| 'ala'a |
Pouteria sandwicensis |
1 |
| 'ohe mauka |
Tetraplasandra oahuensis |
2 |
| 'ohi'a lehua |
Metrosideros polymorpha |
10 |
| acorn and nut weevils |
Curculio spp. |
4 |
| acorn weevil |
Curculio glandium |
29 |
| adelgid |
Sacchiphantes viridis |
1 |
| African tuliptree |
Spathodea campanulata |
6 |
| ailanthus webworm |
Atteva punctella |
2 |
| alder |
Alnus spp. |
1 |
| alder leaf beetle |
Agelastica alni |
1 |
| ambermarked birch leafminer |
Profenusa thomsoni |
1 |
| American basswood |
Tilia americana |
5 |
| American beech |
Fagus grandifolia |
2 |
| American chestnut |
Castanea dentata |
7 |
| American elm |
Ulmus americana |
8 |
| American holly |
Ilex opaca |
2 |
| American hornbeam |
Carpinus caroliniana |
4 |
| American mountain ash |
Sorbus americana |
3 |
| American smoketree |
Cotinus obovatus |
1 |
| American sycamore |
Platanus occidentalis |
10 |
| Amur maple |
Acer ginnala |
3 |
| Amur maple |
Acer japonicum |
1 |
| aphid |
Eriosoma lanuginosa |
1 |
| aphid |
Lachnus roboris |
1 |
| aphid |
Panaphis juglandis |
1 |
| aphid |
Pemphigus spyrothecae |
10 |
| aphid |
Prociphilus bumeliae |
15 |
| aphid |
Tetraneura ulmi |
13 |
| aphids |
|
1 |
| apple variegated Tortrix |
Archips xylosteana |
2 |
| Armillaria root rots |
Armillaria spp. |
3 |
| artist's conk |
Ganoderma applanatum |
3 |
| ash |
Fraxinus spp. |
1 |
| ash bark beetle |
Hylesinus varius |
4 |
| ash bark beetles |
Hylesinus spp. |
2 |
| ash borer |
Podosesia syringae |
1 |
| ash decline |
|
2 |
| ash yellows phytoplasma |
Candidatus Phytoplasma fraxini |
8 |
| Asian chestnut gall wasp |
Dryocosmus kuriphilus |
4 |
| Asian longhorned beetle |
Anoplophora glabripennis |
30 |
| asimina webworm moth |
Omphalocera munroei |
2 |
| aspen decline |
|
6 |
| aspen petiole gall midge |
Contarinia petioli |
2 |
| aspen roller |
Ancylis laetana |
1 |
| aspen/poplar |
Populus spp. |
3 |
| Australian-pine |
Casuarina equisetifolia |
1 |
| autumn-olive |
Elaeagnus umbellata |
1 |
| bacterial leaf scorch |
Xylella fastidiosa |
19 |
| bacterial wetwood |
Enterobacter nimipressuralis |
1 |
| bagworm |
Thyridopteryx ephemeraeformis |
7 |
| balsam poplar |
Populus balsamifera |
6 |
| banded alder borer |
Rosalia funebris |
1 |
| banded ash borer |
Neoclytus caprea |
1 |
| bark beetle |
Ernoporicus fagi |
1 |
| bark beetle |
Hylesinus fraxini |
2 |
| bark beetle |
Hylesinus wachtli orni |
2 |
| bark beetles |
|
1 |
| basal wound |
|
1 |
| basswood leafminer |
Baliosus nervosa |
4 |
| beech bark beetle |
Taphrorychus bicolor |
3 |
| beech bark disease |
Nectria coccinea |
12 |
| beech blight aphid |
Grylloprociphilus imbricator |
1 |
| beech scale |
Cryptococcus fagisuga |
8 |
| beech splendor beetle |
Agrilus viridis |
2 |
| beech weevil |
Orchestes fagi |
1 |
| beefsteak fungus |
Fistulina hepatica |
3 |
| bigtooth aspen |
Populus grandidentata |
3 |
| birch |
Betula spp. |
1 |
| birch bark beetle |
Scolytus ratzeburgi |
5 |
| birch bell moth |
Epinotia tetraquetrana |
1 |
| birch conk |
Piptoporus betulinus |
4 |
| birch leaf-roller |
Deporaus betulae |
1 |
| birch leaffolder |
Ancylis discigerana |
1 |
| bitternut hickory |
Carya cordiformis |
5 |
| black ash |
Fraxinus nigra |
7 |
| black cherry |
Prunus serotina |
11 |
| black knot |
Apiosporina morbosa |
8 |
| black locust |
Robinia pseudoacacia |
19 |
| black maple |
Acer nigrum |
2 |
| black oak |
Quercus velutina |
4 |
| black stem borer |
Xylosandrus germanus |
1 |
| black twig borer |
Xylosandrus compactus |
2 |
