Pest Activity -- April 25, 2003

Pest Activity > Pest Activity Archives > April 25, 2003

Welcome to the Woody Ornamental Pest Scouting Report for Western Pennsylvania for April 25 brought to you by Penn State Cooperative Extension.This message will be updated weekly with growing degree day counts and insect activity through the end of June. If you would like an email copy of this report, send your request to mcm2@psu.edu .

As of April 13, the following growing degree days with a base temperature of 50 degrees have accumulated:

Uniontown	359	Franklin
New Stanton	211	Meadville
Pittsburgh	225	Erie
Wexford	165	Mercer
Prospect	70	Harbor Creek

Boxwood Psyllid

Boxwood Psyllid nymphs were observed this past week in the City of Pittsburgh. The feeding activity of this pest causes the cupping of the terminal leaves on boxwoods and treatment should be applied now before the nymphs become adults.

Pine Spittlebugs

Pine Spittlebugs have hatched on Eastern White Pines in Westmoreland County this past week.

Honeylocust Spider Mites

Honeylocust Spider Mites were observed on honeylocusts in Westmoreland County this past week.

Eastern Tent Caterpillars

Eastern Tent Caterpillars tents are 4-6 inches in length and the early instar larvae are 1/2" long.

Hemlock Rust Mites

Hemlock Rust Mites remain active in Southwestern Pennsylvania at this time.

Cooley Spruce Gall Adelgids

Cooley Spruce Gall Adelgids in Westmoreland County are completely coveredwith white waxy strands closing the window for control for this insect until the fall.

White Pine Weevils

White Pine Weevils in Westmoreland County have laid eggs, but none have hatched at this time.

European Pine Sawfly

European Pine Sawfly larvae in Westmoreland and Allegheny counties are 3/8" in length at this time.

Spruce Spider Mites

Spruce Spider Mites found on Canadian Hemlock in the City of Pittsburgh have hatched.

Inkberry Leafminers

Inkberry Leafminers adults have not emerged yet but should be very soon.

The next scouting report will be on Friday, May 2.