Pest Activity -- June 2 , 2006

Pest Activity > \may 19

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 May 31, the following growing degree days with a base temperature of 50 degrees have accumulated.

Uniontown
New Stanton	566
Pittsburgh	580
Wexford
Butler	216

Pest Activity

Azalea Lace Bug

	Nymphs are actively feeding on the undersides of azalea leaves at this time.
Fact Sheet

Bagworm

	Bagworms have hatched in the city of Pittsburgh and should be emerging shortly in surrounding areas. It is best to wait two weeks after first egg hatch, allowing the majority of eggs to hatch , before applying control measures. B.T. or Bacillus thuringiensis gives excellent control when larvae are small.
Fact Sheet

Boxwood Psyllid

	The adult stage of boxwood psyllid is present on boxwoods in the city of Pittsburgh.
Fact Sheet

Calico Scale

	Adult female Calico scales are filled with pink 1st instar nymphs about to start migrating to the leaves where they feed during the summer months.
Fact Sheet

Euonymus Scale

	Crawlers in the city of Pittsburgh are dispersing and starting to settle.
Fact Sheet

 

Fourlined Plant Bug

	Adults are present in the landscape at this time.
Fact Sheet

Honeylocust Plant Bug

	In some areas, heavy populations of honeylocust plant bug have caused early defoliation of developing honeylocust leaves, giving the appearance that the plant has not leafed out. Later instar nymphs were present last week and adults should be out shortly.
Fact Sheet

Pine Needle Scale

	Crawlers are active in the city of Pittsburgh and surrounding areas.
Fact Sheet

Pine Spittlebug

	Nymphs are present in the landscape at this time.
Fact Sheet

White Vine Weevil

	Larvae are currently feeding in the terminals of white pine and oriental spruce at this time.
Fact Sheet

Other Insects

	Privet rust mites are active at this time, causing the leaves of privet to look dull and off color. This is an eriophyid mite.   Control Options

 

The next scouting report will be on June 9 .