| PEST |
PLANT |
ACTION |
| Andromeda |
Andromeda Lacebug (2nd gen.) |
Inspect underside of new growth for nymphs. Treat
with registered pesticide if needed. |
| Arborvitae |
Arborvitae Leafminer |
Check new growth for mines. Treat with registered
systemic pesticide |
| Azalea |
Azalea Bark Scale |
Inspect twig crotches for white, waxy females,
pinkish eggs and crawlers. Treat with registered pesticide if
needed. |
| Birch |
Bronze Birch Borer |
Inspect for fresh D-shaped emergence holes and
overall health. Treat trunk and branches with registered pesticide
if needed. |
| Black Locust |
Locust Leafminer |
Inspect for creamy white blotches
on leaves. Treat with registered pesticide if needed. |
| Catalpa |
Catalpa Aphid |
Inspect underside of leaves for green-yellow nymphs.
Look for lacewing eggs, ladybugs, and other natural enemies.
|
| Crabapple |
Eastern Tent Caterpillar |
Examine branch tips for shiny black egg masses
and remove. |
| |
Green Peach Aphids |
Check for natural enemies before
making treatment decision. |
| Dogwood |
Dogwood Borer |
Inspect trunk and large branches for
holes and fresh sawdust. Destroy by hand or treat with nematodes.
|
| Elm |
Elm Leaf Beetle |
Install sticky band on trunk or treat
trunk with registered pesticide. |
| |
European Elm Scale |
Check for white crawlers on underside
of leaves. Treat with registered pesticide if needed. |
| Euonymous |
Euonymous Scale |
Treat before the second generation
crawlers wax over |
| Hardwoods |
Cottony Maple Leaf Scale |
Look for white crawlers on underside
of leaves. Treat with registered pesticide if needed. |
| |
European Fruit Lecanium |
Look for white crawlers on underside
of leaves. Treat with registered pesticide if needed. |
| |
Fall Webworm |
Check tip leaves for eggs and larvae.
Prune or treat with B.T. or other registered pesticide. |
| |
Japanese Beetle |
Examine leaves for adults and skeletonizing.
Treat with registered pesticide if needed. |
| |
Two-Spotted Spider Mite |
Strike branch on white surface.
Check for white mites. |
| Holly |
Holly Leafminer |
Check new growth for mines. Treat with registered
systemic pesticide if needed. |
| Honeylocust |
Honeylocust Mite |
Shake branch over white surface. Look for reddish-brown
mites and treat with registered pesticide if needed. |
| |
Mimosa Webworm |
Small, gray-brown larvae webbing
leaflets near tips. Prune out or treat with B.T. or other reg.
pesticide. |
| Linden |
Aphids |
Check foliage for nymphs, honeydew,
and natural enemies before making treatment decision. |
| Pine (Hard) |
Red-headed Pine Sawfly |
Examine needles for clusters of yellow
larvae. Pick off or treat with registered pesticide if needed.
|
| Rhododendron |
Rhododendron Borer |
Inspect large lower branches for holes
and fresh sawdust. Destroy by hand or treat with nematodes. |
| |
Rhododendron Tip Midge |
Check for white maggots inside curled
edges of newest growth.Prune out or treat with registered pesticide
if needed. |
| |
Sharpshooter Leafhopper |
Check new growth for large, green
and orange leafhoppers. Treat with registered pesticide if needed.
|
| Spruce |
Cooley and Eastern Spruce Gall Adelgids
|
Prune out galls before they open. |
| Tulip Poplar |
Aphids |
Check foliage for nymphs, honeydew,
and natural enemies before making treatment decision. |
| Yew |
Black Vine Weevil |
Check burlap traps for adult weevils.
Treat with registered pesticide if needed two weeks after first
captures or when numbers level off. |
| |
Cottony Taxus Scale |
Look for white crawlers on underside
of needles. Treat with registered pesticide if needed. |
| |
Fletcher Scale |
Look for white crawlers on underside
of needles. Treat with registered pesticide if needed. |
