Pest Activity -- April 28, 2006

Pest Activity > April 28, 2006

Welcome to the Woody Ornamental Pest Scouting Report for Western Pennsylvania brought to you by Penn State Cooperative Extension. This report is 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 26, the following growing degree days with a base temperature of 50 degrees have accumulated.

Uniontown	170
New Stanton	174
Pittsburgh	194
Wexford
Butler	95

Pest Activity

Azalea Lace Bug

	Azalea Lace Bug eggs have started to hatch in the City of Pittsburgh.
Fact Sheet

Birch Leafminer

	Birch Leafminer adults were spotted on the leaves of birch in Sewickley this past week.
Fact Sheet

Boxwood Psyllid

	Boxwood psyllids remain in the nymph stage at various locations in the City of Pittsburgh.
Fact Sheet

Eastern Tent Caterpillar

	Tents observed in the Wexford area are 5"-7" across and the caterpillars are 3/8" - 1/2" long. The insecticide B.T. is very effective against this life stage.
Fact Sheet

European Sawfly

	Larvae observed in Westmoreland county this week were 1/4" long.
Fact Sheet

Hemlock Rust Mite

	Hemlock Rust mite, remain active on hemlocks at this time in southwest Pennsylvania
Fact Sheet

Honeylocust Plant Bug

	Young honeylocust plant bug nymphs continue to feed on honeylocust in the city of Pittsburgh..
Fact Sheet

Inkberry Leafminer

	Adults were observed on Ilex glabra or Inkberry in Westmoreland County.
Fact Sheet

Spruce Spider Mites

	Egg hatch has occured and these spider mites were observed on firs in the Wexford area this past week.
Fact Sheet

Hawthorn Leafminer

Adult Hawthorn Leafminers were observed this week on Crataegus crusgalli, Cockspur Hawthorn in the City of Pittsburgh.

 

Imported Willow Leaf Beetle

Adult Imported Willow Leaf Beetles were feeding on willows in Sewickley this past week. This is generally considered a nuisance pest.

 

The next scouting report will be on May 5 .