Pest Activity -- March 28, 2003

Pest Activity > Pest Activity Archives > March 28, 2003

Welcome to the Woody Ornamental Pest Scouting Report for Western Pennsylvania for March 28, 2003, 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 March 26, the following growing degree days with a base temperature of 50 degrees have accumulated:

Uniontown	113	Franklin
New Stanton	56	Meadville	34
Pittsburgh	62	Erie	25
Wexford	45	Mercer	51
Prospect	24	Harbor Creek	21

New or Recent Activity:

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

Overwintering Cooley Spruce Gall Adelgids on Douglas-fir in Westmoreland County have experienced minimal development since last week. The insect is just beginning to produce the white waxy strands that make pesticide controls less effective. Please check the Penn State Woody Ornamental Insect, Mite, and Disease Management Guide for registered control materials.

Evidence of feeding on the terminals of Eastern White Pines was spotted in Westmoreland County this past week. Nurseries or landscapes with a previous history of White Pine Weevil problems should be scouting Eastern White Pine, Norway Spruce, Oriental Spruce, and Colorado Blue Spruce at this time looking for evidence of recent feeding. Control materials should be directed to the top of the tree if feeding injury is present.

The next scouting report will be on Friday, April 4.