana (Ord, 1815) 95
Brazilian peppertree - Schinus terebinthifolius Raddi 95
anthracnose - Colletotrichum spp. Corda 95
mountains 95
Douglas-fir beetle - Dendroctonus pseudotsugae Hopkins 94
Japanese climbing fern - Lygodium japonicum (Thunb. ex Murr.) Sw. 94
six-toothed spruce bark beetle - Pityogenes chalcographus (Linnaeus) 94
Hosta Virus X - Potexvirus HVX 93
giant reed - Arundo donax L. 92
gulf fritillary - Agraulis vanillae (Linnaeus) 92
fusiform rust - Cronartium quercuum f.sp. fusiforme (Hedgc. & N. Hunt) Burdsall & G. Snow 92
white pine weevil - Pissodes strobi (Peck) 92
cheatgrass - Bromus tectorum L. 92
western tent caterpillar - Malacosoma californicum (Packard) 91
eastern tiger swallowtail - Papilio glaucus Linnaeus 91
multiflora rose - Rosa multiflora Thunb. ex Murr. 91
lightning 90
Dutch elm disease - Ophiostoma ulmi (Buisman) Nannf. 90
crack willow - Salix fragilis L. 90
apple - Malus domestica Borkh. 89
Norway maple - Acer platanoides L. 89
pricklypear/cholla - Opuntia spp. P. Mill. 89
alfalfa - Medicago sativa L. 88
speed line 88
pruning 88
aspen/poplar - Populus spp. L. 87
littleleaf disease - Phytophthora cinnamomi Rands 87
Africanized honey bee - Apis mellifera scutellata Lepeletier 87
building 87
Australian-pine - Casuarina equisetifolia L. 86
Burmese python - Python molurus ssp. bivittatus Kuhl, 1820 85
reed canarygrass - Phalaris arundinacea L. 84
princesstree - Paulownia tomentosa (Thunb.) Sieb. & Zucc. ex Steud. 83
Norway spruce - Picea abies (L.) Karst. 83
Nepalese browntop - Microstegium vimineum (Trin.) A. Camus 82
cucumber - Cucumis sativus L. 82
irrigation 81
dodder - Cuscuta spp. L. 81
fall armyworm - Spodoptera frugiperda (J.E. Smith) 81
mimosa - Albizia julibrissin Durazz. 81
ponderosa pine - Pinus ponderosa P.& C. Lawson 81
prickly lettuce - Lactuca serriola L. 81
Sirex woodwasp - Sirex noctilio Fabricius 80
bitter rot - Colletotrichum gloeosporioides (Penz.) Penz. & Sacc. 80
American cockroach - Periplaneta americana (Linnaeus) 80
Russian-olive - Elaeagnus angustifolia L. 80
velvetleaf - Abutilon theophrasti Medik 80
eastern poison-ivy - Toxicodendron radicans (L.)Kuntze 79
root rot/damping off - Rhizoctonia spp. DC. 79
Pythium diseases - Pythium spp. Pringsh. 78
Japanese beetle - Popillia japonica Newman 78
hoary cress - Cardaria draba (L.) Desv 78
peach - Prunus persica (L.) Batsch 78
bagworm - Thyridopteryx ephemeraeformis (Haworth) 78
yellow starthistle - Centaurea solstitialis L. 77
cultivation 76
periodical cicada - Magicicada septendecim (Linnaeus) 76
Chinese privet - Ligustrum sinense Lour. 76
white mulberry - Morus alba L. 76
clearcut 76
Ips engraver beetles - Ips spp. De Geer, 1775 76
hydrilla - Hydrilla verticillata (L. f.) Royle 75
pesticide safety 75
Asian citrus psyllid - Diaphorina citri Kuwayama 75
cotton - Gossypium hirsutum L. 75
red oak borer - Enaphalodes rufulus (Haldeman) 75
autumn-olive - Elaeagnus umbellata Thunb. 74
Phomopsis cankers and twig blights - Phomopsis spp. (Sacc.) Bubák 73
European hornbeam - Carpinus betulus L. 73
African Elephant - Loxodonta africana Blumenbach 73
common blight of bean - Xanthomonas campestris pv. phaseoli 73
southern green stink bug - Nezara viridula (Linnaeus) 72
waterlettuce - Pistia stratiotes L. 72
Phytophthora root and crown rots - Phytophthora spp. De Bary 72
soil & water 72
poison-hemlock - Conium maculatum L. 71
lady beetle 71
redheaded pine sawfly - Neodiprion lecontei (Fitch) 71
red sesbania - Sesbania punicea (Cav.) Benth. 71
balsam woolly adelgid - Adelges piceae (Ratzeburg) 71
larch casebearer - Coleophora laricella (Hubner) 71
beach vitex - Vitex rotundifolia L. f. 70
pink hibiscus mealybug - Maconellicoccus hirsutus (Green) 69
cone worms - Dioryctria spp. Zeller 69
yellow nutsedge - Cyperus esculentus L. 69
alligatorweed - Alternanthera philoxeroides (Mart.) Griseb. 68
red maple - Acer rubrum L. 68
sunflower - Helianthus spp. L. 68
yellow toadflax - Linaria vulgaris P. Mill. 68
Texas leafcutting ant - Atta texana (Buckley) 67
Xanthomonas leaf blight of onion - Xanthomonas axonopodis pv. allii (Dowson) 67
dandelion - Taraxacum officinale G.H. Weber ex Wiggers 66
aphids 66
Sirococcus blight of conifers - Sirococcus conigenus (DC.) P. Cannon & Minter 66
red imported fire ant - Solenopsis invicta Buren 66
charcoal rot - Macrophomina phaseolina (Tassi) Goidanich 65
thinning 65
jimsonweed - Datura stramonium L. 64
yellow sweetclover - Melilotus officinalis (L.) Lam. 64
black turpentine beetle - Dendroctonus terebrans (Olivier) 64
leaf spot - Passalora sequoiae (Ellis & Everh.) Y.L. Guo & W.H. Hsieh 64
rivers and streams 64
rice - Oryza sativa L. 63
Scleroderris canker of pine and spruce - Gremmeniella abietina (Lagerb.) M. Morelet 63
cooley spruce gall adelgid - Adelges cooleyi (Gillette) 63
European larch - Larix decidua P. Mill. 63
northern red oak - Quercus rubra L. 63
Mahaleb cherry - Prunus mahaleb L. 63
butterfly milkweed - Asclepias tuberosa L. 63
European alder - Alnus glutinosa (L.) Gaertn. 62
brown spot needle blight of pine - Mycosphaerella dearnessii M.E. Barr 62
European buckthorn - Rhamnus cathartica L. 62
sooty tern - Sterna fuscata Linnaeus, 1766 62
dwarf mistletoes - Arceuthobium spp. Bieb. 62
Nectria canker - Nectria spp. (Fr.) Fr. 62
giant salvinia - Salvinia molesta D. S. Mitchell 62
Colorado potato beetle - Leptinotarsa decemlineata (Say) 61
perennial lupine - Lupinus perennis L. 61
bittersweet nightshade - Solanum dulcamara L. 61
Benghal dayflower - Commelina benghalensis L. 61
Callery pear (Bradford pear) - Pyrus calleryana Dcne. 61
luna moth - Actias luna (Linnaeus) 61
bed bug - Cimex lectularius Linnaeus 61
sulfur shelf - Laetiporus sulphureus (Bull.) Bondartsev & Singer 61
common St. Johnswort - Hypericum perforatum L. 61
walnut caterpillar - Datana integerrima Grote & Robinson 60
mechanical 60
black cherry - Prunus serotina Ehrh. 60
Jerusalem artichoke - Helianthus tuberosus L. 60
puncturevine - Tribulus terrestris L. 60
common reed - Phragmites australis (Cav.) Trin. ex Steud. 60
powdery mildew - Podosphaera macularis (Wallr.) U. Braun & S. Takam. 60
gray molds - Botrytis spp. P. Mich. ex. Pers. 60
black spot (leaf, stem, or pod spots) - Alternaria spp. Nees 60
yellow potato cyst nematode - Globodera rostochiensis (Wollenweber) Behrens 60
gorse - Ulex europaeus L. 60
cold injury (low termerature) 60
engraver beetle - Ips acuminatus (Gyllenhal) 59
rosy gypsy moth - Lymantria mathura Moore 59
periodical cicada - Magicicada spp. Davis, 1925 59
Russian-thistle - Salsola tragus L. 59
beech bark disease - Nectria coccinea (Pers.) Fr. 59
trumpetcreeper - Campsis radicans (L.) Seem. ex Bureau 59
cabbage white - Pieris rapae (Linnaeus) 58
coltsfoot - Tussilago farfara L. 58
Scots pine - Pinus sylvestris L. 58
common yarrow - Achillea millefolium L. 58
long-horned beetle - Monochamus sartor (Fabricius) 58
Dyer's woad - Isatis tinctoria L. 58
Mexican fireweed - Bassia scoparia (L.) A.J. Scott 58
lion - Panthera leo Linnaeus 58
diffuse knapweed - Centaurea diffusa Lam. 58
Cytospora cankers - Cytospora spp. Ehrenb. 58
black henbane - Hyoscyamus niger L. 58
loblolly pine - Pinus taeda L. 58
red sorrel - Rumex acetosella L. 58
yellow poplar weevil - Odontopus calceatus (Say) 57
honeylocust - Gleditsia triacanthos L. 57
ornamental jewelweed - Impatiens glandulifera Royle 57
chocolate vine - Akebia quinata (Houtt.) Dcne. 57
pine processionary moth - Thaumetopoea pityocampa (Denis & Schiffermuller) 57
nursery operations 57
bermudagrass - Cynodon dactylon (L.) Pers 57
European pine shoot moth - Rhyacionia buoliana (Denis & Schiffermuller) 57
bacterial spot - Pseudomonas cichorii (Swingle 1925) Stapp 1928 57
bacterial brown spot - Pseudomonas syringae pv. syringae van Hall 1902 57
black widow spider - Latrodectus mactans (Fabricius) 57
bladder campion - Silene latifolia ssp. alba (Mill.) Greuter & Burdet 57
common chickweed - Stellaria media ssp. pallida (Dumort.) Asch. & Graebn. 56
artist's conk - Ganoderma applanatum (Pers.) Pat. 56
quackgrass - Elymus repens (L.) Gould 56
