| 2253022 |
map/figure |
|
diagram comparing caterpillar, sawfly and looper larva |
| 1241596 |
larch sawfly |
Pristiphora erichsonii |
Larch sawfly larvae feed in groups. These are mature larvae. |
| 2253018 |
sugar pine tortrix |
Choristoneura lambertiana |
|
| 1241603 |
pine needle sheathminer |
Zelleria haimbachi |
Close up showing feeding and webbing around needle bases. Two brown pupae are present near the bottom of the photo. |
| 2253002 |
European pine shoot moth |
Rhyacionia buoliana |
Pupa emergent from tip of shoot ready to emerge as adult |
| 2253087 |
western pineshoot borer |
Eucosma sonomana |
larval exit hole on terminal |
| 2253080 |
spruce beetle |
Dendroctonus rufipennis |
red top trees on mountain side |
| 2253079 |
spruce beetle |
Dendroctonus rufipennis |
|
| 2253031 |
lodgepole terminal weevil |
Pissodes terminalis |
terminal split to show larva and damage in shoot |
| 2253028 |
false hemlock looper |
Nepytia canosaria |
|
| 2253023 |
cranberry girdler |
Chrysoteuchia topiaria |
damage on Douglas fir seedling |
| 2253010 |
pine resin midges |
Cecidomyia spp. |
flagging terminals |
| 2252090 |
spruce beetle |
Dendroctonus rufipennis |
egg and larval galleries |
| 2252092 |
spruce beetle |
Dendroctonus rufipennis |
bark pitch tubes and boring dust |
| 2252093 |
pine engraver |
Ips pini |
newly initiated gallery with adults present |
| 2252089 |
spruce beetle |
Dendroctonus rufipennis |
new egg galleries |
| 2252081 |
mountain pine beetle |
Dendroctonus ponderosae |
|
| 2252083 |
mountain pine beetle |
Dendroctonus ponderosae |
close-up |
| 2252085 |
Douglas-fir beetle |
Dendroctonus pseudotsugae |
showing needles fading in stand of damaged trees on mountainside |
| 2252065 |
galls |
|
cut open showing interior of gall |
| 2252059 |
Gelechiid moths |
|
|
| 2252063 |
cooley spruce gall adelgid |
Adelges cooleyi |
on young douglas fir |
| 2252064 |
pine needle scale |
Chionaspis pinifoliae |
on Mugo pine |
| 2252048 |
fall cankerworm |
Alsophila pometaria |
mass of newly hatched larvae and feeding damage to a leaf |
| 2252028 |
Douglas-fir tussock moth |
Orgyia pseudotsugata |
masses and old pupal case |
| 1241627 |
pine butterfly |
Neophasia menapia |
Cluster of immature pine butterfly larvae. |
| 1241600 |
elegant weevil |
Pachyrhinus elegans |
Adults are metallic colored and they lack a long beak that is typical of many weevil species. |
| 1241564 |
cooley spruce gall adelgid |
Adelges cooleyi |
Galls on branch tips contain developing nymphs. Opened galls are red-brown, turning gray with age, and resemble small cones. |
| 2253003 |
western pineshoot borer |
Eucosma sonomana |
resting on pine shoot |
| 1241748 |
balsam woolly adelgid |
Adelges piceae |
|
| 2254053 |
elegant weevil |
Pachyrhinus elegans |
on ponderosa pine |
| 2252056 |
grasshoppers |
|
|
| 1241478 |
western balsam bark beetle |
Dryocoetes confusus |
The distinctive gallery pattern results from the male excacating a central nuptial chamber from which the several females radiate out to produce their egg galleries. |
| 2253015 |
pandora moth |
Coloradia pandora |
|
| 2252060 |
Douglas-fir needle midge |
Contarinia pseudotsugae |
|
| 1241558 |
western false hemlock looper |
Nepytia freemani |
|
| 2253081 |
fir engraver |
Scolytus ventralis |
bark removed to show gallery pattern |
| 1241597 |
larch needleworm |
Zeiraphera improbana |
Larch bud moth larvae feed in "tubes" made of needle clusters held together and lined with silk. |
| 1241574 |
fir needle casts |
Lirula spp. |
Symptom pattern on fir branches. The red foliage was infected in the previous year. |
| 1241601 |
defoliating weevil |
Magdalis gentilis |
Typical chewing caused by defoliating weevils leaves chunks of needles missing or broken off. |
| 1241513 |
white pine weevil |
Pissodes strobi |
|
| 1241605 |
sugar pine tortrix |
Choristoneura lambertiana |
Chewed and webbed needles showing damage caused by larvae. Damage is similar to western spruce budworm. |
| 2254054 |
elegant weevil |
Pachyrhinus elegans |
on ponderosa pine |
| 2253083 |
pine engraver |