| black walnut |
Juglans nigra |
8 |
| black wattle |
Acacia mearnsii |
6 |
| black willow |
Salix nigra |
3 |
| blackgum |
Nyssa sylvatica |
2 |
| blue ash |
Fraxinus quadrangulata |
1 |
| Botryosphaeria canker |
Botryosphaeria rhodina |
1 |
| Botryosphaeria canker |
Botryosphaeria ribis |
2 |
| bottlebrush buckeye |
Aesculus parviflora |
4 |
| bottomland hardwoods |
|
1 |
| boxelder |
Acer negundo |
7 |
| boxelder bug |
Boisea trivittata |
2 |
| boxelder gall midge |
Contarinia negundinis |
1 |
| bracken chafer |
Phyllopertha horticola |
1 |
| Braconid wasp |
Atanycolus cappaerti |
3 |
| Braconid wasps |
|
1 |
| brassy willow beetle |
Phratora vitellinae |
1 |
| broadleaf aiea |
Nothocestrum latifolium |
3 |
| broadleaf papala |
Charpentiera obovata |
1 |
| bronze birch borer |
Agrilus anxius |
2 |
| bronze poplar borer |
Agrilus liragus |
1 |
| brown mite |
Bryobia rubrioculus |
1 |
| brown oak Tortrix |
Archips crataegana |
1 |
| brown root and collar rot |
Phellinus lamaënsis |
3 |
| brown root rot |
Phellinus noxius |
1 |
| brownheaded ash sawfly |
Tomostethus multicinctus |
1 |
| browntail moth |
Euproctis chrysorrhoea |
55 |
| bruce spanworm |
Operophtera bruceata |
3 |
| buckeye |
Aesculus spp. |
1 |
| buff-tip moth |
Phalera bucephala |
3 |
| bur oak |
Quercus macrocarpa |
15 |
| butterflies, moths or skippers |
Lepidoptera (Order) |
1 |
| butternut |
Juglans cinerea |
9 |
| butternut canker |
Sirococcus clavigignenti-juglandacearum |
1 |
| button mangrove |
Conocarpus erectus |
3 |
| buttonbush |
Cephalanthus occidentalis |
1 |
| California black oak |
Quercus kelloggii |
2 |
| California white oak |
Quercus lobata |
1 |
| Callery pear (Bradford pear) |
Pyrus calleryana |
3 |
| camellia |
Camellia japonica |
1 |
| camphortree |
Cinnamomum camphora |
1 |
| canker |
|
2 |
| Carolina laurelcherry |
Prunus caroliniana |
1 |
| Carolina silverbell |
Halesia carolina |
1 |
| carpenterworm |
Prionoxystus robiniae |
6 |
| casebearer moths |
Coleophora spp. |
6 |
| catalpa sphinx |
Ceratomia catalpae |
1 |
| cedar-apple rust |
Gymnosporangium juniperi-virginianae |
5 |
| chanterelle |
Cantharellus cibarius |
1 |
| cherry birch |
Betula lenta |
1 |
| cherry scallop shell moth |
Rheumaptera prunivorata |
9 |
| cherrybark oak |
Quercus pagoda |
2 |
| chestnut blight or canker |
Cryphonectria parasitica |
2 |
| chestnut oak |
Quercus prinus |
1 |
| Chilean fire bush |
Embothrium coccineum |
2 |
| chinaberry |
Melia azedarach |
4 |
| Chinese elm |
Ulmus parvifolia |
2 |
| Chinese parasoltree |
Firmiana simplex |
1 |
| Chinese pistache |
Pistacia chinensis |
1 |
| Chinese privet |
Ligustrum sinense |
1 |
| chinkapin oak |
Quercus muehlenbergii |
8 |
| cicadas |
|
1 |
| clearwing borer |
Carmenta mimuli |
3 |
| clinker polypore |
Inonotus obliquus |
2 |
| coast live oak |
Quercus agrifolia |
4 |
| coastal sandalwood |
Santalum ellipticum |
1 |
| coastal spicebush swallowtail |
Papilio troilus ilioneus |
1 |
| cock's head bell |
Zeiraphera isertana |
1 |
| common chokecherry |
Prunus virginiana |
9 |
| common cockchafer |
Melolontha melolontha |
2 |
| common elderberry |
Sambucus nigra ssp. canadensis |
1 |
| common filbert |
Corylus avellana |
1 |
| common greenshield lichen |
Flavoparmelia caperata |
1 |
| common hackberry |
Celtis occidentalis |
8 |
| common horse chestnut |
Aesculus hippocastanum |
8 |
| common sawflies |
Periclista spp. |
1 |
| common sawfly |
|
1 |
| common sawfly |
Periclista lineolata |
6 |
| common sawfly |
Pontania viminalis |
