Trees

Ornamentals: Trees

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Subject	Scientific Name	Images
alligator juniper	Juniperus deppeana	1
American beech	Fagus grandifolia	1
American elm	Ulmus americana	2
American holly	Ilex opaca	1
Amur corktree	Phellodendron amurense	2
Amur maple	Acer ginnala	4
anthracnose	Colletotrichum spp.	1
aphids		1
apple scab	Venturia inaequalis	6
apple serviceberry	Amelanchier x grandiflora	1
Arizona walnut	Juglans major	1
Armillaria root rot	Armillaria tabescens	2
armored scale	Aonidiella taxus	1
ash	Fraxinus spp.	1
ash yellows phytoplasma	Candidatus Phytoplasma fraxini	1
Asian longhorned beetle	Anoplophora glabripennis	9
aspen/poplar	Populus spp.	3
Austrian pine	Pinus nigra	6
bagworm	Thyridopteryx ephemeraeformis	1
balsam twig aphid	Mindarus abietinus	3
balsam woolly adelgid	Adelges piceae	2
bananas	Musa spp.	1
basswood thrips	Neohydatothrips tiliae	1
beech bark beetle	Taphrorychus bicolor	2
beech splendor beetle	Agrilus viridis	1
birch leafminer	Fenusa pusilla	3
bird-cherry ermine	Yponomeuta evonymella	1
black locust	Robinia pseudoacacia	2
black oak	Quercus velutina	3
black pineleaf scale	Dynaspidiotus californica	3
black walnut	Juglans nigra	1
blackjack oak	Quercus marilandica	2
blue ash	Fraxinus quadrangulata	3
blue spruce	Picea pungens	3
boron deficiency		1
boxelder	Acer negundo	3
boxwood spider mite	Eurytetranychus buxi	2
bristlecone pine	Pinus aristata	2
bronze birch borer	Agrilus anxius	1
Callery pear (Bradford pear)	Pyrus calleryana	3
camellia flower blight	Ciborinia camelliae	3
Canary Island date palm	Phoenix canariensis	1
cedar-apple rust	Gymnosporangium juniperi-virginianae	2
cherry plum	Prunus cerasifera	2
cherrybark oak	Quercus pagoda	1
Chinese crab apple	Malus hupehensis	1
chlorosis (general symptom)		1
citrus longhorned beetle	Anoplophora chinensis	1
cold injury (low temperature)		4
common horse chestnut	Aesculus hippocastanum	1
cone worms	Dioryctria spp.	2
copper deficiency		3
corkscrew willow	Salix matsudana	3
Corticium fungus	Corticium salmonicolor	2
cottonwood leaf beetle	Chrysomela scripta	2
cottony cushion scale	Icerya purchasi	2
cottony maple scale	Pulvinaria innumerabilis	3
crabapple	Malus x scheideckeri	1
crabapple and apple	Malus spp.	31
crapemyrtle	Lagerstroemia indica	4
crown gall	Rhizobium radiobacter	11
Cytospora cankers	Cytospora spp.	2
dawn redwood	Metasequoia glyptostroboides	1
dog-day cicada	Tibicen spp.	2
Douglas-fir	Pseudotsuga menziesii	3
downy hawthorn	Crataegus mollis	1
dusty-wings		1
eastern redbud	Cercis canadensis	1
eastern white pine	Pinus strobus	1
Ectomycorrhizae	Thelephora terrestris	1
edema		1
elm sawfly	Cimbex americana	3
emerald ash borer	Agrilus planipennis	21
Engelmann spruce	Picea engelmannii	3
English hawthorn	Crataegus monogyna	3
English oak	Quercus robur	1
European beech	Fagus sylvatica	2
European bird cherry	Prunus padus	3
European elm leafcurl aphid	Eriosoma ulmi	1
European elm scale	Eriococcus spuria	3
