| 0907008 |
whitespotted sawyer |
Monochamus scutellatus |
flagged branch tips, indicating adult feeding injury |
| 0907005 |
balsam shootboring sawfly |
Pleroneura brunneicornis |
late sign of damage (resemblance to frost injury) |
| 0907034 |
locust leafminer |
Odontota dorsalis |
skeletonize leaves before seeking over-wintering sites; black locust adult |
| 0907011 |
pine leaf adelgid |
Pineus pinifoliae |
feeding results in flagged lateral shoot tips that begin to appear in mid-summer |
| 0907006 |
balsam twig aphid |
Mindarus abietinus |
characteristic curled needles on balsam fir |
| 0907009 |
whitespotted sawyer |
Monochamus scutellatus |
wound caused by adult feeding |
| 0907010 |
pine bark adelgid |
Pineus strobi |
white, woolly tufts wax coat trunk of white pine |
| 0907042 |
maple bladdergall mite |
Vasates quadripedes |
on sugar maple |
| 5395240 |
balsam shootboring sawfly |
Pleroneura brunneicornis |
|
| 5395244 |
bruce spanworm |
Operophtera bruceata |
|
| 5395250 |
Crimson erineum mite |
Aceria elongatus |
|
| 5395258 |
poplar sawfly |
Trichiocampus viminalis |
|
| 5395247 |
Delphinella shoot blight |
Delphinella abietis |
|
| 5395248 |
Diplodia tip blights |
Diplodia spp. |
|
| 5395262 |
white satin moth |
Leucoma salicis |
|
| 5395263 |
white satin moth |
Leucoma salicis |
|
| 5395257 |
pine spittlebug |
Aphrophora cribrata |
|
| 5395241 |
balsam woolly adelgid |
Adelges piceae |
|
| 5395242 |
balsam gall midge |
Paradiplosis tumifex |
|
| 5395243 |
maple bladdergall mite |
Vasates quadripedes |
|
| 5395246 |
cooley spruce gall adelgid |
Adelges cooleyi |
|
| 5395251 |
fir broom rust |
Melampsorella caryophyllacearum |
|
| 5395252 |
Geometrid moth |
Lambdina athasaria |
|
| 5395253 |
European fruit lecanium |
Parthenolecanium corni |
1st instar |
| 5395254 |
European fruit lecanium |
Parthenolecanium corni |
oozing and also a wasp is in picture |
| 5395255 |
European fruit lecanium |
Parthenolecanium corni |
|
| 5395256 |
pine leaf adelgid |
Pineus pinifoliae |
|
| 5395259 |
Rhizosphaera needle cast |
Rhizosphaera pini |
|
| 5395260 |
spruce gall adelgid |
Pineus similis |
|
| 5395261 |
white satin moth |
Leucoma salicis |
|
| 5395249 |
Diplodia tip blights |
Diplodia spp. |
|
| 5395245 |
balsam woolly adelgid |
Adelges piceae |
|
| 5395239 |
balsam shootboring sawfly |
Pleroneura brunneicornis |
|
| 5389768 |
fall cankerworm |
Alsophila pometaria |
Smaller third proleg appears to have been pulled up. The markings are typical of the dark form of this species. |
| 5389766 |
elm flea beetle |
Altica ulmi |
larve on elm leaf |
| 5389767 |
elm flea beetle |
Altica ulmi |
defoliated leaves |
| 5389774 |
oak leaf blister |
Taphrina caerulescens |
leaf damage |
| 5389775 |
Braconid wasps |
|
larva with external parasites, probably Braconidae |
| 5389776 |
saddled prominent |
Heterocampa guttivitta |
larva on sugar maple leaf |
| 5389777 |
sugar maple borer |
Glycobius speciosus |
damaged sugar maple |
| 5389778 |
sugar maple borer |
Glycobius speciosus |
|
| 5389779 |
yellowheaded spruce sawfly |
Pikonema alaskensis |
larvae feeding on blue spruce |
| 5389769 |
forest tent caterpillar |
Malacosoma disstria |
larvae defoliating sugar maple leaf |
| 5389770 |
forest tent caterpillar |
Malacosoma disstria |
old egg mass on top; new on bottom |
| 5389771 |
forest tent caterpillar |
Malacosoma disstria |
larvae on sugar maple leaf |
| 5389772 |
maple leafcutter |
Paraclemensia acerifoliella |