pitch canker - Fusarium subglutinans (Wollenweb. & Reinking) P. E. Nelson, T. A. Toussoun, & Marasas 56
Dalmatian toadflax - Linaria dalmatica (L.) P. Mill. 56
flowering ash - Fraxinus ornus L. 56
white-lined sphinx - Hyles lineata (Fabricius) 56
green ash - Fraxinus pennsylvanica Marsh. 56
Eutypella canker - Eutypella parasitica R. W. Davidson & Lorentz 56
bark beetles 55
smaller European elm bark beetle - Scolytus multistriatus (Marsham) 55
hurricane 55
cottonwood leaf beetle - Chrysomela scripta Fabricius 55
steelblue jewel beetle - Melanophila cyanea (Fabricius) 55
common cocklebur - Xanthium strumarium L. 55
houndstongue - Cynoglossum officinale L. 55
carrot - Daucus carota ssp. sativus (Hoffm.) Arcang. 55
shepherd's-purse - Capsella bursa-pastoris (L.) Medik. 55
soybean - Glycine max (L.) Merr. 55
spruce budworm - Choristoneura fumiferana (Clemens) 55
potato/tomato psyllid - Paratrioza cockerelli (Sulc) 55
Chinese silvergrass - Miscanthus sinensis Anderss. 55
cane fruit (blackberry, raspberry) - Rubus spp. L. 55
perilla mint - Perilla frutescens (L.) Britton 54
western gall rust - Endocronartium harknessii Hirats. 54
convergent lady beetle - Hippodamia convergens Guerin-Meneville 54
common beet - Beta vulgaris L. 54
tall fescue - Schedonorus phoenix (Scop.) Holub 54
tobacco budworm - Heliothis virescens (Fabricius) 54
unpaved roads and trails 54
large larch bark beetle - Ips cembrae (Heer) 54
northern corn leaf blight - Exserohilum turcicum (Pass.) K.J. Leonard & Suggs 54
eastern dwarf mistletoe - Arceuthobium pusillum Peck 54
moose - Alces alces Linnaeus 54
nutrient deficiency 54
eastern white pine - Pinus strobus L. 54
hemp dogbane - Apocynum cannabinum L. 54
American beaver - Castor canadensis Frazier 54
human caused injury 53
skunk-vine - Paederia foetida L. 53
sweet cherry - Prunus avium (L.) L. 53
black rot - Guignardia bidwellii (Ellis) Viala & Ravaz 53
small broomrape - Orobanche minor Smith 52
bacterial soft rot - Pectobacterium carotovorum ssp. carotovorum (Jones 1901) Hauben et al. 1999 emend. Gardan et al. 2003 52
green alder - Alnus viridis (Vill.) Lam. & DC. 52
algal leaf spot - Cephaleuros virescens Kunze 52
leaf rolling weevil - Homoeolabus analis (Iliger) 52
field pennycress - Thlaspi arvense L. 52
cycad aulacaspis scale - Aulacaspis yasumatsui Takagi, 1977 52
crownvetch - Securigera varia (L.) Lassen 52
field horsetail - Equisetum arvense L 52
coco yam, wild taro - Colocasia esculenta (L.) Schott 52
baldcypress - Taxodium distichum (L.) L.C. Rich. 52
Eurasian watermilfoil - Myriophyllum spicatum Linnaeus 52
perennial sowthistle - Sonchus arvensis L. 52
citrus greening - Candidatus Liberibacter asiaticus 52
multicolored Asian lady beetle - Harmonia axyridis (Pallas) 52
European pine sawfly - Neodiprion sertifer (Geoffroy) 52
shoebutton ardisia - Ardisia elliptica Thunb 52
Scotch thistle - Onopordum acanthium L. 51
polyphemus moth - Antheraea polyphemus (Cramer) 51
comandra blister rust - Cronartium comandrae Peck 51
pinyon blister rust - Cronartium occidentale Hedgc., Bethel, & N. Hunt 51
brackenfern - Pteridium aquilinum (L.) Kuhn 51
fragrant waterlily - Nymphaea odorata Ait. 51
largeleaf lantana - Lantana camara L. 51
grasshoppers 51
American dwarf mistletoe - Arceuthobium americanum Nutt. ex Engelm. 51
Armillaria root rot - Armillaria tabescens (Scop.) Emel 51
polar bear - Ursus maritimus Phipps 51
lesser pine shoot beetle - Tomicus minor (Hartig) 51
root-knot nematode - Meloidogyne mayaguensis Rammah & Hirschmann, 1988 51
catalpa sphinx - Ceratomia catalpae (Boisduval) 50
common mallow - Malva neglecta Wallr. 50
white poplar - Populus alba L. 50
boll weevil - Anthonomus grandis Boheman 50
chicory - Cichorium intybus L. 50
tobacco splitworm - Phthorimaea operculella (Zeller) 50
Mexican fruit fly - Anastrepha ludens (Loew) 49
European oak leaf roller - Tortrix viridana Linnaeus 49
Japanese dodder - Cuscuta japonica Choisy 49
horse chestnut leafminer - Cameraria ohridella Deshka & Dimic, 1986 49
air pollutants 49
bumble bees - Bombus spp. Latreille, 1802 49
drought 49
Eastern Arc Mountains 49
European corn borer - Ostrinia nubilalis (Hubner) 49
sunscald 49
Tatarian honeysuckle - Lonicera tatarica L. 48
Mediterranean fruit fly, Medfly - Ceratitis capitata (Wiedemann) 48
porcupine - Erethizon dorsatum Linnaeus 48
wheel bug - Arilus cristatus (Linnaeus) 48
apple scab - Venturia inaequalis (Cooke) G. Wint. 48
servicetree - Sorbus domestica L. 48
white-tailed deer - Odocoileus virginianus Zimmermann 48
common burdock - Arctium minus Bernh. 48
purple nutsedge - Cyperus rotundus L. 48
sicklepod - Senna obtusifolia (L.) Irwin & Barneby 48
winter moth - Operophtera brumata (Linnaeus) 48
Botryosphaeria canker - Botryosphaeria dothidea (Moug.:Fr.) Ces. & De Not. 48
redroot pigweed - Amaranthus retroflexus L. 47
bouncingbet - Saponaria officinalis L. 47
Amur honeysuckle - Lonicera maackii (Rupr.) Herder 47
horseweed - Conyza canadensis (L.) Cronq. 47
Queen Anne's lace, wild carrot - Daucus carota L. 47
perennial pepperweed - Lepidium latifolium L. 47
crimson fountaingrass - Pennisetum setaceum (Forsk.) Chiov. 47
large brown trunk beetle - Hylobius abietis (Linnaeus) 47
tungoil tree - Vernicia fordii (Hemsl.) Airy-Shaw 47
common chokecherry - Prunus virginiana L. 47
fertilization 47
black spot - Diplocarpon rosae F.A. Wolf 47
Cylindrocladium blight and root rot - Cylindrocladium scoparium Morgan 47
blue mold - Peronospora tabacina D.B. Adam 47
staghorn sumac - Rhus typhina L. 47
tansy ragwort - Senecio jacobaea L. 47
common periwinkle - Vinca minor L. 47
English walnut - Juglans regia L. 47
wild parsnip - Pastinaca sativa L. 47
red turpentine beetle - Dendroctonus valens LeConte 47
root lifting, soil heaving, and windthrow 47
Tobacco Etch Virus - Potyvirus TEV 46
selection 46
common teasel - Dipsacus fullonum L. 46
black knot - Apiosporina morbosa (Schwein.:Fr.) Arx 46
Engelmann spruce - Picea engelmannii Parry ex Engelm. 46
ground ivy - Glechoma hederacea L. 46
plains pricklypear - Opuntia polyacantha Haw. 46
butterflies, moths or skippers 46
Kutilakesa fungus - Kutilakesa pironii Alfieri 46
broadleaf plantain - Plantago major L. 46
Asian gypsy moth - Lymantria dispar dispar (Linnaeus) 46
turkey tail - Trametes versicolor (L.) C.G. Lloyd 46
white fir - Abies concolor (Gord. & Glend.) Lindl. ex Hildebr. 46
ginkgo - Ginkgo biloba L. 46
grizzly bear - Ursus arctos Linnaeus 46
Bean Common Mosaic Virus - Potyvirus BCMV 45
common horse chestnut - Aesculus hippocastanum L. 45
red-belted fungus - Fomitopsis pinicola (Sw.) P. Karst. 45
dogwood anthracnose - Discula destructiva Redlin 45
Douglas-fir - Pseudotsuga menziesii (Mirbel) Franco 45
stink bugs 45
Fusarium wilt - Fusarium oxysporum E.F. Sm. & Swingle 45
imbedded objects 45
sour orange scab - Elsinoe fawcettii Bitanc. & Jenkins 45
orange hawkweed - Hieracium aurantiacum L. 45
white heartwood rot - Phellinus tremulae (Bondartsev) Bondartsev & Borisov in Bondartsev 45
Schweinitzii root and butt disease - Phaeolus schweinitzii (Fr.) Pat. 45
sweetpotato - Ipomoea batatas (L.) Lam. 45
red pine - Pinus resinosa Soland. 45
pine engraver - Ips pini (Say) 45
processing/manufacturing 45
eastern redbud - Cercis canadensis Linnaeus 44
flowering dogwood - Cornus florida L. 44
smallflower morningglory - Jacquemontia tamnifolia (L.) Griseb. 44
myrtle spurge - Euphorbia myrsinites L 44
boxelder bug - Boisea trivittata (Say) 44
common tansy - Tanacetum vulgare L. 44
fir engraver - Scolytus ventralis LeConte 44
Russian knapweed - Acroptilon repens (L.) DC. 44
smooth sumac - Rhus glabra L. 44
Virginia-creeper - Parthenocissus quinquefolia (L.) Planch. 44
paper wasp - Polistes dominula (Christ) 44
European white birch - Betula pendula Roth 44
Tanzania 44
western salsify - Tragopogon dubius Scop. 44
pine wilt nematode - Bursaphelenchus xylophilus (Steiner & Buhrer) Nickle 44
red-humped caterpillar moth - Schizura concinna (J.E. Smith) 44
winged yam - Dioscorea alata L. 44
harvesting 44
Catawba rosebay - Rhododendron catawbiense Michx. 44