European elm scale	Gossyparia spuria	2
European fruit lecanium	Parthenolecanium corni	2
European hornbeam	Carpinus betulus	1
European mountain-ash	Sorbus aucuparia	3
European white birch	Betula pendula	3
eye spot	Phyllosticta minima	1
fall color		4
flat mite	Brevipalpus spp.	1
flatheaded appletree borer	Chrysobothris femorata	1
flatid planthopper		3
Florida wax scale	Ceroplastes floridensis	1
flowering dogwood	Cornus florida	5
forest tent caterpillar	Malacosoma disstria	1
Freeman maple	Acer x freemanii	1
Fusarium root rot and wilt	Fusarium oxysporum	2
Gambel oak	Quercus gambelii	3
Ganoderma root rots	Ganoderma spp.	7
giant coccids	Xylococculus quercus	1
giant sequoia	Sequoiadendron giganteum	3
goldenrain tree	Koelreuteria paniculata	1
green alga	Cephaleuros virescens	3
green ash	Fraxinus pennsylvanica	2
gypsy moth	Lymantria dispar	1
honeylocust	Gleditsia triacanthos	3
hurricane		1
imported willow leaf beetle	Plagiodera versicolora	1
iron deficiency		4
ISA EGS		7
ISA Publications		1
Japanese apple rust	Gymnosporangium yamadae	1
Japanese beetle	Popillia japonica	1
Japanese hornbeam	Carpinus japonica	1
Japanese maple	Acer palmatum	2
jelly palm	Butia capitata	1
Kentucky coffeetree	Gymnocladus dioicus	1
Kousa dogwood	Cornus kousa	2
Kousa dogwood variety	Cornus kousa var. chinensis	1
Kutilakesa fungus	Kutilakesa madreeya	2
Kutilakesa fungus	Kutilakesa pironii	2
larch casebearer	Coleophora laricella	2
leaf spot	Ceratobasidium stevensii	1
leaf spot	Sonderhenia eucalypticola	7
leaf spot	Tubakia dryina	1
Leptosphaeria leaf blight	Leptosphaeria dracaenae	4
lichen	Strigula smaragdula	1
lightning		1
limber pine	Pinus flexilis	3
linden	Tilia spp.	2
locust leafminer	Odontota dorsalis	1
Loebner's magnolia	Magnolia x loebneri	1
London planetree	Platanus hybrida	3
long-horned beetles	Xylotrechus spp.	3
magnesium deficiency		10
magnolia	Magnolia spp.	1
maple bladdergall mite	Vasates quadripedes	1
mealybug destroyer	Cryptolaemus montrouzieri	2
metalic wood-boring beetle	Agrilus carpini	2
metallic woodboring beetles	Acmaeodera spp.	1
mimosa wilt	Fusarium oxysporum f.sp. perniciosum	9
mite	Phytoptus avellanae	1
Monochaetia fungi	Monochaetia spp.	2
mountain laurel	Kalmia latifolia	1
mountain silverbell	Halesia tetraptera	1
Mycosphaerella fungi	Mycosphaerella spp.	4
Nectria canker	Nectria spp.	5
northern catalpa	Catalpa speciosa	5
northern red oak	Quercus rubra	3
Norway spruce	Picea abies	4
nutrient deficiency		8
oak galls		1
oak lecanium	Parthenolecanium quercifex	2
oak ribbedcase maker	Bucculatrix albertiella	3
oak treehopper	Platycotis vittata	1
oneseed juniper	Juniperus monosperma	1
Ophiosphaerella fungi	Ophiosphaerella spp.	2
oriental beetle	Anomala orientalis	1
oystershell scale	Lepidosaphes ulmi	2
palm moth	Paysandisia archon	1
papaya mealybug	Paracoccus marginatus	8
paperbark maple	Acer griseum	1
pear sawfly	Caliroa cerasi	1
Phaeosphaeria fungi	Phaeosphaeria spp.	6
pheromone traps		1
Phoma blights	Phoma spp.	2