5 |
| common sawfly |
Pristiphora laricis |
1 |
| common sawfly |
Profenusa pygmaea |
1 |
| Compton's oak |
Quercus x comptoniae |
1 |
| cork oak |
Quercus suber |
3 |
| cotton leafworm, tobacco cutworm |
Spodoptera litura |
1 |
| cottony cushion scale |
Icerya purchasi |
9 |
| cottony maple scale |
Pulvinaria innumerabilis |
1 |
| coyote willow |
Salix exigua |
5 |
| crabapple and apple |
Malus spp. |
1 |
| crown coral mushroom |
Clavicorona pyxidata |
5 |
| crown rust |
Puccinia coronata |
1 |
| Cynipid gall wasp |
Andricus albipes |
1 |
| Cynipid gall wasp |
Andricus caputmedusae |
17 |
| Cynipid gall wasp |
Andricus crispator |
4 |
| Cynipid gall wasp |
Andricus curvator |
4 |
| Cynipid gall wasp |
Andricus galeatus |
2 |
| Cynipid gall wasp |
Andricus glutinosus |
1 |
| Cynipid gall wasp |
Andricus lignicolus |
3 |
| Cynipid gall wasp |
Andricus lucidus |
2 |
| Cynipid gall wasp |
Andricus quercusradicis |
1 |
| Cynipid gall wasp |
Andricus quercustozae |
7 |
| Cynipid gall wasp |
Andricus solitarius |
4 |
| Cynipid gall wasp |
Aphelonyx cerricola |
12 |
| Cynipid gall wasp |
Cynips divisa |
1 |
| Cynipid gall wasp |
Cynips longiventris |
1 |
| Cynipid gall wasp |
Cynips quercusfolii |
6 |
| Cynipid gall wasp |
|
2 |
| Cynipid gall wasp |
Neuroterus quercusbaccarum |
2 |
| decay |
|
2 |
| deer |
|
1 |
| definite-marked tussock moth |
Orgyia definita |
2 |
| defoliation due to unknown cause |
|
4 |
| diamondleaf willow |
Salix planifolia |
1 |
| Diatrype fungus |
Diatrype disciformis |
1 |
| Diplodia blight |
Sphaeropsis sapinea |
1 |
| dog's nose fungus |
Camarops petersii |
5 |
| dogwood |
Cornus spp. |
1 |
| dogwood anthracnose |
Discula destructiva |
1 |
| Douglas-fir tussock moth |
Orgyia pseudotsugata |
2 |
| downy oak |
Quercus pubescens |
1 |
| Dryad's Saddle |
Polyporus squamosus |
2 |
| dusky clearwing |
Paranthrene tabaniformis |
1 |
| Dutch elm disease |
Ophiostoma ulmi |
11 |
| early thorn |
Selenia dentaria |
1 |
| eastern cottonwood |
Populus deltoides |
1 |
| eastern cottonwood |
Populus deltoides ssp. deltoides |
4 |
| eastern gray squirrel |
Sciurus carolinensis |
2 |
| Eastern Nycteoline |
Nycteola asiatica |
1 |
| eastern redbud |
Cercis canadensis |
2 |
| eastern tent caterpillar |
Malacosoma americanum |
5 |
| Ectoedemia liebwerdella |
Ectoedemia liebwerdella |
10 |
| eightspotted forester |
Alypia octomaculata |
1 |
| elegant polypore |
Polyporus varius |
2 |
| elm leaf beetle |
Xanthogaleruca luteola |
2 |
| elm sawfly |
Cimbex americana |
3 |
| elm spanworm |
Ennomos subsignaria |
2 |
| Elytroderma needle cast of pine |
Elytroderma deformans |
1 |
| emerald ash borer |
Agrilus planipennis |
78 |
| English oak |
Quercus robur |
2 |
| Eriophyid mite |
Aceria macrorrhyncha |
19 |
| Eriophyid mite |
|
3 |
| Eriophyid mites |
Eriophyes spp. |
9 |
| eucalyptus |
Eucalyptus spp. |
15 |
| European alder |
Alnus glutinosa |
35 |
| European beech |
Fagus sylvatica |
8 |
| European chestnut |
Castanea sativa |
5 |
| European fruit lecanium |
Parthenolecanium corni |
1 |
| European hardwood ambrosia beetle |
Trypodendron domesticum |
2 |
| European hornbeam |
Carpinus betulus |
2 |
| European larch |
Larix decidua |
1 |
| European mistletoe |
Viscum album |
4 |
| European mountain-ash |
Sorbus aucuparia |
4 |
| European oak bark beetle |
Scolytus intricatus |
5 |
| European oak leaf roller |
Tortrix viridana |
18 |
| European rosette willow gall midge |
Rabdophaga rosaria |
1 |
| European spruce bark beetle |
Ips typographus |
