anthracnose
paper birch
decline
northern white-cedar
brown spot needle blight
eastern white pine
other foliage / shoot disease
balsam woolly adelgid
balsam fir
multi-damage (insect/disease)
No data
defoliators
hemlock decline
western hemlock
fir engraver
fir
western tent caterpillar
Douglas-fir beetle
Douglas-fir
Pacific madrone decline
Pacific madrone
silver fir beetle
foliage discoloration
maple decline
maple
root/butt diseases
western balsam bark beetle
subalpine fir
Douglas-fir engraver
Douglas-fir rust
cottonwood; poplar
Port-Orford-cedar root disease
Port-Orford-cedar
black pineleaf scale
ponderosa pine
mountain pine beetle
lodgepole pine
spruce beetle
spruce
needlecast
western spruce budworm
pine engraver
Armillaria root disease
hardwoods
beech bark disease
American beech
birch dieback
birch
birch leafminer
large aspen tortrix
quaking aspen
spruce aphid
Sitka spruce
Swiss needle cast
western white pine
white pine blister rust
western pine beetle
Douglas-fir tussock moth
willow
foliage and shoot diseases
California red fir
pitch pine
satin moth
larch casebearer
western larch
red alder
whitebark pine
Lophodermella needle cast of p
red spruce
pine needle scale
bark beetles
western oak looper
oak(deciduous)
larch needle cast
sawflies
Diplodia canker
Elytroderma needle blight
larch needle blight
subalpine fir mortality
western blackheaded budworm
skeletonizer
ash
Bruce spanworm
ash decline/yellows
dieback
red pine scale
forest tent caterpillar
pine
Douglas-fir dwarf mistletoe
softwoods
Engelmann spruce
hardwoods/softwoods
sterile conk trunk rot of birc
carpenterworm
Cytospora canker of fir
Lophodermium needle cast of pi
black cottonwood
larch bud moth
pine needle sheathminer
alder flea beetle
not listed
unknown defoliator
false hemlock looper
Nectria canker
blight
oak skeletonizer
eastern larch beetle
tamarack
jack pine budworm
jack pine
black ash
spruce budworm
aspen defoliation
white spruce
black spruce
small southern pine engraver
variable oakleaf caterpillar
northern red oak
yellowheaded spruce sawfly
hardwood leaf rusts
Rhabdocline neele cast
broom rusts
willow defoliation
birch leaf fungus
pyralid moth
pine tussock moth
larch (introduced)
Marssonina blight
balsam popular
Septoria leaf spot and canker
Septoria leaf spot
decline complexes/dieback
larch decline
leaf spots
fall hardwood defoliator compl
sugar maple
arborvitae leafminer
hardwood anthracnose
sugar maple borer
Stillwells syndrome
stem decays/cankers
red pine
fall cankerworm
boring insects
hemlock woolly adelgid
browntail moth
whitespotted sawyer
eastern dwarf mistletoe
bacterial leaf scorch
mistletoe
limber pine
twolined chestnut borer
leaftier
locust leafminer
black locust
maple leafcutter
black willow
white ash
Saratoga spittlebug
gypsy moth
pine needleminer
needleminers
Dutch elm disease
oak leafroller
oak leaftier
yellow birch
hemlock borer
eastern hemlock
Atlantic white-cedar
pine tip moths
Septoria leaf spot of maple
tar spot
dwarf mistletoe
unknown
elm
aspen leafminer
annosus root disease
powdery mildew
bigtooth aspen
red turpentine beetle
hemlock
eastern spruce gall adelgid
Cooley spruce gall adelgid
black turpentine beetle
pine gall weevil
general diseases
larch sawfly
oak wilt
ips
pear thrips
ambrosia beetles
red maple
tomentosus root rot/false velv
hemlock sawfly
introduced basswood thrips
basswood
beech scale
ash rust
bronze birch borer
thrips
American basswood
oak worms
aspen blotchminer
gall mite
maple webworm
winter moth
common pinyon
lodgepole sawfly
Engelmann spruce weevil
greenstriped mapleworm
pine leaf adelgid
spider mites
Hypoxylon canker of aspen
Norfolk Island pine decline
Norway spruce
spanworm
Japanese beetle
flatheaded borer
linden looper
red pine needle midge
Rhizosphaera needle cast
jumping oak gall wasp
cherry scallop shell moth
fall webworm
maple trumpet skeletonizer
pine butterfly
weevil
eastern tent caterpillar
black cherry
tip beetles
hickory bark beetle
bitternut hickory
leafroller/seed moth
sucking insects
western gall rust
leaf blister of oak
leafcutting bees
sugar pine
five-needle pine decline
oak decline
sycamore anthracnose
orangestriped oakworm
Nantucket pine tip moth
locust borer
white pine sawfly
cherry; plum
periodical cicada
bristlecone pine
elongate hemlock scale
shoot borers
chokecherry
black oak
bear oak; scrub oak
loopers
sudden aspen decline
Scotch pine
spring cankerworm
scarlet oak
dwarf live oak
pin oak
grand fir
tarnished plant bug
loblolly pine
biotic damage
wild plum
white fir
emerald ash borer
bur oak
sycamore
general insects
flatheaded fir borer
true fir bark beetles
California flatheaded borer
knobcone pine
western cedar bark beetle
incense-cedar
hickory
white oak
Dothistroma needle blight
American dwarf mistletoe
comandra blister rust
Jeffrey pine beetle
red fir dwarf mistletoe
aspen trunk rot
introduced pine sawfly
sapsuckers
Modoc budworm
honeysuckle aphids
sudden oak death
tanoak
Jeffrey pine
pinyon ips
singleleaf pinyon
scale insects
western juniper
silver maple
dwarf post oak
Asian longhorned beetle
black stain root disease
geometrid moth
wasp
Cytospora canker of aspen
other defoliator (known)
American elm
lace bugs
chestnut oak
southern pine beetle
gallmaker insects
lodgepole pine beetle
unknown gallmaking insect
leafhopper
Gambel oak
limber pine dwarf mistletoe
eastern redcedar
black walnut
California fivespined ips
grey pine
mistletoes
hawthorn
chewing insects
scarlet oak sawfly
pinyon needle scale
pinewood nematode
blue spruce
white pine adelgid
Hypoxylon canker of oak
shingle oak
yellow-poplar
pinyon sawfly
pinyon pine mortality
black maple
Phoberia moth
Monterey pine
hickory tussock moth
sweetgum
coast live oak
lodgepole needleminer
buckeye; horsechestnut
pitch canker of pines
bishop pine
blue oak