German cockroach - Blattella germanica (Linnaeus) 44
showy rattlebox - Crotalaria spectabilis Roth 43
tamarisk - Tamarix spp. L. 43
stinging nettle - Urtica dioica L. 43
yellow-poplar - Liriodendron tulipifera L. 43
Fusarium damping-off - Fusarium solani (Mart.) Sacc. 43
ivyleaf morningglory - Ipomoea hederacea Jacq. 43
mistletoe - Loranthus europaeus L. 43
Southern bacterial wilt - Ralstonia solanacearum (Smith) Yabuuchi et al. 43
common purslane - Portulaca oleracea L. 43
eastern fivespined ips - Ips grandicollis (Eichhoff) 43
glossy buckthorn - Frangula alnus P. Mill. 43
bacterial soft rot - Pectobacterium chrysanthemi (Burkholder, McFadden & Dimock 1953) Brenner, Steigerwalt, Miklos & Fanning 1973 43
big periwinkle - Vinca major L. 43
pecan weevil - Curculio caryae (Horn) 43
watermoss - Salvinia spp. Séguier 42
hedge bindweed - Calystegia sepium (L.) R. Br 42
black swallowtail - Papilio polyxenes Fabricius 42
common milkweed - Asclepias syriaca L. 42
white willow - Salix alba L. 42
checkered beetle - Thanasimus dubius (Fabricius) 42
pecan - Carya illinoinensis (Wangenh.) K. Koch 42
pale tussock moth - Calliteara pudibunda (Linnaeus) 42
sericea lespedeza - Lespedeza cuneata (Dum.-Cours.) G. Don 42
striped ambrosia beetle - Trypodendron lineatum (Olivier) 42
common sunflower - Helianthus annuus L. 42
red elderberry - Sambucus racemosa L. 42
American sycamore - Platanus occidentalis L. 42
lobate lac scale - Paratachardina pseudolobata Kondo & Gullan 42
iron deficiency 42
disease forecasting 42
paper-mulberry - Broussonetia papyrifera (L.) L'Hér. ex Vent. 42
aster yellows phytoplasma - Phytoplasma 42
mantids 42
orchardgrass - Dactylis glomerata L. 42
sessile oak - Quercus petraea (Mattuschka) Liebl. 41
syrphid or flower flies 41
included bark 41
curly dock - Rumex crispus L. 41
riverine mangrove ecosystem 41
bald eagle - Haliaeetus leucocephalus (Linnaeus, 1766) 41
Phyllosticta leaf spots - Phyllosticta spp. Pers. 41
smooth brome - Bromus inermis Leyss. 41
horsenettle - Solanum carolinense L. 41
western pine beetle - Dendroctonus brevicomis LeConte 41
cutworms, loopers, owlet moths, and underwings 41
Pine-tree lappet - Dendrolimus pini (Linnaeus) 41
tatarian maple - Acer tataricum L. 41
lambsquarters - Chenopodium album L 41
beet armyworm - Spodoptera exigua (Hubner) 41
birdsfoot trefoil - Lotus corniculatus L. 40
old house borer - Hylotrupes bajulus (Linnaeus) 40
pine needle cast - Lophodermium pinastri (Schrad.) Chevall. 40
Cucumber Mosaic Virus - Cucumovirus CMV 40
hickory horned devil - Citheronia regalis (Fabricius) 40
anthracnose - Colletotrichum orbiculare (Berk. & Mont.) Arx 40
black-eyed susan - Rudbeckia hirta L. 40
Mexican bean beetle - Epilachna varivestis Mulsant 40
oak leaf blister - Taphrina caerulescens (Desmaz. & Mont.) Tul. 40
twig girdler - Oncideres cingulata (Say) 40
deadwood and snags 40
bronze birch borer - Agrilus anxius Gory 40
silver lupine - Lupinus argenteus Pursh 40
mimosa wilt - Fusarium oxysporum f.sp. perniciosum (Hepting) Toole 39
lakes and ponds 39
white oak - Quercus alba L. 39
wild four-o'clock - Mirabilis nyctaginea (Michx.) MacM. 39
Chinese yam - Dioscorea oppositifolia L. 39
mourning cloak butterfly - Nymphalis antiopa (Linnaeus) 39
white rot fungus - Stromatinia gladioli (Drayton) Whetzel 39
common elderberry - Sambucus nigra ssp. canadensis (L.) R. Bolli 39
black root rot - Thielaviopsis basicola (Berk. & Broome) Ferraris 39
showy forsythia - Forsythia x intermedia Zabel [suspensa × viridissima] 39
Athel tamarisk - Tamarix aphylla (L.) Karst. 39
small hive beetle - Aethina tumida Murray 39
diamondback moth - Plutella xylostella (Linnaeus) 39
hairy cat'sear - Hypochaeris radicata L. 39
bacterial spot - Xanthomonas vesicatoria (ex Doidge) Vauterin et al. 39
deer 39
redheaded ash borer - Neoclytus acuminatus (Fabricius) 39
pepper - Capsicum spp. L. 39
American elm - Ulmus americana L. 38
silver fir bark beetle - Pityokteines curvidens (Germar) 38
wild-proso millet - Panicum miliaceum L. 38
Armillaria root rot - Armillaria solidipes Peck 38
edible fig - Ficus carica L. 38
small flower touch-me-not - Impatiens parviflora DC. 38
sulfur cinquefoil - Potentilla recta L. 38
spider mites 38
chess-apple - Sorbus aria (L.) Crantz 38
tobacco hornworm - Manduca sexta (Linnaeus) 38
Scotch broom - Cytisus scoparius (L.) Link 38
wine grape - Vitis vinifera L. 38
false codling moth - Thaumatotibia leucotreta (Meyrick) 38
hedge maple - Acer campestre L. 37
Dothistroma needle blight - Mycosphaerella pini Rostr. 37
European white elm - Ulmus laevis Pall. 37
red-footed booby - Sula sula (Linnaeus, 1766) 37
water knotweed - Polygonum amphibium L. 37
shagbark hickory - Carya ovata (P. Mill.) K. Koch 37
tinder fungus - Fomes fomentarius (L.) J.J. Kickx 37
locust borer - Megacyllene robiniae (Forster) 37
octopus tree - Schefflera actinophylla (Endl.) H.A.T. Harms 37
genetic abnormalities 37
climbing hempweed - Mikania scandens (L.) Willd. 37
eastern hemlock - Tsuga canadensis (L.) Carr. 37
release treatments 37
fir bark beetle - Pityophthorus pityographus (Ratzeburg) 37
cecropia moth - Hyalophora cecropia (Linnaeus) 37
swamp milkweed - Asclepias incarnata L. 37
Alpine clematis - Clematis alpina (L.) Mill. 37
downy mildew - Pseudoperonospora cubensis (Berk. & M.A. Curtis) Rostovzev 37
showy draba - Draba spectabilis Greene 37
butterflybush - Buddleja davidii Franch. 37
red morningglory - Ipomoea coccinea L. 37
variable oakleaf caterpillar - Lochmaeus manteo Doubleday 36
pine needle scale - Chionaspis pinifoliae (Fitch) 36
spicebush swallowtail - Papilio troilus Linnaeus 36
common lilac - Syringa vulgaris L. 36
golden bamboo - Phyllostachys aurea Carr. ex A.& C. Rivière 36
buffalobur - Solanum rostratum Dunal 36
baldfaced hornet - Dolichovespula maculata (Linnaeus) 36
American lotus - Nelumbo lutea Willd. 36
broadleaf dock - Rumex obtusifolius L. 36
Sakhalin knotweed - Polygonum sachalinense F. Schmidt ex Maxim. 36
bean anthracnose - Colletotrichum lindemuthianum (Sacc. & Magnus) Lams.-Scrib. 36
great spruce bark beetle - Dendroctonus micans (Kugelann) 36
Canada goldenrod - Solidago canadensis L. 36
creeping buttercup - Ranunculus repens L. 36
Jeffery pine beetle - Dendroctonus jeffreyi Hopkins 36
European silver fir weevil - Pissodes piceae (Illiger) 36
winged burning bush - Euonymus alatus (Thunb.) Sieb. 36
spider mites - Tetranychus spp. Dufour 36
Mediterranean sage - Salvia aethiopis L. 35
peanut - Arachis hypogaea L. 35
storm damage 35
lichen 35
wheat stem rust - Puccinia graminis Pers. 35
western grebe - Aechmophorus occidentalis (Lawrence, 1858) 35
pecan scab - Cladosporium caryigenum (Ellis & Langl.) Gottwald 35
European chestnut - Castanea sativa P. Mill. 35
cotoneaster - Cotoneaster melanocarpus Lodd. et al. 35
orange spruce needleminer - Coleotechnites piceaella (Kearfott) 35
European privet - Ligustrum vulgare L. 35
Kutilakesa fungus - Kutilakesa madreeya Subram. 35
downy oak - Quercus pubescens Willd. 35
skidding 35
English yew - Taxus baccata L. 35
trumpetweed - Eupatorium fistulosum Barratt 35
Hypoxylon cankers - Hypoxylon spp. Bull. 35
European bird cherry - Prunus padus L. 35
hooded pitcherplant - Sarracenia minor Walt. 35
squash bug - Anasa tristis (De Geer) 35
goatsrue - Galega officinalis L. 35
European oak bark beetle - Scolytus intricatus (Ratzeburg) 35
wild garlic - Allium vineale L. 35
absinth wormwood - Artemisia absinthium L. 35
foliar nematodes - Aphelenchoides spp. Fischer, 1894 35
laurel wilt - Raffaelea lauricola Harrington & Fraedrich 35
willow - Salix spp. L. 35
serviceberry - Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer 35
burrowing nematode - Radopholus similis (Cobb, 1893) Thorne, 1949 35
barley - Hordeum vulgare L. 35
turnipweed - Rapistrum rugosum (L.) All. 35
birch bark beetle - Scolytus ratzeburgi Janson 35
yellowflag iris - Iris pseudacorus L. 34
Indianpipe - Monotropa uniflora L. 34
whitemarked tussock moth - Orgyia leucostigma (J.E. Smith) 34
thymeleaf speedwell - Veronica serpyllifolia L. 34
