| PLANT |
PEST |
ACTION |
| Cherry |
Eastern Tent Caterpillar |
Look for and prune out black-brown egg masses encircling thin
twigs. |
| Crabapple |
Eastern Tent Caterpillar |
Look for and prune out black-brown egg masses encircling thin
twigs. |
| Elm |
Elm Bark Beetle |
Install pheromone traps. Wait until beetles are caught before
treating. |
| Hardwoods |
Gypsy Moth |
Inspect for egg masses and remove if few in number. |
| Hemlock |
Hemlock Eriophyid Mite |
Inspect upper surface of needles for tiny, white, cigar-shaped
mites. Treat with oil as needed. |
| Maple |
Pear Thrips |
Install yellow sticky traps if a concern. Inspect traps periodically
for tiny yellow-brown thrips. |
| Pine |
European Pine Sawfly |
Look for a series of yellow spots on new needles. Remove infested
needles. |
| |
European Pine Shoot Moth |
Inspect for brown larvae in damaged buds and tips. Treat with
registered insecticide if needed. |
| |
White Pine Aphid |
Look for black eggs on needles. Remove infested needles. Look
for brown nymphs along stems. Check for natural enemies before
deciding to treat. |
| |
White Pine Weevil |
Look for brown weevils on leaders during warm days (above
60°F). Treat with registered insecticide if needed. |
| Various |
Scales
Aphids
Mealybugs
Psyllids
Aphids
Mites |
Inspect for presence of overwintering stages and last season's
damage. Treat with dormant oil as needed. |
