| PLANT |
PEST |
ACTION |
| Andromeda |
Andromeda Lacebug |
Inspect underside of new growth
for nymphs. Treat with registered pesticide if needed. |
| Arborvitae |
Arborvitae Leafminer |
Shake bush and look for tiny white moths. Treat with registered
pesticide if needed. |
| Beech |
Woolly Beech Aphid |
Treat early before natural enemies arrive. |
| Birch |
Aphids |
Check for natural enemies before making treatment decision.
|
| Black Locust |
Locust Leafminer |
Attacks upper leaf surface. Avoid treatment during bloom.
Inspect for yellow and black beetles. |
| Boxwood |
Boxwood Mite |
Inspect for reddish nymphs on underside of leaves. Soaps and
oils may require multiple applications. |
| |
Boxwood Psyllid |
Inspect tips of new growth for waxy nymphs. Treatment
may be too late to prevent damage. |
| Cherry |
Eastern Tent Caterpillar |
Inspect for larvae, webs and plant injury. |
| Crabapple |
Eastern Tent Caterpillar |
Inspect for larvae, webs and plant injury. |
| Dogwood |
Dogwood Borer |
Inspect trunk and large branches for holes and fresh sawdust.
Destroy by hand or treat with nematodes. |
| Euonymus (decidous) |
Euonymus Caterpillar |
Inspect tips for yellow larvae and silk. Young
larvae vulnerable to B.T. or other registered pesticide. |
| Hardwoods |
Cankerworms |
Inspect leaves for holes and larvae. Probably
too late for B.T. Treat with registered pesticide if needed. |
| |
Forest Tent Caterpillar |
Inspect leaves for caterpillars. Probably too
late for B.T. Treat with registered pesticide if needed. |
| |
Gypsy Moth |
Inspect leaves for holes and larvae. Probably
too late for B.T. Treat with registered pesticide if needed.
|
| |
Oystershell Scale |
Look for white crawlers on newest growth.
Treat with registered pesticide if needed. |
| Hemlock |
Hemlock Woolly Adelgid |
Inspect for cottony masses at base of needles. Treat with
registered pesticide if needed.. |
| Lilac |
Lilac Leafminer |
Inspect leaves for hatched larvae. Treat with registered systemic
if needed. |
| Holly |
Holly Leafminer |
Install yellow sticky traps. Inspect traps for small gray
flies. Treat with registered pesticide if needed. |
| Honeylocust |
Honeylocust Plant Bug |
Shake branch over white surface. Look for small green nymphs.
Treat with registered pesticide if needed. |
| Needled Evergreens |
Spruce Spider Mite |
Shake branch over white surface. Look for tiny reddish mites.
Treat with registered pesticide if needed. |
| Pine (Hard) |
European Pine Sawfly |
Inspect needles for dark green larvae. Handpick or treat with
registered pesticide if needed. |
| |
Pine Needle Scale |
Inspect needles for red-orange crawlers. Treat with registered
pesticide if needed. |
| |
White Pine Weevil |
Inspect leaders for holes, sap flow and tip
curl. prune out infested leaders. |
| Pine (Soft) |
Pine Bark Adelgid |
Inspect trunk and branches for white, cottony
masses. Increase vigor, reduce stress. Treat with registered
pesticide. |
| |
White Pine Weevil |
Inspect leaders for holes, sap flow and tip curl.
Prune out infested leaders. |
| Willow |
Imported Willow Leaf Beetle |
Inspect for small bluish-black beetles and black
larvae skeletonizing leaves. Treat with registered pesticide
if needed. |
| Yew |
Taxus Mealybug |
Inspect interior of plants for small mealybugs. Treat with
registered pesticide if needed. |
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