Ips pini |
|
| 2253009 |
lodgepole terminal weevil |
Pissodes terminalis |
terminal split to show tunnel |
| 1241633 |
pine needle scale |
Chionaspis pinifoliae |
|
| 2253085 |
western balsam bark beetle |
Dryocoetes confusus |
|
| 1241552 |
western spruce budworm |
Choristoneura freemani |
Late instar larva. |
| 2253013 |
gouty pitch midge |
Cecidomyia piniinopis |
|
| 2253006 |
western pineshoot borer |
Eucosma sonomana |
shoot split to show larva damage. Note larva at end of tweezers |
| 1241606 |
sugar pine tortrix |
Choristoneura lambertiana |
Sugar pine tortrix larva with ivory colored spots, easily confused with western spruce budworm. |
| 1241623 |
pine looper |
Phaeoura mexicanaria |
A late instar pine looper larva bears resemblance to twigs of its pine host. |
| 1241559 |
western false hemlock looper |
Nepytia freemani |
|
| 1241599 |
lodgepole needleminer |
Coleotechnites milleri |
Late instar larva. This species darkens with each molt. |
| 1241634 |
pine needle scale |
Chionaspis pinifoliae |
White pine needle scales and black mold growth which often develops on the exudates of the scale insects. |
| 1241524 |
desication (wind burn) |
|
Winter desiccation kills foliage and sometimes, branches and terminals on portions of trees exposed above the snow. |
| 1241512 |
gouty pitch midge |
Cecidomyia piniinopis |
Maggots within branch swellings. |
| 2254030 |
long-horned beetles |
|
female (top), male (bottom) |
| 2254031 |
Trogossitid beetles |
|
|
| 2252095 |
flatheaded or metallic wood borer |
|
|
| 2252068 |
mountain pine beetle |
Dendroctonus ponderosae |
being eaten by adult beetle predator |
| 2252071 |
mountain pine beetle |
Dendroctonus ponderosae |
thinning operation to reduce potential for damage |
| 2252076 |
mountain pine beetle |
Dendroctonus ponderosae |
with larvae |
| 2252077 |
mountain pine beetle |
Dendroctonus ponderosae |
in galleries |
| 2252078 |
mountain pine beetle |
Dendroctonus ponderosae |
close-up of pitch tube |
| 2252080 |
mountain pine beetle |
Dendroctonus ponderosae |
young adult |
| 2252061 |
Douglas-fir needle midge |
Contarinia pseudotsugae |
and damage by midge feeding to douglas fir |
| 2252057 |
pine needle sheathminer |
Zelleria haimbachi |
setting on needle |
| 2252058 |
ponderosa pine needleminer |
Coleotechnites moreonella |
|
| 2252032 |
pine butterfly |
Neophasia menapia |
large mass of larvae on side of tree |
| 2252044 |
larch looper |
Macaria sexmaculata sexmaculata |
defoliation on side of mountain |
| 2252049 |
forest tent caterpillar |
Malacosoma disstria |
egg mass and adult |
| 2252050 |
forest tent caterpillar |
Malacosoma disstria |
|
| 2252053 |
variable oakleaf caterpillar |
Lochmaeus manteo |
|
| 2252054 |
alder flea beetle |
Altica ambiens |
skeletonized leaf due to feeding |
| 2252096 |
golden buprestid |
Buprestis aurulenta |
|
| 2252097 |
sequoia pitch moth |
Synanthedon sequoiae |
Note pitch mass with empty pupal case visible |
| 2253001 |
sequoia pitch moth |
Synanthedon sequoiae |
note characteristic masses of pitch at base of tree |
| 2253005 |
European pine shoot moth |
Rhyacionia buoliana |
|
| 2252066 |
balsam woolly adelgid |
Adelges piceae |
close-up |
| 2252082 |
mountain pine beetle |
Dendroctonus ponderosae |
pitch tubes on tree trunk |
| 2252087 |
Douglas-fir beetle |
Dendroctonus pseudotsugae |
series of galleries with larvae |
| 2252088 |
Douglas-fir beetle |
Dendroctonus pseudotsugae |
series of entrance holes on tree bole with boring dust visible on bark |
| 2254041 |
cooley spruce gall adelgid |
Adelges cooleyi |
galls on spruce |
| 2254050 |
larch casebearer |
Coleophora laricella |
|
| 2254051 |
aphids |
|
sooty mold on grand fir |
| 2254052 |
balsam woolly adelgid |
Adelges piceae |
on subalpine fir |
| 2253011 |
gouty pitch midge |
Cecidomyia piniinopis |
pupa |
| 2253012 |
gouty pitch midge |
Cecidomyia piniinopis |
|
| 2253024 |
cranberry girdler |
Chrysoteuchia topiaria |
|
| 2253027 |
western pineshoot borer |
Eucosma sonomana |
female |
| 2253029 |
western pine tip moth |
Rhyacionia bushnelli |
|