38 |
| European white birch |
Betula pendula |
2 |
| fall cankerworm |
Alsophila pometaria |
2 |
| fall color |
|
7 |
| fall webworm |
Hyphantria cunea |
11 |
| fig/banyan |
Ficus spp. |
6 |
| flat-faced longhorn |
Urographis fasciatus |
2 |
| flatheaded or metallic wood borer |
|
11 |
| flatid planthopper |
|
1 |
| Florida red scale |
Chrysomphalus aonidum |
4 |
| flowering ash |
Fraxinus ornus |
1 |
| flowering dogwood |
Cornus florida |
1 |
| flush cut |
|
3 |
| fly agaric |
Amanita muscaria |
9 |
| forest caterpillar hunter |
Calosoma sycophanta |
1 |
| forest tent caterpillar |
Malacosoma disstria |
17 |
| forester caterpillars |
Alypia spp. |
1 |
| Fremont cottonwood |
Populus fremontii |
2 |
| froghopper |
Cercopis vulnerata |
6 |
| frost and winter injury (general) |
|
14 |
| gall midge |
Contarinia subulifex |
6 |
| gall midge |
Craneiobia corni |
13 |
| gall midge |
Didymomyia tiliacea |
5 |
| gall midge |
Dryomia circinnans |
27 |
| gall midge |
Hartigiola annulipes |
7 |
| gall midge |
Janetia cerris |
1 |
| gall midge |
Lasioptera populnea |
2 |
| gall midge |
Macrodiplosis volvens |
1 |
| gall midge |
Mikiola fagi |
8 |
| gall midge |
Obolodiplosis robiniae |
7 |
| gall midge |
Rabdophaga salicis |
7 |
| gall midges |
|
3 |
| Ganoderma root and butt rot |
Ganoderma australe |
2 |
| Ganoderma root and butt rot |
Ganoderma lucidum |
25 |
| Geometrid moth |
|
2 |
| Geometrid moth |
Peribatodes rhomboidaria |
1 |
| Georgia oak |
Quercus georgiana |
4 |
| gilled polypore |
Lenzites betulina |
1 |
| ginkgo |
Ginkgo biloba |
36 |
| gloomy scale |
Melanaspis tenebricosa |
3 |
| goat willow |
Salix caprea |
1 |
| Gold pit oak splendour beetle |
Chrysobothris affinis |
1 |
| goldenrain tree |
Koelreuteria bipinnata |
1 |
| goldspotted oak borer |
Agrilus coxalis auroguttatus |
3 |
| granulate ambrosia beetle |
Xylosandrus crassiusculus |
1 |
| gray alder |
Alnus incana |
5 |
| great capricorn beetle |
Cerambyx cerdo |
9 |
| great oak beauty |
Hypomecis roboraria |
1 |
| green alga |
Cephaleuros virescens |
2 |
| green ash |
Fraxinus pennsylvanica |
9 |
| Greene's mountain ash |
Sorbus scopulina |
13 |
| greenstriped mapleworm |
Dryocampa rubicunda |
1 |
| Guignardia blotch of buckeyes and horsechestnuts |
Guignardia aesculi |
2 |
| gumbo limbo |
Bursera simaruba |
1 |
| gypsy moth |
Lymantria dispar |
149 |
| hackberry |
Celtis spp. |
1 |
| hackberry blistergall psyllid |
Pachypsylla celtidisvesiculum |
6 |
| hail |
|
3 |
| Hawai'i kauilatree |
Alphitonia ponderosa |
5 |
| Hawai'i olive |
Nestegis sandwicensis |
16 |
| Hawai'i pricklyash |
Zanthoxylum hawaiiense |
2 |
| Hawai'i roughbush |
Streblus pendulinus |
4 |
| hazel alder |
Alnus serrulata |
4 |
| hazel leaf-roller |
Byctiscus betulae |
1 |
| Hebrew character |
Orthosia gothica |
1 |
| hen of the woods |
Grifola frondosa |
1 |
| hickory tussock moth |
Lophocampa caryae |
3 |
| hierba del soldado |
Melochia umbellata |
1 |
| hobblebush |
Viburnum lantanoides |
1 |
| honey bee |
Apis mellifera |
1 |
| honeylocust |
Gleditsia triacanthos |
4 |
| honeylocust leafhopper |
Macropsis fumipennis |
1 |
| honeylocust pod gall midge |
Dasineura gleditchiae |
1 |
| hophornbeam |
Ostrya virginiana |
9 |
| Horace's duskywing |
Erynnis horatius |
1 |
| horse chestnut leafminer |
Cameraria ohridella |
25 |
| human caused injury |
|
1 |
| Hymenochaete fungus |
Hymenochaete rubiginosa |
1 |
| Hypoxylon canker of aspen |
Entoleuca mammata |
2 |
| Hypoxylon canker of oak |
Biscogniauxia atropunctata atropunctata |