soybean rust - Phakopsora pachyrhizi Syd. & P. Syd. 34
wild oat - Avena fatua L. 34
bacterial leaf scorch - Xylella fastidiosa Wells et al., 1987 34
flooding/high water 34
European mistletoe variety - Viscum album ssp. austriacum (Wiesb.) Vollman 34
checkertree - Sorbus torminalis (L.) Crantz 34
grape - Vitis spp. L. 34
imperial moth - Eacles imperialis (Drury) 34
Nantucket pine tip moth - Rhyacionia frustrana (Scudder) 34
fireweed - Chamerion angustifolium (L.) Holub 34
torpedograss - Panicum repens L. 34
leaf blotch miner moth - Phyllonorycter issikii (Kumata) 34
boll weevil - Anthonomus grandis grandis Boheman 34
green peach aphid - Myzus persicae (Sulzer) 34
red buckeye - Aesculus pavia L. 34
direct seeding 34
Robbins' milkvetch - Astragalus robbinsii (Oakes) A. Gray 34
elephanthead lousewort - Pedicularis groenlandica Retz. 33
varroa mite - Varroa jacobsoni Oudemans 33
bloodtwig dogwood - Cornus sanguinea L. 33
gray alder - Alnus incana (L.) Moench 33
European turkey oak - Quercus cerris L. 33
feral horse - Equus caballus Linnaeus, 1758 33
common ragweed - Ambrosia artemisiifolia L. 33
gopher tortoise - Gopherus polyphemus (Daudin) 33
unknown virus 33
tomato - Lycopersicon esculentum Mill. 33
American beautyberry - Callicarpa americana L. 33
cotoneaster - Cotoneaster integerrimus Medik. 33
medusahead - Taeniatherum caput-medusae (L.) Nevski 33
termites 33
tarnished plant bug - Lygus lineolaris (Palisot) 33
buckhorn plantain - Plantago lanceolata L. 33
halo blight - Pseudomonas syringae pv. phaseolicola (Burkholder) Young et al. 33
sixspined ips - Ips calligraphus (Germar) 33
papaya mealybug - Paracoccus marginatus Williams & Granara de Willink 33
spruce decline 33
black vine weevil - Otiorhynchus sulcatus (Fabricius) 32
sanddune wallflower - Erysimum capitatum (Dougl. ex Hook.) Greene 32
blackthorn - Prunus spinosa L. 32
old world bollworm, cotton bollworm - Helicoverpa armigera (Hübner) 32
eastern arborvitae - Thuja occidentalis L. 32
dog rose - Rosa canina L. 32
scarabs or scarab beetles 32
yellow garden spider - Argiope aurantia Lucas 32
fire ant - Solenopsis geminata (Fabricius) 32
Douglas-fir dwarf mistletoe - Arceuthobium douglasii Englem. 32
dragonflies and damselflies 32
painted lady butterfly - Vanessa cardui (Linnaeus) 32
common comfrey - Symphytum officinale L. 32
vaseygrass - Paspalum urvillei Steud. 32
domestic horse - Equus caballus Linnaeus 32
Austrian pine - Pinus nigra Arnold 32
European shot-hole borer - Xyleborus dispar (Fabricius) 32
slash pine - Pinus elliottii Engelm. 32
oak decline 32
green stink bug - Acrosternum hilare (Say) 32
pandora moth - Coloradia pandora Blake 32
Cynipid gall wasp - Andricus quercustozae (Bosc, 1792) 32
great frigatebird - Fregata minor (J. F. Gmelin, 1789) 32
false tinder polypore - Phellinus igniarius (L.) Quél. 32
witch-hazel - Hamamelis virginiana L. 32
honeysuckle aphid - Hyadaphis tataricae (Aizenberg) 32
root diseases and rots 32
common crupina - Crupina vulgaris Cass. 32
lumber and building materials 32
Japanese barberry - Berberis thunbergii DC. 32
beaked panicgrass - Panicum anceps Michx. 32
cabbage looper - Trichoplusia ni (Hubner) 32
common hackberry - Celtis occidentalis L. 32
eastern ash bark beetle - Hylesinus aculeatus Say 32
whitefringed beetles - Nuapactus spp. Dejean, 1821 31
beech scale - Cryptococcus fagisuga Lindinger 31
European hardwood ambrosia beetle - Trypodendron domesticum (Linnaeus) 31
redosier dogwood - Cornus sericea L. 31
elm leafminer - Kaliofenusa ulmi (Sundevall) 31
Wyoming Indian paintbrush - Castilleja linariifolia Benth. 31
viburnum borer - Synanthedon viburni Engelhardt 31
air-potato - Dioscorea bulbifera L. 31
onion thrips - Thrips tabaci Lindeman 31
Japanese pine sawyer beetle - Monochamus alternatus (Hope) 31
botrytis rot - Botrytis allii Munn 31
whitespotted sawyer - Monochamus scutellatus (Say) 31
coppice 31
trifoliate orange - Poncirus trifoliata (L.) Raf. 31
edema 31
cotoneaster - Cotoneaster nebrodensis (Guss.) K. Koch 31
fanwort - Cabomba caroliniana L 31
fly agaric - Amanita muscaria muscaria (L. ex Fr.) Persoon ex W. J. Hooker 31
broomsedge bluestem - Andropogon virginicus L. 31
flatheaded or metallic wood borer 31
striped cucumber beetle - Acalymma vittatum (Fabricius) 31
pavement ant - Tetramorium caespitum (Linnaeus) 31
cutleaf teasel - Dipsacus laciniatus L. 31
Graphiola leaf spot - Graphiola phoenicis (Moug.) Poit. 31
lodgepole pine - Pinus contorta Dougl. ex Loud. 31
Phytophthora blight - Phytophthora capsici Leonian 31
leatherleaf mahonia - Mahonia bealei (Fortune) Carr. 30
blue vervain - Verbena hastata L. 30
Palmer amaranth - Amaranthus palmeri S. Wats. 30
oystershell scale - Lepidosaphes ulmi (Linnaeus) 30
butternut canker - Sirococcus clavigignenti-juglandacearum N. B. Nair, Kostichka & Kuntz 30
meadow hawkweed - Hieracium caespitosum Dumort. 30
seed tree 30
fleas 30
Drummond's rockcress - Arabis drummondii Gray 30
seedcorn maggot - Delia platura (Meigen) 30
Amur peppervine - Ampelopsis brevipedunculata (Maxim.) Trautv. 30
subalpine fleabane - Erigeron peregrinus (Banks ex Pursh) Greene 30
Stag beetle - Lucanus cervus Linnaeus 30
blue spruce - Picea pungens Engelm. 30
arrowleaf balsamroot - Balsamorhiza sagittata (Pursh) Nutt. 30
sevenspotted lady beetle - Coccinella septempunctata (Linnaeus) 30
ozone 30
brown noddy - Anous stolidus (Linnaeus, 1758) 30
pear - Pyrus spp. L. 30
green foxtail - Setaria viridis (L.) Beauv. 30
Tobacco Mosaic Virus - Tobamovirus TMV 30
Graphiola leaf spot - Graphiola spp. Poit. 30
Lymexylid beetle - Hylecoetus dermestoides Linnaeus, 1761 30
seedlings 30
pinyon dwarf mistletoe - Arceuthobium divaricatum Englem. 30
moth mullein - Verbascum blattaria L. 30
bristly locust - Robinia hispida L. 30
musk thistle head weevil - Rhinocyllus conicus (Frölich) 30
barnyardgrass - Echinochloa crus-galli (L.) Beauv 30
nimblewill - Muhlenbergia schreberi J.F. Gmel. 30
tall morningglory - Ipomoea purpurea (L.) Roth 30
large aspen tortrix - Choristoneura conflictana (Walker) 29
green anole - Anolis carolinensis Voigt 29
root-knot nematode - Meloidogyne spp. 29
wild chervil - Anthriscus sylvestris (L.) Hoffmann 29
sacred bamboo - Nandina domestica Thunb. 29
honeyvine swallowwort - Cynanchum laeve (Michx.) Pers. 29
banded elm bark beetle - Scolytus schevyrewi Semenov 29
rat, vole, mouse Illiger, 1815 29
brown stink bug - Euschistus servus (Say) 29
catchweed bedstraw - Galium aparine L 29
European aspen - Populus tremula L. 29
blackseed plantain - Plantago rugelii Dcne. 29
healall - Prunella vulgaris L. 29
henbit - Lamium amplexicaule L. 29
asparagus - Asparagus officinalis L. 29
Armillaria root rot - Armillaria mellea (Vahl:Fr.) P. Kumm. 29
black walnut - Juglans nigra L. 29
rush skeletonweed - Chondrilla juncea L. 29
Hypoxylon canker of oak - Biscogniauxia atropunctata atropunctata (Schwein.) Pouzar 29
paper birch - Betula papyrifera Marsh. 29
southern armyworm - Spodoptera eridania (Stoll) 29
dwarf elderberry - Sambucus ebulus L. 29
green tree frog - Hyla cinerea (Schneider, 1799) 29
Brazilian egeria - Egeria densa Planch. 29
red heart of pine - Phellinus pini (Thore) Fr. 29
Rydberg's penstemon - Penstemon rydbergii A. Nels. 29
elm phloem necrosis phytoplasma - Phytoplasma 29
wood decay - Schizophyllum commune (L.) Fr. 29
loosestrife leaf beetle - Galerucella calmariensis Linnaeus 29
indigobush - Amorpha fruticosa L. 29
laboratory 29
adelgid - Sacchiphantes viridis (Ratzeburg, 1843) 29
oak flea beetle - Altica quercetorum Foudras 29
western aster - Symphyotrichum ascendens (Lindl.) Nesom 29
pales weevil - Hylobius pales (Herbst) 29
weevil - Curculio glandium Marsham, 1802 29
dollar spot - Sclerotinia homoeocarpa F.T. Benn 29
Siberian elm - Ulmus pumila L. 29
birch leafminer - Fenusa pusilla (Lepeletier) 29
European ash - Fraxinus excelsior L. 29
jack pine - Pinus banksiana Lamb. 29
viceroy - Limenitis archippus (Cramer) 29
red horsechestnut - Aesculus x carnea Hayne. [pavia x hippocastanum] 28
tornado 28
saddleback caterpillar - Acharia stimulea (Clemens) 28
