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Pest Control for September into October

Pest Control for September into October

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

Andromeda Lacebug (last generation)

Inspect underside of new growth for adults. Treat with Bonide Eight if needed.

Crabapple Eastern Tent Caterpillar

Eastern Tent Caterpillar

Examine branch tips for shiny black egg masses and remove.

Dogwood Dogwood Borer

Dogwood Borer

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

  Dogwood Sawfly

Dogwood Sawfly

Inspect foliage for caterpillars that are covered with a white coating.

Hemlock Hemlock Woolly Adelgid

Hemlock Woolly Adelgid

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

Honeylocust Honeylocust Mite

Honeylocust Mite

Shake branch over white surface. Look for reddish-brown mites and treat with Monterey Garden Insect Spray if needed.

Larch Larch Casebearer

Larch Casebearer

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

Magnolia Magnolia Scale

Magnolia Scale

Inspect twigs for large, brown adult scales and white crawlers. Treat with Bonide Malathion if needed

Pine (soft) White Pine Aphid

White Pine Aphid

Inspect for black eggs on needles. Remove infested needles if few or treat with Espoma Earth Tone Insect Control or All Season’s Spray Oil.

Rhododendron Rhododendron Borer

Rhododendron Borer

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

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