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Pest Control for August into September

Pest Control for August into September

The following are the types of plants to inspect, the pest is what kind of pest you will see in your landscape, and the action is what to do when inspecting your landscape. 

 

 

Plant Pest Action
Andromeda

Andromeda Lacebug (last generation)

Inspect underside of new growth for adults. Treat with Bayer Sevin if needed.

Cherry

White Prunicola Scale

Inspect for pale white crawlers on stems and leaves. Last chance to treat with Espoma Earth Tone Insect Control if needed.

Crabapple

Eastern Tent Caterpillar

Examine branch tips for shiny black egg masses and remove.

Dogwood

Dogwood Borer

Inspect trunk and large branches for holes and fresh sawdust. Destroy by hand or treat with nematodes.

 

Dogwood Sawfly

Inspect leaves for clusters of larvae covered in white wax. Pick off infested leaves or treat with All Season’s Spray Oil if needed.

Euonymus

Euonymus Scale

Inspect for red-orange crawlers on stems and leaves. Last chance to treat with All Season’s Spray Oil if needed.

Hardwoods

Fall Webworm

Check tip leaves for eggs and larvae. Prune or treat with Monterey Garden Insect Spray. Too late for Thuricide.

 

Japanese Beetle

Examine leaves for adults and skeletonizing. Treat with Bonide Eight if needed.

 

Two-Spotted Spider Mite

Strike branch on white surface. Check for white mites.

Hemlock

Hemlock Woolly Adelgid

Inspect for masses of white wax at base of needles. Coverage and follow-up vigilance critical.

Honeylocust

Honeylocust Mite

Shake branch over white surface. Look for reddish-brown mites and treat with Bonide Capt. Jack’s Dead Bug if needed.

Larch

Larch Casebearer

Inspect needles for tip browning and young cases. Treat with Thuricide if needed

Oak

Oak Skeletonizer (2nd Gen)

Too late for Thuricide. Larvae vulnerable to Bonide Capt. Jack’s Dead Bug until they begin dropping.

Pine (soft)

White Pine Aphid

Inspect for black eggs on needles. Remove infested needles if few or treat with soap or oil.

Rhododendron

Rhododendron Borer

Inspect large lower branches for holes and fresh sawdust. Destroy by hand or treat with nematodes.

Spruce

Eastern Spruce Gall Adelgid

Inspect green galls at base of new growth. Treat with All Season’s Spray Oil if needed and galls are open.

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