black dot spurge flea beetle - Aphthona nigriscutis Foudras 28
gummy stem blight (vine decline) - Didymella bryoniae (Fuckel) Rehm 28
English hawthorn - Crataegus monogyna Jacq. 28
gall midge - Dryomia circinnans Giraud 28
pine needle rusts - Coleosporium spp. Lev 28
oak anthracnose - Apiognomonia errabunda (Roberge ex Desm.) Höhn. 28
waterfalls 28
wild cucumber - Echinocystis lobata (Michx.) Torr. & Gray 28
wirestem muhly - Muhlenbergia frondosa (Poir.) Fern. 28
brittleleaf naiad - Najas minor All. 28
tiger beardtongue - Penstemon mensarum Pennell 28
Tomato Yellow Leaf Curl Virus - Begomovirus TYLCV 28
tobacco flea beetle - Epitrix hirtipennis (Melsheimer) 28
Fusarium wilt - Fusarium oxysporum f.sp. phaseoli J.B. Kendr. & W.C. Snyder 28
bacterial necrosis of giant cactus - Erwinia carnegieana Standring 28
British yellowhead - Inula britannica L. 28
turkeyberry - Solanum torvum Sw. 28
long-horned beetles 28
ectomycorrhizae - Pisolithus tinctorius (Pers.) Cok. & Couch 28
sorghum - Sorghum bicolor (L.) Moench 28
spotted spurge - Chamaesyce maculata (L.) Small 28
carpenter ants - Camponotus spp. Mayr, 1861 28
buckwheat tree - Cliftonia monophylla (Lam.) Britt. ex Sarg. 28
oak splendour beetle - Agrilus biguttatus (Fabricius) 28
osage-orange - Maclura pomifera (Raf.) Schneid. 28
annual sowthistle - Sonchus oleraceus L. 28
jointed goatgrass - Aegilops cylindrica Host 28
stripe rust - Puccinia striiformis Westend. 28
daylily - Hemerocallis spp. L. 28
large elm beetle - Scolytus scolytus (Fabricius) 28
blanketflower - Gaillardia aristata Pursh 28
fragrant sumac - Rhus aromatica Ait. 28
ash - Fraxinus spp. L. 28
Big Cypress National Preserve 28
erythrina gall wasp - Quadrastichus erythrinae Kim 28
goldenrod - Solidago spp. L. 28
dwarf honeysuckle - Lonicera xylosteum L. 28
Ganoderma root and butt rot - Ganoderma lucidum (Curtis) P. Karst. 28
giant ragweed - Ambrosia trifida L. 28
pepper weevil - Anthonomus eugenii Cano 28
poor architecture 28
African violet - Saintpaulia teitensis B.L.Burtt 27
devilwood - Osmanthus americanus (L.) Benth. & Hook. f. ex Gray 27
pin oak - Quercus palustris Muenchh. 27
golden-silk spider - Nephila clavipes (Linnaeus) 27
nodding locoweed - Oxytropis deflexa (Pallas) DC. 27
sassafras - Sassafras albidum (Nutt.) Nees 27
eastern pine gall rust - Cronartium quercuum (Berk.) Miyabe ex Shirai 27
common buckeye - Junonia coenia Hubner 27
yellow pitcherplant - Sarracenia flava L. 27
European cranberrybush - Viburnum opulus L. 27
turkey oak - Quercus laevis Walt. 27
Helminthosporium leaf spot - Helminthosporium spp. Link & Fries 27
fall cankerworm - Alsophila pometaria (Harris) 27
locust digitate leaf miner - Parectopa robiniella Clemens 27
witchweed - Striga spp. Lour. 27
hawkweeds - Hieracium spp. L. 27
locust leafminer - Odontota dorsalis (Thunberg) 27
false chinch bug - Nysius raphanus Howard 27
eastern redcedar - Juniperus virginiana L. 27
bottomland hardwoods 27
bigroot morningglory - Ipomoea pandurata (L.) G.F.W. Mey. 27
osprey - Pandion haliaetus (Linnaeus, 1758) 27
Leptographium root disease - Leptographium procerum (W.B. Kendr.) M.J. Wingf 27
Canada goose - Branta canadensis (Linnaeus, 1758) 27
shrubby lespedeza - Lespedeza bicolor Turcz. 27
black stain root disease - Ophiostoma wageneri (Goheen & F.W. Cobb) T.C. Harr. 27
serviceberry - Amelanchier arborea Michx. f. 27
goat willow - Salix caprea L. 27
blessed milkthistle - Silybum marianum (L.) Gaertn. 27
northern bark beetle - Ips duplicatus (Sahlberg) 27
European mantid - Mantis religiosa (Linnaeus 1758) 27
clinker polypore - Inonotus obliquus (Pers.) Pilát 27
poplar borer - Saperda calcarata Say 27
timber milkvetch - Astragalus miser Dougl. 27
viburnum leaf beetle - Pyrrhalta viburni Paykull 27
Whipple's penstemon - Penstemon whippleanus Gray 27
parrotfeather - Myriophyllum aquaticum (Vell.) Verdc. 27
witchgrass - Panicum capillare L. 27
curlyleaf pondweed - Potamogeton crispus L. 27
pink lady's-slipper - Cypripedium acaule Ait. 27
black-footed albatross - Phoebastria nigripes (Audubon, 1839) 26
tall buttercup - Ranunculus acris L. 26
introduced pine sawfly - Diprion similis (Hartig) 26
wetland nightshade - Solanum tampicense Dunal 26
elm leaf beetle - Xanthogaleruca luteola (Müller, 1766) 26
big sagebrush - Artemisia tridentata Nutt 26
bark beetle - Hylurgops palliatus (Gyllenhal) 26
branched broomrape - Orobanche ramosa L. 26
sunsets 26
formosan subterranean termite - Coptotermes formosanus (Shiraki) 26
cotton lace bug - Corythucha gossypii (Fabricius) 26
small southern pine engraver - Ips avulsus (Eichhoff) 26
ants - Formica spp. Linnaeus, 1758 26
Himalaya blackberry - Rubus armeniacus Focke 26
mugwort - Artemisia vulgaris L. 26
variegated cutworm - Peridroma saucia (Hubner) 26
hispidus canker - Inonotus hispidus (Bolton) P. Karst. 26
harlequin bug - Murgantia histrionica (Hahn) 26
Ichneumonid wasps 26
cabbage - Brassica oleracea var. oleracea L. 26
tent caterpillar - Eriogaster lanestris (Linnaeus) 26
halogeton - Halogeton glomeratus (Bieb.) C.A. Mey. 26
cicadas 26
bigleaf lupine - Lupinus polyphyllus Lindl. 26
sweetpotato hornworm - Agrius cingulata (Fabricius) 26
cypress aphid - Cinara cupressivora Watson & Vogtlin 26
diamondleaf saxifrage - Saxifraga rhomboidea Greene 26
bur oak - Quercus macrocarpa Michx. 26
dawn redwood - Metasequoia glyptostroboides Hu & W. C. Cheng 26
canola - Brassica napus var. napus L. 26
limber pine dwarf mistletoe - Arceuthobium cyanocarpum (A. Nels. ex Rydb.) A. Nels. 26
swallowtail butterflies - Papilio spp. Linnaeus 1758 26
smokebush - Buddleja madagascariensis Lam. 26
spittlebugs or froghoppers 26
eight-toothed spruce bark beetle - Ips amitinus (Eichhoff, 1871) 26
black rot - Botryosphaeria obtusa (Schwein.) Shoemaker 26
cottony cushion scale - Icerya purchasi Maskell 26
alfalfa weevil - Hypera postica (Gyllenhal) 26
Kobus magnolia - Magnolia kobus DC. 26
purple deadnettle - Lamium purpureum L. 26
purple blotch - Alternaria porri (Ellis) Cif. 26
giraffe - Giraffa camelopardalis Linnaeus 26
coral ardisia - Ardisia crenata Sims 26
puffball - Lycoperdon pyriforme (Schaeff.) Pers. 26
leaffooted bug - Leptoglossus phyllopus (Linnaeus) 26
goldenhaired bark beetle - Hylurgus ligniperda (Fabricius) 25
Rhizosphaera needle cast - Rhizosphaera kalkhoffii Bubak 25
common cattail - Typha latifolia L. 25
pine bark adelgid - Pineus strobi (Hartig) 25
long-horned beetle - Rosalia alpina (Linnaeus) 25
sweetgum - Liquidambar styraciflua L. 25
maypop passionflower - Passiflora incarnata L. 25
squirrel - Sciurus spp. Linnaeus, 1758 25
apple flea beetle - Altica foliaceae LeConte 25
flixweed - Descurainia sophia (L.) Webb ex Prantl 25
juniper mistletoe - Phoradendron juniperinum Engelm. ex A. Gray 25
western yellowjacket - Vespula pensylvanica (Saussure) 25
citrus long-horned beetle - Anoplophora chinensis (Forster) 25
small ballmoss - Tillandsia recurvata (L.) L. 25
woolly apple aphid - Eriosoma lanigerum (Hausmann) 25
orangestriped oakworm - Anisota senatoria (J.E. Smith) 25
Gambel oak - Quercus gambelii Nutt. 25
fir bark beetle - Pityokteines spinidens (Reitter) 25
American chestnut - Castanea dentata (Marsh.) Borkh. 25
garden symphylan - Scutigerella immaculata (Newport) 25
Russian wheat aphid - Diuraphis noxia (Kurdjumov) 25
chick pea - Cicer arietinum L. 25
geologic feature 25
sap beetle 25
Japanese floweringquince - Chaenomeles japonica (Thunb.) Lindl. ex Spach 25
heat 25
American white pelican - Pelecanus erythrorhynchos J.F. Gmelin, 1789 25
rice weevil - Sitophilus oryzae (Linnaeus) 25
mountain azalea - Rhododendron canescens (Michx.) Sweet 25
corn snake - Elaphe guttata guttata (Linnaeus, 1766) 25
smut - Ustilago maydis (DC.) Corda 25
birch conk - Piptoporus betulinus (Bull.) P. Karst. 25
Verticillium wilts - Verticillium spp. Nees. 25
green lynx spider - Peucetia viridans (Hentz) 25
spruce spider mite - Oligonychus ununguis (Jacobi) 25
white locoweed - Oxytropis sericea Nutt. 25
volcanoes 25
European earwig - Forficula auricularia Linnaeus 25
water speedwell - Veronica anagallis-aquatica L. 25