4 |
| Hypoxylon cankers |
Hypoxylon spp. |
2 |
| imbedded objects |
|
1 |
| Japanese wax scale |
Ceroplastes japonicus |
1 |
| katydid |
|
2 |
| Kentish glory |
Endromis versicolora |
1 |
| Kentucky coffeetree |
Gymnocladus dioicus |
3 |
| Kentucky yellowwood |
Cladrastis kentukea |
2 |
| kiawe |
Prosopis pallida |
9 |
| knopper gall |
Andricus quercuscalicis |
20 |
| koa |
Acacia koa |
19 |
| Kobus magnolia |
Magnolia kobus |
1 |
| Kousa dogwood |
Cornus kousa |
1 |
| lace bugs |
|
1 |
| lace bugs |
Teleonemia spp. |
1 |
| lackey moth |
Malacosoma neustria |
3 |
| Lanai colicwood |
Myrsine lanaiensis |
1 |
| larch casebearer |
Coleophora laricella |
5 |
| larch elm bark beetle |
Hylesinus crenatus |
1 |
| large aspen tortrix |
Choristoneura conflictana |
5 |
| large elm beetle |
Scolytus scolytus |
2 |
| large gray willow |
Salix cinerea |
3 |
| laurel wilt |
Raffaelea lauricola |
13 |
| leaf beetle |
Cryptocephalus coryli |
1 |
| leaf beetle |
|
5 |
| leaf blotch miner moth |
Caloptilia alchimiella |
1 |
| leaf blotch miner moth |
Phyllonorycter heegeriella |
3 |
| leaf blotch miner moth |
Phyllonorycter issikii |
19 |
| leaf blotch miner moth |
Phyllonorycter platani |
1 |
| leaf blotch miner moth |
Phyllonorycter populifoliella |
1 |
| leaf blotch miner moth |
Phyllonorycter robiniella |
5 |
| leaf blotch miner moth |
Phyllonorycter roboris |
7 |
| leaf mold |
Articularia quercina |
1 |
| leaf rolling weevil |
Byctiscus populi |
3 |
| leaf spot |
Mycosphaerella alocasiae |
1 |
| leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
1 |
| leafminer |
Stigmella atricapitella |
4 |
| leafrollers and olethreutine moths |
|
9 |
| lenga |
Nothofagus pumilio |
4 |
| lightning |
|
5 |
| lilac leafminer |
Gracillaria syringella |
2 |
| lime hawk-moth |
Mimas tiliae |
1 |
| linden looper |
Erannis tiliaria |
1 |
| littleleaf linden |
Tilia cordata |
3 |
| lobelia dagger moth |
Acronicta lobeliae |
3 |
| loblolly bay |
Gordonia lasianthus |
3 |
| locust borer |
Megacyllene robiniae |
2 |
| locust digitate leaf miner |
Parectopa robiniella |
12 |
| locust leafminer |
Odontota dorsalis |
1 |
| luna moth |
Actias luna |
1 |
| lunar marbled brown |
Drymonia ruficornis |
2 |
| magnolia scale |
Neolecanium cornuparvum |
9 |
| maple |
Acer spp. |
2 |
| maple aphid |
Periphyllus aceris |
9 |
| maple bladdergall mite |
Vasates quadripedes |
2 |
| mapleleaf viburnum |
Viburnum acerifolium |
1 |
| marble gall |
Andricus kollari |
5 |
| Marssonina leaf spot |
Marssonina tiliae |
1 |
| Maui hala pepe |
Pleomele auwahiensis |
1 |
| mechanical |
|
1 |
| melaleuca |
Melaleuca quinquenervia |
2 |
| melaleuca |
Melaleuca spp. |
1 |
| Melampsora rust |
Melampsora epitea |
3 |
| metalic wood-boring beetle |
Agrilus cyanescens |
1 |
| metalic wood-boring beetle |
Agrilus obsoletoguttatus |
1 |
| metalic wood-boring beetle |
Agrilus populneus |
2 |
| metalic wood-boring beetles |
Agrilus spp. |
2 |
| metalic wood-boring beetles |
Dicerca spp. |
1 |
| mimosa |
Albizia julibrissin |
1 |
| mistletoe |
Loranthus europaeus |
2 |
| mistletoe |
Misodendrum linearifolium |
2 |
| mistletoe |
Misodendrum oblongifolium |
2 |
| mistletoe |
Misodendrum punctulatum |
3 |
| mistletoe |
Phrygilanthus sonorae |
3 |
| mite |
Phytoptus avellanae |
1 |
| mixed species stands |
|
3 |
| modest sphinx |
Pachysphinx modesta |
1 |
| monkeypuzzle tree |
Araucaria araucana |
2 |
| mottled umber moth |
Erannis defoliaria |
2 |
| mountain dryas |
Dryas octopetala |
1 |
