Pest Control for Mid-May
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 |  |
Shake bush and look for tiny white moths. This species makes small cocoons on the foliage. |
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| Beech |  |
Woolly Beech Aphid |
Treat early before natural enemies arrive. Inspect leaf undersides. Pest produces quantities of honeydew. |
| Birch |  |
Check for natural enemies before making treatment decision. Consult Nursery Staff for natural enemies. |
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Inspect leaves for hatched larvae (new mines). |
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| Boxwood |  |
Inspect for reddish nymphs on underside of leaves. |
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Inspect tips of new growth for waxy nymphs and cupped foliage. |
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| Cherry |  |
Inspect for larvae, webs and plant injury.
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| Crabapple | |||
| Dogwood |  |
Inspect trunk and large branches for holes and fresh sawdust. Destroy by hand or treat with .nematodes. |
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| Euonymus (deciduous) |  |
Euonymus Caterpillar |
Inspect tips for yellow larvae and silk. Young larvae vulnerable to Thuricide. or Monterey Garden Insect Spray. |
| Hardwoods |  |
Inspect leaves for holes and looper larvae. Young larvae vulnerable to Thuricide or Bonide Capt. Jack’s Dead Bug. |
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Forest Tent Caterpillar |
Inspect leaves for caterpillars. Young larvae vulnerable to Thuricide. Treat with Bonide Capt. Jack’s Dead Bug if needed. |
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Gypsy Moth |
Inspect leaves for holes and larvae. Young larvae vulnerable to Thuricide or Monterey Garden Insect Spay. |
| Hemlock
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Inspect for cottony masses at base of needles and crawlers on twigs. Treat with BioNeem. |
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| Inkberry |  |
Inkberry Leafminer |
Check yellow traps for small gray flies and treat if needed with Monterey Garden Insect Spray. |
| Lilac |  |
Lilac Borer |
Inspect trunk and large branches for holes and fresh sawdust. Destroy by hand or treat with nematodes. |
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Lilac Leafminer |
Inspect leaves for hatched larvae. Treat with Bonide Borer-Miner Killer if needed. |
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| Holly |  |
Native Holly Leafminer |
Install yellow sticky traps. Inspect traps for small gray flies. Treat with Bonide Borer-Miner Killer if needed. |
| Honeylocust |  |
Honeylocust Pod Gall Midge |
Install yellow sticky traps. Inspect traps for small orange flies. Treat with registered pesticide if needed. |
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Spruce Spider Mite |
Shake branch over white surface. Look for tiny reddish mites. Treat with Bonide Mite-X if needed. |
| Pine |  |
European Pine Sawfly |
Inspect needles for dark green larvae. Handpick or treat with Bonide Capt. Jack’s Dead Bug if needed. |
| & Pine (Soft) |  |
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 Espoma Earth Tone Insect Control. |
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Pine Spittlebug |
Inspect for spittle masses along branch tips. Ignore, remove by hand or treat with Garden Tech’s Sevin. |
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| Willow |  |
Imported Willow Leaf Beetle |
Inspect for small bluish-black beetles and black larvae skeletonizing leaves. Treat with Monterey Garden Insect Spray if needed |
| Yew |  |
Taxus Mealybug |
Inspect interior of plants for small mealbugs. Treat with Bonide Malathion if needed. |
| Turf |  |
Black Turfgrass Ataenius |
Begin sampling for larvae. Treat with Bayer Advanced Powerforce if needed. |