onionweed - Asphodelus fistulosus Linnaeus 25
granulate ambrosia beetle - Xylosandrus crassiusculus (Motschulsky) 25
tawny daylily - Hemerocallis fulva (L.) L. 25
spruce broom rust - Chrysomyxa arctostaphyli Dietel 25
long-horned beetle - Monochamus galloprovincialis (Olivier) 25
Carolina geranium - Geranium carolinianum L. 25
buttonbush - Cephalanthus occidentalis L. 25
spiny sowthistle - Sonchus asper (L.) Hill 25
click beetle 25
powdery mildew of oak - Microsphaera alphitoides Griffon & Maubl. 25
wavyleaf twinevine - Funastrum crispum (Benth.) Schltr. 25
Spanish moss - Tillandsia usneoides (L.) L. 25
large crabgrass - Digitaria sanguinalis (L.) Scop 25
variable watermilfoil - Myriophyllum heterophyllum Michx. 25
bacterial spot of stone fruits - Xanthomonas arboricola pv. pruni (Smith) Vauterin et al. 25
codling moth - Cydia pomonella (Linnaeus) 25
giant ironweed - Vernonia gigantea gigantea (Walter) Trel. 25
rust - Puccinia helianthi Schwein. 24
musk mallow - Malva moschata L. 24
apple maggot - Rhagoletis pomonella (Wash) 24
weeping lovegrass - Eragrostis curvula (Schrad.) Nees 24
leaf and flower gall - Exobasidium vaccinii Erikss. 24
scale - Neosteingelia texana Morrison, 1927 24
Patterson's milkvetch - Astragalus pattersonii Gray 24
wild carrot - Daucus carota ssp. carota L. 24
woodpeckers 24
American hornbeam - Carpinus caroliniana Walt. 24
red chokeberry - Photinia pyrifolia (Lam.) 24
pine needle cast - Lophodermella cerina (Darker) Darker 24
bacterial spot - Xanthomonas campestris pv. vesicatoria (Doidge) Dye 24
pine white - Neophasia menapia (Felder & Felder) 24
purple pampasgrass - Cortaderia jubata (Lem.) Stapf 24
Sycamore maple - Acer pseudoplatanus L. 24
fir-fireweed rust - Pucciniastrum epilobii G.H. Otth 24
twospotted spider mite - Tetranychus urticae Koch 24
butternut - Juglans cinerea L. 24
Septoria leaf spot and cankers - Septoria spp. Sacc. 24
chrysanthemum white rust - Puccinia horiana P. Hennings 24
brown marmorated stink bug - Halyomorpha halys (Stal) 24
squarrose knapweed - Centaurea virgata Lam. 24
trumpet honeysuckle - Lonicera sempervirens L. 24
blacklegged tick - Ixodes scapularis Say 24
knopper gall - Andricus quercuscalicis (Burgsdorf) 24
canker 24
center rot - Pantoea ananatis (Serrano 1928) Mergaert et al. 1993 24
powdery mildew - Microsphaera penicillata (Wallr.) Lév. 24
azalea caterpillar - Datana major Grote & Robinson 24
Woods' rose - Rosa woodsii Lindl. 24
giant wood wasp - Urocerus gigas gigas (Linnaeus) 24
bronze leaf disease - Apioplagiostoma populi (E.K. Cash & Waterman) M.E. Barr 24
angel tern - Gygis alba (Sparrman, 1786) 24
yellow foxtail - Setaria pumila (Poir.) Roemer & J.A. Schultes 24
carrotwood - Cupaniopsis anacardioides (A. Rich.) Radlk. 24
hairy stereum - Stereum hirsutum (Willd.) Pers. 24
American beech - Fagus grandifolia Ehrhart 24
pineapple mealybug - Dysmicoccus brevipes (Cockerell) 24
swede midge - Contarinia nasturtii (Kieffer) 24
pinyon ips - Ips confusus (LeConte) 24
mile-a-minute weed - Persicaria perfoliata (L.) H. Gross 24
red-cockaded woodpecker - Picoides borealis (Vieillot, 1809) 24
laminated root disease - Phellinus weirii (Murrill) R. L. Gibertson 24
io moth - Automeris io (Fabricius) 24
mottled umber moth - Erannis defoliaria (Clerk) 24
prescribed fire 24
cypressvine morningglory - Ipomoea quamoclit L. 24
Fusarium wilt - Fusarium oxysporum f.sp. lycopersici (Sacc.) W.C. Snyder & H.N. Hans. 24
crazy ant - Paratrechina longicornis (Latreille) 24
waved sphinx - Ceratomia undulosa (Walker) 24
Carnation Latent Virus - Carlavirus CLV 24
witch-hazel - Hamamelis spp. L. 23
tumble mustard - Sisymbrium altissimum L. 23
spittlebug - Aphrophora salicina (De Geer) 23
robber flies 23
sugar pine tortrix - Choristoneura lambertiana (Busck) 23
northern bedstraw - Galium boreale L. 23
yellowdot saxifrage - Saxifraga bronchialis L. 23
Rocky Mountain goldenrod - Solidago multiradiata Ait. 23
fir broom rust - Melampsorella caryophyllacearum (DC.) J. Schröt 23
ash yellows phytoplasma - Phytoplasma 23
timothy - Phleum pratense L. 23
great golden digger wasp - Sphex ichneumoneus (Linnaeus) 23
papaya fruit fly - Toxotrypana curvicauda Gerstaecker 23
paper wasps - Polistes spp. Latreille, 1802 23
brown spot - Alternaria alternata (Fr.) Keissl. 23
safflower - Carthamus tinctorius L. 23
greater flamingo - Phoenicopterus ruber Linnaeus 23
bristlecone pine - Pinus aristata Engelm. 23
common evening-primrose - Oenothera biennis L. 23
spreading dogbane - Apocynum androsaemifolium L. 23
meadow lousewort - Pedicularis crenulata Benth. 23
hibiscus - Hibiscus spp. L. 23
blue-footed booby - Sula nebouxii Milne-Edwards, 1882 23
catnip - Nepeta cataria L. 23
bloodroot - Sanguinaria canadensis L. 23
sandhill crane - Grus canadensis (Linnaeus, 1758) 23
twolined chestnut borer - Agrilus bilineatus (Weber) 23
leafhoppers 23
kermes scales - Kermes spp. Boitard, 1828 23
risk tree 23
mayapple - Podophyllum peltatum L. 23
American burnweed - Erechtites hieraciifolia (L.) Raf. ex DC. 23
fir bark beetle - Cryphalus piceae Ratzeburg 23
Plum Pox Virus - Potyvirus PPV 23
sourwood - Oxydendrum arboreum (L.) DC. 23
castorbean - Ricinus communis L. 23
brown widow spider - Latrodectus geometricus C.L. Koch 23
western sweetvetch - Hedysarum occidentale Greene 23
littleleaf sensitivebriar - Mimosa microphylla Dry. 23
Rocky Mountain beeplant - Cleome serrulata Pursh 23
spiny plumeless thistle - Carduus acanthoides L. 23
sugar maple - Acer saccharum Marshall 23
Road salt or de-icing salt 23
Phoma blights - Phoma spp. Sacc. 23
question mark - Polygonia interrogationis (Fabricius) 23
brown spruce longhorn beetle - Tetropium fuscum (Fabricius) 23
pale agoseris - Agoseris glauca (Pursh) Raf. 23
drainage 23
fall color 23
construction 23
white spruce - Picea glauca (Moench) Voss 23
thorny olive - Elaeagnus pungens Thunb. 23
Hypoxylon canker of aspen - Entoleuca mammata (Wahlenb.) J.D. Rogers & Y.M. Ju 23
alpine leafybract aster - Symphyotrichum foliaceum var. foliaceum (DC.) Nesom 23
poplar-and-willow borer - Cryptorhynchus lapathi (Linnaeus) 23
pine beauty moth - Panolis flammea (Denis & Schiffermüller) 23
small spruce bark beetle - Polygraphus poligraphus (Linnaeus) 23
orange dog swallowtail - Papilio cresphontes Cramer 23
ash borer - Podosesia syringae (Harris) 23
yellow marsh marigold - Caltha palustris L. 23
onions - Allium spp. L. 23
onion rust - Puccinia allii Castagne 23
American black nightshade - Solanum americanum P. Mill. 23
stemless thistle - Cirsium tioganum (Congd.) Petrak 22
Carolina laurelcherry - Prunus caroliniana (P. Mill.) Ait. 22
tall lettuce - Lactuca canadensis L. 22
Cylindrocladium root diseases - Cylindrocladium spp. Morgan 22
carpetweed - Mollugo verticillata L. 22
southern waxmyrtle - Morella cerifera (L.) Small 22
foxtail barley - Hordeum jubatum L. 22
Kentucky coffeetree - Gymnocladus dioicus (L.) K. Koch 22
soft scale - Eulecanium kunoensis Kuwana, 1907 22
bread mold - Rhizopus stolonifer (Ehrenb.) Vuill. 22
white pine aphid - Cinara strobi (Fitch) 22
cottonwood borer - Plectrodera scalator (Fabricius) 22
brownbanded cockroach - Supella longipalpa (Fabricius) 22
willow leaf beetle - Chrysomela vigintipunctata Sc. 22
wood stork - Mycteria americana Linnaeus 22
tamarack - Larix laricina (Du Roi) K. Koch 22
lotus - Nelumbo spp. 22
tomato leaf mold - Mycovellosiella fulva (Cooke) Arx 22
webspinning sawfly - Cephalcia arvensis Panzer 22
eastern Hercules beetle - Dynastes tityus (Linnaeus) 22
cherrybark oak - Quercus pagoda Raf. 22
red mangrove - Rhizophora stylosa Griff. 22
cloudless sulphur - Phoebis sennae (Linnaeus) 22
variegated fritillary - Euptoieta claudia (Cramer) 22
fence 22
common groundsel - Senecio vulgaris L. 22
southern magnolia - Magnolia grandiflora L. 22
pine - Pinus spp. L. 22
Japanese spiraea - Spiraea japonica L. f. 22
Colorado blue columbine - Aquilegia caerulea James 22
galls 22
damesrocket - Hesperis matronalis L. 22
fetterbush lyonia - Lyonia lucida (Lam.) K. Koch 22
