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New England Pest Monitoring and Management Checklist Number 12
Late June - Early July
800 - 999 GROWING DEGREE DAYS

BEGIN BLOOM
Koelreuteria paniculata (goldenraintree)
Rhus typhina (sumac)

FULL BLOOM
Lythrum salicaria (loosestrife)
Sambucus canadensis (elderberry)

END BLOOM
Ligustrum spp. (privet)
Syringa reticulata (Japanese tree lilac)
Weigela florida

PLANT PEST ACTION
Andromeda Andromeda Lacebug (2nd gen.) Inspect underside of new growth for nymphs. Treat with registered pesticide if needed.
Azalea Azalea Bark Scale Inspect twig crotches for white, waxy females, pinkish eggs and crawlers. Treat with registered pesticide if needed.
Birch Aphids Check for natural enemies before making treatment decision.
Catalpa Catalpa Aphid Inspect underside of leaves for green-yellow nymphs. Look for lacewing eggs, ladybugs, and other natural enemies.
Crabapple Eastern Tent Caterpillar Examine branch tips for shiny black egg masses and remove.
  Green Peach Aphids

Check for natural enemies before making treatment decision.

Dogwood Dogwood Borer Inspect trunk and large branches for holes and fresh sawdust. Destroy by hand or treat with nematodes.
Evergreens Cottony Taxus Scale Look for white crawlers on underside of leaves or needles. Treat with registered pesticide if needed.
Hardwoods Cottony Maple Leaf Scale Look for white crawlers on underside of leaves. Treat with registered pesticide if needed.
  Japanese Beetle Examine leaves for adults and skeletonizing. Treat with registered pesticide if needed.
Holly Cottony Camellia Scale Inspect foliage and stems for large, white, waxy scales
Honeylocust Honeylocust Mite Shake branch over white surface. Look for reddish-brown mites and treat with registered pesticide if needed.
Oak Oak Sawflies Examine leaves for green, slug-like, larvae. Treat with registered pesticide if needed.
Pine (Hard) Red-headed Pine Sawfly Examine needles for clusters of yellow larvae. Pick off or treat with registered pesticide if needed.
Pine (Soft) Introduced Pine Sawfly Inspect needles for grey-green larvae. Pick off or treat with registered pesticide if needed.
Rhododendron Rhododendron Borer Inspect large lower branches for holes and fresh sawdust. Destroy by hand or treat with nematodes.
Yew Black Vine Weevil Check burlap traps for adult weevils. Treat with registered pesticide if needed two weeks after first captures.

END: Arborvitae Leafminer, Elm Leaf Beetle, Euonymus Scale, Hemlock Looper, Juniper Scale, Mt. Ash Sawfly, White Pine Weevil, White Prunicola Scale

800-999 GDD
Late June-Early July

Additional Information:
Bacillus thuringiensis (B.t.)
Beneficial Nematodes
Bio-Rational Pesticides
Current Growing Degree Day Accumulations
Filing a School IPM Plan in Massachusetts Adobe PDF icon
Fundamentals of An Insect and Mite IPM Program
Horticultural Oils
Managing Insects Using Superior or Horticultural Oils
Monitoring: Growing Degree Days and Plant Phenology
Monitoring and Management Checklists
New Insect Products and How They Work

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