| mountain magnolia |
Magnolia fraseri |
1 |
| mountain maple |
Acer spicatum |
5 |
| mountain silverbell |
Halesia tetraptera |
3 |
| mountain-ash sawfly |
Pristiphora geniculata |
1 |
| mulberry |
Morus spp. |
2 |
| Nectria canker |
Nectria galligena |
1 |
| Neonectria canker |
Neonectria galligena |
2 |
| New Mexico locust |
Robinia neomexicana |
1 |
| Nikko maple |
Acer maximowiczianum |
1 |
| northern catalpa |
Catalpa speciosa |
3 |
| northern pin oak |
Quercus ellipsoidalis |
4 |
| northern red oak |
Quercus rubra |
26 |
| Norway maple |
Acer platanoides |
93 |
| Norway maple aphid |
Periphyllus lyropictus |
1 |
| nuclear polyhedrosis virus |
Nucleopolyhedrovirus |
1 |
| nutrient deficiency |
|
1 |
| oak |
Quercus spp. |
1 |
| oak anthracnose |
Apiognomonia errabunda |
9 |
| oak apple gall |
Amphibolips spp. |
1 |
| oak apple gall wasp |
Biorhiza pallida |
9 |
| oak borer |
Agrilus angustulus |
1 |
| oak decline |
|
4 |
| oak flea beetle |
Altica quercetorum |
12 |
| oak flea weevil |
Orchestes quercus |
1 |
| oak galls |
|
2 |
| oak lace bug |
Corythucha arcuata |
7 |
| oak leaf blister |
Taphrina caerulescens |
4 |
| oak phylloxerids |
Phylloxera spp. |
1 |
| oak processionary moth |
Thaumetopoea processionea |
7 |
| oak roller weevil |
Attelabus nitens |
9 |
| oak rough bulletgall wasp |
Disholcaspis quercusmamma |
2 |
| oak slug sawfly |
Caliroa annulipes |
4 |
| oak splendour beetle |
Agrilus biguttatus |
2 |
| oak timberworm |
Arrenodes minutus |
1 |
| oak wilt |
Ceratocystis fagacearum |
60 |
| oakleaf hydrangea |
Hydrangea quercifolia |
1 |
| ocellate gall midge |
Acericecis ocellaris |
1 |
| Ohia decline |
|
1 |
| Ohio buckeye |
Aesculus glabra |
2 |
| osage-orange |
Maclura pomifera |
8 |
| overcup oak |
Quercus lyrata |
1 |
| oyster mushroom |
Pleurotus ostreatus |
1 |
| Pacific madrone |
Arbutus menziesii |
6 |
| painted hickory borer |
Megacyllene caryae |
1 |
| pale tussock moth |
Calliteara pudibunda |
40 |
| pandora moth |
Coloradia pandora |
1 |
| paper birch |
Betula papyrifera |
11 |
| paper-mulberry |
Broussonetia papyrifera |
5 |
| peach bark beetle |
Phloeotribus liminaris |
1 |
| pear sawfly |
Caliroa cerasi |
1 |
| pear thrips |
Taeniothrips inconsequens |
1 |
| pecan |
Carya illinoinensis |
4 |
| peppered moth |
Biston betularia |
1 |
| periodical cicada |
Magicicada septendecim |
6 |
| periodical cicada |
Magicicada spp. |
13 |
| pesticides |
|
8 |
| phylloxera |
Phylloxera popularia |
1 |
| Phytophthora disease of alders |
Phytophthora alni |
5 |
| Phytophthora kernoviae |
Phytophthora kernoviae |
6 |
| Phytophthora root rot |
Phytophthora cactorum |
4 |
| pigeon tremex |
Tremex columba |
1 |
| pilose checkered beetle |
Chariessa pilosa |
1 |
| pin cherry |
Prunus pensylvanica |
1 |
| pin oak |
Quercus palustris |
5 |
| pinhole borer |
Platypus cylindrus |
1 |
| pinkstriped oakworm |
Anisota virginiensis |
1 |
| planting |
|
2 |
| plum/cherry |
Prunus spp. |
1 |
| Plutellid moth |
Ypsolopha alpella |
1 |
| polyphemus moth |
Antheraea polyphemus |
6 |
| polypore fungus |
Polyporus alveolaris |
5 |
| pondberry |
Lindera melissifolia |
2 |
| poor architecture |
|
2 |
| poplar hawk-moth |
Laothoe populi |
1 |
| poplar leaf beetle |
Chrysomela populi |
2 |
| poplar tentmaker |
Clostera inclusa |
1 |
| Poplar tip moth |
Clostera anastomosis |
4 |
| poplar twiggall fly |
Hexomyza schineri |
3 |
| poplar-and-willow borer |
Cryptorhynchus lapathi |
2 |
| post oak |
Quercus stellata |
6 |
| powdery mildew |
Erysiphe palczewskii |