Phomopsis blight	Phomopsis juniperivora	1
Phomopsis cankers and twig blights	Phomopsis spp.	1
Phyllosticta leaf spots	Phyllosticta spp.	4
Phytophthora basal canker	Phytophthora palmivora	3
Phytophthora blight	Phytophthora nicotianae	8
Phytophthora kernoviae	Phytophthora kernoviae	6
pin oak	Quercus palustris	1
pine bark adelgid	Pineus strobi	2
pine needle scale	Chionaspis pinifoliae	2
pine wilt nematode	Bursaphelenchus xylophilus	5
pit scale	Pollinia pollini	1
plant diagnostics		1
Ploioderma needle cast of pine	Ploioderma lethale	1
plumeria	Plumeria spp.	2
polypore fungus	Polyporus arcularius	1
ponderosa pine	Pinus ponderosa var. scopulorum	3
powdery mildew	Microsphaera penicillata	3
quaking aspen	Populus tremuloides	2
quince rust	Gymnosporangium clavipes	1
red oak borer	Enaphalodes rufulus	1
red pine cone borer	Eucosma monitorana	2
redheaded ash borer	Neoclytus acuminatus	1
Rhabdocline needlecast	Rhabdocline weirii	1
Rhizosphaera needle cast	Rhizosphaera spp.	3
ribbed pine borer	Rhagium inquisitor	1
river birch	Betula nigra	1
Rocky Mountain juniper	Juniperus scopulorum	3
roundheaded apple tree borer	Saperda candida	1
royal palm bug	Xylastodoris luteolus	3
royal star magnolia	Magnolia stellata	1
rust	Tranzschelia discolor	5
Saratoga spittlebug	Aphrophora saratogensis	3
Sargent's apple	Malus sargentii	1
Septoria leaf spot	Septoria betulae	4
Septoria leaf spot	Septoria platanifolia	4
shagbark hickory	Carya ovata	1
sheoak	Casuarina spp.	1
shingle oak	Quercus imbricaria	2
Siberian elm	Ulmus pumila	3
silver maple	Acer saccharinum	3
smaller European elm bark beetle	Scolytus multistriatus	1
spot anthracnose	Elsinoe corni	14
spruce bud scale	Physokermes piceae	2
spruce gall adelgid	Pineus similis	1
spruce needle rust	Chrysomyxa weirii	1
Stigmina leaf spots	Stigmina spp.	2
striped maple	Acer pensylvanicum	1
subalpine fir	Abies lasiocarpa	3
sunscald		2
sweetbay	Magnolia virginiana	1
sweetgum	Liquidambar styraciflua	1
tanbark borer	Phymatodes testaceus	1
Tarsonemid mite	Tarsonemus spp.	1
trident maple	Acer buergerianum	1
two needle pinyon	Pinus edulis	3
two-wing silverbell	Halesia diptera	2
Utah juniper	Juniperus osteosperma	1
Verticillium wilts	Verticillium spp.	5
Washington fan palm	Washingtonia robusta	1
Washington hawthorn	Crataegus phaenopyrum	1
water birch	Betula occidentalis	2
wax scale	Parthenolecanium pruinosum	5
weeping fig	Ficus benjamina	1
weeping willow	Salix babylonica	1
western gall rust	Endocronartium harknessii	4
western pine beetle	Dendroctonus brevicomis	1
white fir	Abies concolor	3
white mulberry	Morus alba	2
white peach scale	Pseudaulacaspis pentagona	2
white pine weevil	Pissodes strobi	4
white poplar	Populus alba	2
whitemarked tussock moth	Orgyia leucostigma	1
willow oak	Quercus phellos	1
wool sower gall maker	Callirhytis seminator	1
wych elm	Ulmus glabra	1
yellow anisetree	Illicium parviflorum	2

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Ornamentals: Trees