Douglas-fir needlecast - Rhabdocline pseudotsugae Syd. 22
Plains zebra - Equus burchellii (Gray, 1824) 22
jack pine budworm - Choristoneura pinus Freeman 22
seep monkeyflower - Mimulus guttatus DC. 22
Amur maple - Acer ginnala Maxim. 22
wayfaringtree - Viburnum lantana L. 22
snowbed draba - Draba crassifolia Graham 22
bacterial tan spot - Curtobacterium flaccumfaciens pv. flaccumfaciens (Hedges) Collins 22
Asiatic dayflower - Commelina communis L. 22
Corynespora blight - Corynespora cassiicola (Berk. & M.A. Curtis) C.T. Wei 22
Indian peafowl - Pavo cristatus Linnaeus, 1758 22
spinach - Spinacia oleracea L. 22
motherwort - Leonurus cardiaca L. 22
golden draba - Draba aurea Vahl ex Hornem 22
larger shothole borer - Scolytus mali (Bechstein) 22
flush cut 22
yellow unicorn-plant - Ibicella lutea (Lindl.) Van Eselt. 22
Cylindrocladium fungus - Cylindrocladium floridanum Sobers & C.P. Seym. 22
bacterial gummosis - Pseudomonas syringae van Hall 1902 22
bacterial spot - Xanthomonas spp. 22
sweetpotato whitefly - Bemisia tabaci (Gennadius) 22
art work 22
goosegrass - Eleusine indica (L.) Gaertn. 22
two-toothed pine beetle - Pityogenes bidentatus (Herbst) 22
European mountain-ash - Sorbus aucuparia L. 22
blackheaded pine sawfly - Neodiprion excitans Rohwer 22
long-horned beetle - Arhopalus rusticus (Linnaeus) 22
salvinia stem borer/waterlettuce moth - Samea multiplicalis (Guenee') 22
sycamore leaf beetle - Neochlamisus platani (Brown) 22
lacewings 22
mistletoes - Phoradendron spp. Nutt. 22
needle palm - Rhapidophyllum hystrix (Pursh) H. Wendl. & Drude ex Drude 22
Leadville milkvetch - Astragalus molybdenus Barneby 22
root problems 21
Senegal tea plant - Gymnocoronis spilanthoides (D.Don) DC. (1838) 21
Rocky Mountain iris - Iris missouriensis Nutt. 21
Siberian larch - Larix sibirica Ledeb. 21
brown rots - Monilinia spp. Bonord. 21
poplar twiggall fly - Hexomyza schineri (Giraud) 21
post planting protection 21
mouse-ear cress - Arabidopsis thaliana (L.) Heynh 21
Confederate wakerobin - Trillium reliquum J.D. Freeman 21
dogfennel - Eupatorium capillifolium (Lam.) Small 21
strawberry leaf spot - Mycosphaerella fragariae (Tul.) Lindau 21
Neonectria canker - Neonectria galligena Bres. 21
beech bark beetle - Taphrorychus bicolor (Herbst) 21
radish - Raphanus sativus L. 21
Geometrid moth 21
broadwinged katydid - Microcentrum rhombifolium (Saussure, 1859) 21
Cornelian cherry dogwood - Cornus mas L. 21
European fir engraver beetle - Pityokteines vorontzovi (Jacobson) 21
katydid 21
cherry scallop shell moth - Rheumaptera prunivorata (Ferguson) 21
ants 21
cornflower - Centaurea cyanus L. 21
great blue lobelia - Lobelia siphilitica L. 21
saucer magnolia - Magnolia x soulangiana Soul.-Bod. [denudata x liliifolia] 21
common elodea - Elodea canadensis Michx 21
smooth bedstraw - Galium mollugo L. 21
stilt bug - Jalysus wickhami Van Duzee 21
largeleaf linden - Tilia platyphyllos Scop. 21
great capricorn beetle - Cerambyx cerdo Linnaeus 21
Rhizopus soft rots - Rhizopus spp. Ehrenb. 21
oak - Quercus spp. L. 21
bark beetle - Platypus cylindrus (Fabricius) 21
brown recluse spider - Loxosceles reclusa Gertsch & Mulaik 21
alpine besseya - Besseya alpina (Gray) Rydb. 21
Rocky Mountain penstemon - Penstemon strictus Benth. 21
cracks or splits 21
poplar hawk-moth - Laothoe populi (Linnaeus, 1758) 21
common filbert - Corylus avellana L. 21
western balsam bark beetle - Dryocoetes confusus Swaine 21
sycamore lace bug - Corythucha ciliata (Say) 21
mycelial neck rot - Botrytis tulipae (Lib.) Lind 21
thick-walled maze polypore - Daedalea quercina (L.) Pers. 21
thistle - Cirsium spp. P. Mill. 21
house cricket - Acheta domesticus (Linnaeus, 1758) 21
evergreen clematis - Clematis vitalba L. 21
black twig borer - Xyleborus ferrugineus (Fabricius) 21
bluet damselflies - Enallagma spp. Charpentier 1840 21
soapberry borer - Agrilus prionurus Chevrolat, 1838 21
dog-day cicada - Tibicen spp. Latreille, 1825 21
Japanese bindweed - Calystegia hederacea Wall. 21
genetic improvement 21
camphortree - Cinnamomum camphora (L.) J. Presl 21
American pondweed - Potamogeton nodosus Poir. 21
croftonweed - Ageratina adenophora (Spreng.) King & H.E. Robins. 21
purple witchweed - Striga hermonthica (Del.) Benth 21
slender cinquefoil - Potentilla gracilis Dougl. ex Hook. 21
limb rust - Peridermium filamentosum Peck 21
pigeon tremex - Tremex columba (Linnaeus) 21
oak processionary moth - Thaumetopoea processionea (Linnaeus) 21
South American rice miner - Hydrellia wirthi Korytkowski 21
Pyralid moth - Acrobasis consociella (Hübner) 21
lichen - Strigula smaragdula Fr. 21
Asian nakedwood - Colubrina asiatica (L.) Brongn. 21
broadleaf arnica - Arnica latifolia Bong. 21
white ash - Fraxinus americana L. 21
aspen leafminer - Phyllocnistis populiella Chambers 21
asparagus beetle - Crioceris asparagi (Linnaeus) 21
Eriophyid mite - Aceria macrorrhyncha (Nal.) 21
box turtle - Terrapene carolina (Linnaeus) 21
log deck 20
subalpine fir - Abies lasiocarpa (Hook.) Nutt. 20
southern corn rootworm - Diabrotica undecimpunctata howardi Barber 20
creeping waterprimrose - Ludwigia peploides (Kunth) Raven 20
Beet Curly Top Virus - Hybrigeminivirus BCTV 20
shothole borer - Scolytus rugulosus (Müller) 20
black willow - Salix nigra Marsh. 20
roundleaf toothcup - Rotala rotundifolia (Buch.-Ham. ex Roxb.) Koehne 20
Pandora sphinx - Eumorpha pandorus (Hübner) 20
Aspergillus fungi - Aspergillus spp. Link 20
silverleaf whitefly - Bemisia argentifolii Bellows & Perring 20
woody debris 20
river birch - Betula nigra L. 20
'ohi'a lehua - Metrosideros polymorpha Gaud. 20
coyote willow - Salix exigua Nutt. 20
aphid - Prociphilus bumeliae (Schrank, 1801) 20
February daphne - Daphne mezereum L. 20
parrot pitcherplant - Sarracenia psittacina Michx. 20
Indianmeal moth - Plodia interpunctella (Hübner) 20
leafminers - Liriomyza spp. Mik 20
live oak - Quercus virginiana P. Mill. 20
southwestern tent caterpillar - Malacosoma incurvum (H. Edwards) 20
silverspotted skipper - Epargyreus clarus (Cramer) 20
brown rot - Monilinia fructicola (G. Wint.) Honey 20
red-tailed tropicbird - Phaethon rubricauda Boddaert, 1783 20
sensitive fern - Onoclea sensibilis L. 20
gray leaf spot - Magnaporthe grisea (T.T. Hebert) M.E. Barr 20
sorbus - Sorbus umbellata (Desf.) Fritsch 20
Cylindrocladium fungus - Cylindrocladium clavatum Hodges & L.C. May 20
fig buttercup - Ranunculus ficaria L. 20
chestnut oak - Quercus prinus L. 20
cypress looper - Iridopsis pergracilis (Hulst) 20
oak tatters 20
West Indian nightshade - Solanum ptycanthum Dunal 20
great coneflower - Rudbeckia maxima Nutt. 20
indian paint fungus - Echinodontium tinctorium (Ellis & Everh.) Ellis & Everh. 20
pea leafminer - Liriomyza huidobrensis (Blanchard) 20
oyster mushroom - Pleurotus ostreatus (Jacq.) Quél. 20
intensive dieback of ash - Chalara fraxinea Kowalski 20
sidewalk tiger beetle - Cicindela punctulata Olivier 20
felling 20
western white honeysuckle - Lonicera albiflora Torr. & A. Gray 20
spirea - Spiraea media Schmidt 20
silver maple - Acer saccharinum L. 20
Florida betony - Stachys floridana Shuttlw. ex Benth. 20
mountain tansymustard - Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn 20
loading 20
North American river otter - Lontra canadensis (Schreber, 1777) 20
deeprooted sedge - Cyperus entrerianus Boeckl. 20
blackheaded ash sawfly - Tethida barda (Say) 20
green June beetle - Cotinis nitidus (Linnaeus) 20
cutleaf daisy - Erigeron compositus Pursh 20
kayaking, canoeing, rafting 20
European rhinoceros beetle - Oryctes nasicornis (Linnaeus) 20
Idriella root rot - Idriella spp. P.E. Nelson & S. Wilh. 20
big chickweed - Cerastium fontanum ssp. vulgare (Hartman) Greuter & Burdet 20
High Plains Virus - Uncharacterised virus HPV 20
Fuller rose beetle - Naupactus cervinus (Boheman) 20
spoonwort - Cochlearia officinalis L. [excluded] 20
dwarf chinkapin oak - Quercus prinoides Willd. 20
spiny amaranth - Amaranthus spinosus L 20
peppervine - Ampelopsis arborea L 20
Tobacco Ringspot Virus - Nepovirus TRSV 20
carpenterworm - Prionoxystus robiniae (Peck) 20
