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 | |
Arborvitae |
Tiny silver- white moths fly when branch is shaken. Treat with Monterey Garden Insect Spray if needed. |
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Birch |
Check for natural enemies before making treatment decision. If there are no natural enemies use Bayer Sevin. |
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Treat only with Bonide Capt. Jack’s Dead Bug if 1st generation damage was severe to protect new growth |
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Boxwood |
Boxwood Leafminer |
Check yellow traps for adult flies, look for leaf spots with brown pupae protruding from the underside. Treat with Bonide Borer-Miner Killer if detected. |
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Cherry |
White Prunicola Scale |
Treat with All Season’s Spray Oil before crawlers wax over. |
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Crabapple |
Green Peach Aphids |
Check for natural enemies before making treatment decision. If there are no natural enemies use Bonide Eight. |
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Dogwood |
Inspect trunk and large branches for holes and fresh sawdust Destroy by hand or treat with nematodes. |
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Euonymus |
Euonymus Scale |
Treat with All Season’s Spray Oil before crawlers wax over. |
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Hardwoods |
Polydrusus Weevil |
Check for notching along leaf margins and shiny metallic green-bronze weevil. Treat with Bonide System Insect Control if needed |
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Hemlock |
Hemlock Looper |
Shake branches, look for green inchworms dropping on silk threads. Treat with Thuricide if needed |
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Holly |
Cottony Camellia Scale |
Inspect foliage and stems for large , white waxy scales and new crawlers. |
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Juniper |
Juniper Scale |
Treat with Espoma Earth Tone Insect Control before crawlers wax over. |
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Linden |
Linden Bark Moth |
Examine trunk and branches for holes, reddish frass and small moths. Treat with Bonide Capt. Jack’s Dead Bug if needed. |
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Mountainash |
Mountainash Sawfly |
Examine leaflets in shadiest areas for clusters of yellow-green larvae. Pick off or treat with Bonide Capt. Jack’s Dead Bug if needed. |
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Oak (Red Group) |
Oak Skeletonizer |
Examine leaves for lacy skeletonizing and small green larvae. Treat with Bonide Eight if needed. |
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Pine (Soft) |
White Pine Weevil |
Inspect leaders flagging. Prune out infested leaders before they turn brown. |
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Rhododendron |
Inspect for male moths. Inspect large lower branches for holes and fresh sawdust. |
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Yew |
Check burlap traps for adult weevils. Treat with Bonide System Insect Control if needed two weeks after first captures |