1 |
| powdery mildew |
Phyllactinia mali |
1 |
| powdery mildew of oak |
Microsphaera alphitoides |
2 |
| prickly-ash |
Zanthoxylum americanum |
5 |
| princesstree |
Paulownia tomentosa |
6 |
| pruning (general) |
|
8 |
| purple hairstreak |
Quercusia quercus |
1 |
| Pyralid moth |
Acrobasis consociella |
1 |
| quaking aspen |
Populus tremuloides |
16 |
| question mark |
Polygonia interrogationis |
1 |
| quince rust |
Gymnosporangium clavipes |
2 |
| quinine |
Cinchona pubescens |
1 |
| red buckeye |
Aesculus pavia |
3 |
| red mangrove |
Rhizophora mangle |
1 |
| red maple |
Acer rubrum |
16 |
| red mulberry |
Morus rubra |
4 |
| red oak borer |
Enaphalodes rufulus |
34 |
| red polypore |
Pycnoporus cinnabarinus |
1 |
| red roller |
Ancylis mitterbacheriana |
1 |
| red-belted fungus |
Fomitopsis pinicola |
1 |
| red-humped oakworm moth |
Symmerista canicosta |
1 |
| redbay |
Persea borbonia |
1 |
| redbay ambrosia beetle |
Xyleborus glabratus |
9 |
| redbud |
Cercis spp. |
1 |
| redbud leaffolder |
Fascista cercerisella |
1 |
| redheaded ash borer |
Neoclytus acuminatus |
2 |
| redosier dogwood |
Cornus sericea |
4 |
| redwood |
Sequoia sempervirens |
1 |
| regl piercer |
Pammene regiana |
1 |
| remote sensing |
|
1 |
| resin birch |
Betula glandulosa |
8 |
| Rhodotus fungus |
Rhodotus palmatus |
1 |
| Rimosus decay |
Phellinus robiniae |
4 |
| ripped pruning cuts |
|
1 |
| risk tree |
|
3 |
| river birch |
Betula nigra |
8 |
| roble beech |
Nothofagus obliqua |
13 |
| rock elm |
Ulmus thomasii |
2 |
| rockspirea |
Holodiscus dumosus |
7 |
| root diseases and rots |
|
1 |
| rose gum |
Angophora costata |
3 |
| Russian-olive |
Elaeagnus angustifolia |
5 |
| saddleback caterpillar |
Acharia stimulea |
1 |
| sand hickory |
Carya pallida |
4 |
| sandbar willow |
Salix interior |
2 |
| sassafras |
Sassafras albidum |
5 |
| satinleaf |
Chrysophyllum oliviforme |
1 |
| saucer magnolia |
Magnolia x soulangiana |
1 |
| sawfly |
Apethymus serotinus |
1 |
| sawfly |
Caliroa cinxia |
3 |
| sawfly |
Cimbex fagi |
1 |
| sawfly |
Craesus septentrionalis |
2 |
| sawfly |
Pontania dolichura |
1 |
| sawfly |
Pontania vesicator |
1 |
| sawmill |
|
1 |
| sawtooth oak |
Quercus acutissima |
3 |
| scrub live oak |
Quercus geminata |
1 |
| serviceberry |
Amelanchier alnifolia |
8 |
| sessile oak |
Quercus petraea |
3 |
| shagbark hickory |
Carya ovata |
12 |
| shamel ash |
Fraxinus uhdei |
2 |
| shellbark hickory |
Carya laciniosa |
3 |
| shelterwood |
|
5 |
| shingle oak |
Quercus imbricaria |
5 |
| shortfruit willow |
Salix brachycarpa |
4 |
| Siberian elm |
Ulmus pumila |
2 |
| silkoak |
Grevillea robusta |
2 |
| silver linden |
Tilia tomentosa |
1 |
| silver maple |
Acer saccharinum |
10 |
| slippery elm |
Ulmus rubra |
4 |
| smaller European elm bark beetle |
Scolytus multistriatus |
24 |
| smooth patch of oak |
Aleurodiscus oakesii |
2 |
| snout beetles or weevils |
|
1 |
| snow and ice damage (snow load) |
|
24 |
| soft scale |
Parthenolecanium rufulum |
2 |
| soft scales |
Parthenolecanium spp. |
1 |
| solider beetle |
Cantharis fusca |
1 |
| solitary maple leaf gall mite |
Aceria macrochela |
1 |
| southern catalpa |
Catalpa bignonioides |
1 |
| southern pine beetle |
Dendroctonus frontalis |
4 |
| spiny caterpillar |
Ormiscodes cinnamomea |
2 |
| spiny looper |
Phigalia titea |
4 |
| spittlebug |
Aphrophora salicina |
20 |
| sprawler |
Asteroscopus sphinx |
1 |
| squirrel |
Sciurus spp. |
2 |
| Stag beetle |
Lucanus cervus |
1 |
| staghorn sumac |
