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Pest Control for May to June

Pest Control for May to June

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

Inspect underside of new growth for nymphs. Treat with K+ Neem Oil if needed.

Arborvitae Arborvitae Leafminer

Arborvitae Leafminer

Shake bush and look for tiny white moths. Treat with Monterey Garden Insect Spray if needed.

Beech Woolly Beech Aphid

Woolly Beech Aphid

Treat early before natural enemies arrive with Garden Tech’s Sevin.

Birch Typical Aphid shape

Aphids

Check for natural enemies before making treatment decision.

Boxwood Boxwood Mite

Boxwood Mite

Inspect for reddish nymphs on underside of leaves. Insecticidal Soaps and Horticultural Oils may require multiple applications.

  Boxwood Psyllid

Boxwood Psyllids

Inspect tips of new growth for waxy nymphs. Treatment may be too late to prevent damage.

Cherry Eastern Tent Caterpillar

Eastern Tent Caterpillar

Inspect for larvae, webs and plant injury.

Crabapple
Dogwood Dogwood Borer

Dogwood Borer

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

Euonymus Euonymus caterpillar

Euonymus Caterpillar

Inspect tips for yellow larvae and silk. Young larvae vulnerable to Thuricide or Bonide Capt. Jack’s Dead Bug pesticide.

Hardwoods Cankerworms

Cankerworms

Inspect leaves for holes and larvae. Probably too late for Thuricide. Treat with Monterey Garden Insect Spray if needed.

Forest Tent Caterpillar

Forest Tent Caterpillar

Inspect leaves for caterpillars. Probably too late for Thuricide. Treat with Monterey Garden Insect Spray if needed.

Gypsy Moth

Gypsy Moth

Inspect leaves for holes and larvae. Probably too late for Thuricide. Treat with Bonide Capt. Jack’s Dead Bug if needed.

Oystershell Scale

Oystershell Scale

Look for white crawlers on newest growth. Treat with All Season’s Spray Oil if needed.

Hemlock Hemlock Woolly Adelgid

Hemlock Woolly Adelgid

Inspect for cottony masses at base of needles. Treat with All Season’s Spray Oil if needed..

Lilac Lilac Leafminer

Lilac Leafminer

Inspect leaves for hatched larvae. Treat with Bonide Borer-Miner Killer if needed.

Holly Native Holly Leafminer

Holly Leafminer

Install yellow sticky traps. Inspect traps for small gray flies. Monterey Garden Insect Spray if needed.

Honeylocust Honeylocust Plant Bug

Honeylocust Plant Bug

Shake branch over white surface. Look for small green nymphs. Treat with Bonide Eight if needed.

  Spruce Spider Mite

Spruce Spider Mite

Shake branch over white surface. Look for tiny reddish mites. Treat with Bonide Malathion if needed.

Pine European Pine Sawfly

European Pine Sawfly

Inspect needles for dark green larvae. Handpick or treat with Monterey Garden Insect Spray if needed.

Pine Needle Scale

Pine Needle Scale

Inspect needles for red-orange crawlers. Treat with Espoma Earth Tone Insect Control if needed.

& Pine (Soft) White Pine Weevil

White Pine Weevil

Inspect leaders for holes, sap flow and tip curl. prune out infested leaders.

Pine (Soft) Pine Bark Adelgid

Pine Bark Adelgid

Inspect trunk and branches for white, cottony masses. Increase vigor, reduce stress. Treat with All Season’s Spray Oil.

Willow Imported Willow Leaf Beetle

Imported Willow Leaf Beetle

Inspect for small bluish-black beetles and black larvae skeletonizing leaves. Treat with All Season’s Spray Oil if needed.

Yew Taxus Mealybug

Taxus Mealybug

Inspect interior of plants for small mealybugs. Treat with Bonide Eight if needed.

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