ripping/furrowing/bedding 20
pawpaw - Asimina triloba (L.) Dunal 20
European spindletree - Euonymus europaeus L. 20
macao paper wasp - Polistes olivaceus (DeGeer) 20
chamber bitter - Phyllanthus urinaria L. 20
bladder senna - Colutea arborescens L. 20
rough cinquefoil - Potentilla norvegica L. 19
Ross' avens - Geum rossii (R. Br.) Ser. 19
white vervain - Verbena urticifolia L. 19
wild mustard - Sinapis arvensis L. 19
white heath aster - Symphyotrichum ericoides var. ericoides (L.) G.L. Nesom 19
camelthorn - Alhagi maurorum Medik 19
pig - Sus scrofa Linnaeus 19
powdery mildew - Blumeria graminis (DC.) Speer 19
minute duckweed - Lemna minuta Kunth 19
lettuce - Lactuca sativa L. 19
olive bark beetle - Phloeotribus scarabaeoides (Bernard) 19
Pissodes weevil - Pissodes pini (Linnaeus) 19
beech splendour beetle - Agrilus viridis (Linnaeus) 19
Deptford pink - Dianthus armeria L. 19
pinyon needle scale - Matsucoccus acalyptus Herbert 19
white flannel moth - Norape ovina (Sepp) 19
hunting 19
leaf-footed bug 19
striped maple - Acer pensylvanicum L. 19
puss caterpillar - Megalopyge opercularis J.E. Smith 19
pearl cresent - Phyciodes tharos tharos (Drury) 19
spot anthracnose - Elsinoe corni Jenkins & Bitanc. 19
black spruce beetle - Tetropium castaneum (Linnaeus) 19
leaf beetle 19
lesser larch bark-beetle - Orthotomicus laricis (Fabricius) 19
leopard moth - Zeuzera pyrina (Linnaeus) 19
western corn rootworm - Diabrotica virgifera virgifera LeConte 19
dallisgrass - Paspalum dilatatum Poir. 19
European crabapple - Malus sylvestris P. Mill. 19
hazelnut brown stain 19
cinnamon fern - Osmunda cinnamomea L. 19
hedge mustard - Sisymbrium officinale (L.) Scop. 19
citrus blackfly - Aleurocanthus woglumi Ashby 19
zebra mussel - Dreissena polymorpha (Pallas) 19
urban planting 19
grass root-gall nematode - Subanguina radicicola (Greeff) Paramonov 1967 19
common mouse-ear chickweed - Cerastium fontanum Baumg. 19
red-tailed hawk - Buteo jamaicensis (J.F. Gmelin, 1788) 19
Tomentosus root disease - Onnia tomentosus (Fr.:Fr.) S. Teng 19
Penicillium fungi - Penicillium spp. Link 19
scale picnic beetle - Cybocephalus nipponicus Endrödy-Younga 19
ribbed pine borer - Rhagium inquisitor (Linnaeus) 19
potato psyllid - Russelliana solanicola Tuthill 19
leaf spot - Cercostigmina protearum var. protearum (Cooke) U. Braun & Crous 19
lone star tick - Amblyomma americanum (Linnaeus) 19
precommercial thinning 19
southern catalpa - Catalpa bignonioides Walt. 19
leaf blotch miner moth - Phyllonorycter robiniella (Clemens) 19
Japanese maple - Acer palmatum Thunb. 19
palm thrips - Thrips palmi Karny 19
anthracnose - Colletotrichum graminicola (Ces.) G.W. Wilson 19
assassin bugs - Zelus spp. Fabricus, 1803 19
Elytroderma needle cast of pine - Elytroderma deformans (Weir) Darker 19
Mycosphaerella fungi - Mycosphaerella spp. Johanson 19
Botrytis blight - Botrytis paeoniae Oudem. 19
palm moth - Paysandisia archon (Burmeister) 19
lesser cornstalk borer - Elasmopalpus lignosellus (Zeller) 19
stalactiform blister rust - Cronartium coleosporioides J.C. Arthur 19
giant red Indian paintbrush - Castilleja miniata Dougl. ex Hook. 19
Nuttall's violet - Viola nuttallii Pursh 19
European elm scale - Eriococcus spuria (Modeer) 19
Oconne bells - Shortia galacifolia Torr. & A. Gray 19
Rosellinia fungus - Rosellinia quercina R. Hartig 19
Appalachian mixed hardwoods 19
Morrow's honeysuckle - Lonicera morrowii Gray 19
European red raspberry - Rubus idaeus L. 19
common snapping turtle - Chelydra serpentina (Linnaeus, 1758) 19
foxglove - Digitalis purpurea L. 19
alternateleaf dogwood - Cornus alternifolia L. f. 19
saltcedar - Tamarix ramosissima Ledeb. 19
Aspergillus ear and kernel rot - Aspergillus flavus Link 19
Hawaiian goose - Branta sandvicensis (Vigors, 1834) 19
hophornbeam - Ostrya virginiana (P. Mill.) K. Koch 19
seeds/cones 19
naval stores 19
mountain goldenbanner - Thermopsis montana Nutt. 19
turkey vulture - Cathartes aura (Linnaeus, 1758) 19
willow oak sawfly - Arge quidia Smith 19
giant East African snail - Achatina fulica Bowdich, 1822 19
lily leaf beetle - Lilioceris lilii (Scopoli) 19
spruce coneworm - Dioryctria abietella (Denis & Schiffermüller) 19
salvinia weevil - Cyrtobagous salviniae Calder & Sands 19
cultivated currant - Ribes rubrum L. 19
tussock paspalum - Paspalum quadrifarium Lam. 19
nodding beggarticks - Bidens cernua L 19
grape woodbine - Parthenocissus vitacea (Knerr) Hitchc. 19
rabbit-eye blueberry - Vaccinium virgatum Ait. 18
bean weevil - Acanthoscelides obtectus (Say) 18
red flour beetle - Tribolium castaneum (Herbst) 18
Phomopsis blight - Phomopsis juniperivora G. Hahn 18
black rot fungus - Botryosphaeria stevensii Shoemaker 18
Venice mallow - Hibiscus trionum L. 18
pineapple-weed - Matricaria discoidea DC. 18
leaf worm - Copitarsia spp. Hampson 1906 18
yellow birch - Betula alleghaniensis Britt. 18
American dog tick - Dermacentor variabilis (Say) 18
Kodiak bear - Ursus arctos middendorffi Merriam, 1896 18
downy mildew - Peronospora destructor (Berk.) Casp. ex Berk. 18
Phaeosphaeria fungi - Phaeosphaeria spp. I. Miyake 18
powdery mildew - Sphaerotheca fuliginea (Schlechtend.:Fr.) Pollacci 18
Lophodermium needle casts - Lophodermium spp. Chev. 18
black rot - Ceratocystis fimbriata (Ellis & Halst.) Sacc. 18
land use conversion 18
southern pine sawyer - Monochamus titillator (Fabricius) 18
coasts and oceans 18
coyote - Canis latrans Say, 1823 18
orb weaver - Araneus spp. Simon, 1895 18
chinkapin oak - Quercus muehlenbergii Engelm. 18
island applesnail - Pomacea insularum (d'Orbigny, 1839) 18
leaf blotch - Stagonospora nodorum (E. Müll.) Hedjar. 18
western flower thrips - Frankliniella occidentalis (Pergande) 18
Phytophthora disease of alders - Phytophthora alni Brasier & S.A. Kirk 18
stem and bulb nematode - Ditylenchus dipsaci (Kühn) Filipjev 18
redroot flatsedge - Cyperus erythrorhizos Muhl 18
gouty pitch midge - Cecidomyia piniinopis Osten Sacken 18
snout beetles or weevils 18
marketplace 18
common juniper - Juniperus communis L. 18
Cynipid gall wasp - Andricus caputmedusae (Hartig) 18
white clover - Trifolium repens L. 18
Japanese larch - Larix kaempferi (Lam.) Carr. 18
Arizona walnut - Juglans major (Torr.) A. Heller 18
sycamore anthracnose - Apiognomonia veneta (Sacc. & Speg.) Hohn. 18
eastern spruce gall adelgid - Adelges abietis (Linnaeus) 18
hairy false goldenaster - Heterotheca villosa (Pursh) Shinners 18
eastern subterranean termite - Reticulitermes flavipes (Kollar) 18
splitleaf Indian paintbrush - Castilleja rhexiifolia Rydb. 18
plum curculio - Conotrachelus nenuphar (Herbst) 18
rubber rabbitbrush - Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird 18
hairy white oldfield aster - Symphyotrichum pilosum var. pilosum (Willd.) G.L. Nesom 18
white bryony - Bryonia alba L. 18
transport 18
American basswood - Tilia americana L. 18
woolly beech aphid - Phyllaphis fagi (Linnaeus) 18
curlycup gumweed - Grindelia squarrosa (Pursh) Dunal 18
greenflower pepperweed - Lepidium densiflorum Schrad. 18
tuber flea beetle - Epitrix tuberis Gentner 18
Phytophthora root rot - Phytophthora cactorum (Lebert & Cohn) J.Schröt. 18
robustus conk - Phellinus robustus P. Karst. 18
sawtooth oak - Quercus acutissima Carruthers 18
cotton square borer - Strymon melinus Hübner 18
Ectoedemia liebwerdella - Ectoedemia liebwerdella Zimmermann 18
leaf-footed bugs - Leptoglossus spp. Guerin-Meneville, 1831 18
misc. forestry picture 18
webbing coneworm - Dioryctria disclusa Heinrich 18
banded ash borer - Neoclytus caprea (Say) 18
lifting, grading, & storage 18
Citrus Tristeza Virus - Closterovirus CTV 18
woolly alder aphid - Prociphilus tessellatus (Fitch) 18
boreal sweetvetch - Hedysarum boreale Nutt. 18
common tarweed - Centromadia pungens ssp. pungens (Hook. & Arn.) Greene 18
climbing fetterbush - Pieris phillyreifolia (Hook.) DC. 18
humped bladderwort - Utricularia gibba L. 18
Carolina mosquitofern - Azolla caroliniana Willd. 18
coconut leafroller - Omiodes blackburni (Butle) 18
diagnostic lab sample 18
topping 18
post oak - Quercus