Rhus typhina |
1 |
| striped maple |
Acer pensylvanicum |
1 |
| Strumella canker |
Urnula craterium |
1 |
| sudden aspen decline |
|
3 |
| sudden oak death |
Phytophthora ramorum |
77 |
| sugar maple |
Acer saccharum |
6 |
| sulfur shelf |
Laetiporus sulphureus |
15 |
| swamp white oak |
Quercus bicolor |
10 |
| sweet bay |
Laurus nobilis |
2 |
| sweet cherry |
Prunus avium |
1 |
| sweetgum |
Liquidambar spp. |
1 |
| sweetgum |
Liquidambar styraciflua |
11 |
| sycamore lace bug |
Corythucha ciliata |
3 |
| Sycamore maple |
Acer pseudoplatanus |
22 |
| taique |
Desfontainia spinosa |
1 |
| tar spot of maple |
Rhytisma acerinum |
1 |
| Tasmanian bluegum |
Eucalyptus globulus |
2 |
| Tasmanian bluegum |
Eucalyptus globulus ssp. globulus |
1 |
| tent caterpillar |
Eriogaster lanestris |
3 |
| Texas live oak |
Quercus fusiformis |
1 |
| thick-walled maze polypore |
Daedalea quercina |
1 |
| thin-walled maze polypore |
Daedaleopsis confragosa |
2 |
| Thousand Cankers Disease |
Geosmithia morbida |
5 |
| tinder fungus |
Fomes fomentarius |
6 |
| Tortricid moth |
Aleimma loeflingiana |
1 |
| Tortricid moth |
Ancylis upupana |
1 |
| Tortricid moth |
Epinotia festivana |
1 |
| Trametes wood decay |
Trametes hirsuta |
1 |
| tree-of-heaven |
Ailanthus altissima |
5 |
| tuliptree scale |
Toumeyella liriodendri |
1 |
| twig girdler |
Oncideres dejeanii |
2 |
| twolined chestnut borer |
Agrilus bilineatus |
4 |
| unknown |
|
6 |
| unpaved roads and trails |
|
1 |
| variable oakleaf caterpillar |
Lochmaeus manteo |
1 |
| veiled polypore |
Cryptoporus volvatus |
1 |
| vein pocket gall |
Macrodiplosis erubescens |
2 |
| velvet foot |
Flammulina velutipes |
1 |
| viburnum borer |
Synanthedon viburni |
2 |
| walkingstick |
Diapheromera femorata |
2 |
| walnut anthracnose |
Gnomonia leptostyla |
1 |
| walnut twig beetle |
Pityophthorus juglandis |
1 |
| web-spinning pine-sawfly |
Pamphilius phyllisae |
2 |
| webworm |
Pococera spp. |
5 |
| western redbud |
Cercis canadensis var. texensis |
4 |
| western tent caterpillar |
Malacosoma californicum |
20 |
| wheat stem rust |
Puccinia graminis |
1 |
| white ash |
Fraxinus americana |
11 |
| white heartwood rot |
Phellinus tremulae |
1 |
| white manjack |
Cordia dentata |
1 |
| white mulberry |
Morus alba |
1 |
| white oak |
Quercus alba |
16 |
| white poplar |
Populus alba |
6 |
| white satin moth |
Leucoma salicis |
1 |
| whitemarked tussock moth |
Orgyia leucostigma |
3 |
| wild coffee |
Psychotria spp. |
2 |
| wild pear |
Pyrus pyraster |
1 |
| willow |
Salix spp. |
1 |
| willow leaf beetle |
Chrysomela vigintipunctata |
17 |
| willow leaf beetle |
Lochmaea capreae |
3 |
| willow leaf gall mite |
Aculus tetanothrix |
2 |
| willow redgall sawfly |
Pontania promixa |
1 |
| willow sawfly |
Nematus ventralis |
2 |
| willow scale |
Diaspidiotus gigas |
1 |
| wind |
|
1 |
| winged elm |
Ulmus alata |
1 |
| winter moth |
Operophtera brumata |
1 |
| witch-hazel |
Hamamelis virginiana |
1 |
| wood borer of coigue |
Holopterus chilensis |
1 |
| wood ear |
Auricularia auricula-judae |
13 |
| wood rot |
Bjerkandera adusta |
1 |
| woodpeckers |
|
2 |
| woolly alder aphid |
Prociphilus tessellatus |
6 |
| woolly beech aphid |
Phyllaphis fagi |
12 |
| woolly maple aphid |
Neoprociphilus aceris |
1 |
| yellow birch |
Betula alleghaniensis |
2 |
| yellow buckeye |
Aesculus flava |
2 |
| yellow paloverde |
Parkinsonia microphylla |
2 |
| yellow-gray underwing |
Catocala retecta |
1 |
| yellow-poplar |
Liriodendron tulipifera |
12 |