cases on damaged sugar maple leaf |
| 5389773 |
maple leafcutter |
Paraclemensia acerifoliella |
|
| 5389752 |
Armillaria root rots |
Armillaria spp. |
mycelial fans + mushrooms on dying Christmas tree |
| 5389753 |
bruce spanworm |
Operophtera bruceata |
larva on maple leaf |
| 5389754 |
birch leaffolder |
Ancylis discigerana |
folded leaves |
| 5389755 |
birch leaffolder |
Ancylis discigerana |
folded + opened leaf |
| 5389756 |
birch leaffolder |
Ancylis discigerana |
folded leaves |
| 5389757 |
birch leaffolder |
Ancylis discigerana |
folded leaves |
| 5389758 |
birch skeletonizer |
Bucculatrix canadensisella |
larvae on birch leaf |
| 5389759 |
birch skeletonizer |
Bucculatrix canadensisella |
damage + larvae + molting webs |
| 5389760 |
birch skeletonizer |
Bucculatrix canadensisella |
damage + larvae + molting webs |
| 5389761 |
birch skeletonizer |
Bucculatrix canadensisella |
damage by both insects |
| 5389762 |
bruce spanworm |
Operophtera bruceata |
adult female moth |
| 5389763 |
bruce spanworm |
Operophtera bruceata |
freshly laid egg |
| 5389764 |
bruce spanworm |
Operophtera bruceata |
mature egg |
| 5389765 |
bruce spanworm |
Operophtera bruceata |
defoliation pattern |
| 0907030 |
eastern tent caterpillar |
Malacosoma americanum |
spin a silken tent in a tree crotch & feed from there |
| 0907031 |
eastern tent caterpillar |
Malacosoma americanum |
has a white stripe down the back, while forest tent caterpillar has keyhole-shaped white spots |
| 0907032 |
Japanese beetle |
Popillia japonica |
adults feeding on leaves & fruit of more than 200 plants |
| 0907048 |
maple leafcutter |
Paraclemensia acerifoliella |
larva with case after each molt, larva cuts new disks from the leaf to add to its portable case |
| 0907050 |
maple webworm |
Pococera asperatella |
web groups of leaves together as they feed |
| 0907051 |
pear thrips |
Taeniothrips inconsequens |
results from feeding within developing buds |
| 0907054 |
gypsy moth |
Lymantria dispar |
female do not fly they crawl short distance from the pupation site, mate, lay eggs and die, note egg mass |
| 0907055 |
oak skeletonizer |
Bucculatrix ainsliella |
feed on the lower surface of leaves, the upper leaf surfacr remains intact. (Note: the silken tents along the veins where molting takes place) |
| 0907001 |
balsam gall midge |
Paradiplosis tumifex |
laying eggs on newly-emerging needles |
| 0907002 |
balsam gall midge |
Paradiplosis tumifex |
galled needles on balsam fir |
| 0907003 |
balsam shootboring sawfly |
Pleroneura brunneicornis |
early sign of damage |
| 0907004 |
balsam shootboring sawfly |
Pleroneura brunneicornis |
pulled from developing shoot |
| 0907020 |
cooley spruce gall adelgid |
Adelges cooleyi |
gall |
| 0907025 |
birch lace bug |
Corythucha pallipes |
on birch work from the underside to suck sap from leaves, the upper leaf surface
becomes discolored and the lower surface becomes littered with excrement |
| 0907026 |
birch leafminer |
Fenusa pusilla |
trees attacked appear off-color |
| 0907036 |
European snout beetle |
Phyllobius oblongus |
notched marginal feeding is typical |
| 0907039 |
forest tent caterpillar |
Malacosoma disstria |
defoliation tends to be fairly complete with all except major veins and petioles consumed; maple being stripped
note larva |
| 0907040 |
forest tent caterpillar |
Malacosoma disstria |
cluster in groups, do not form tents |
| 0907041 |
Eriophyid mites |
Eriophyes spp. |
red and green felt-like patches |
