Pest Activity -- May 12
Pest Activity
> May 12
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 10,
the following growing degree days with a base temperature of 50 degrees
have accumulated.
| Uniontown |
236 |
|
|
| New Stanton |
352 |
|
|
| Pittsburgh |
367 |
|
|
| Wexford |
|
|
|
| Butler |
149 |
|
|
Pest Activity
Azalea Lace Bug
 |
Azalea Lace Bug nymphs remain active in the City of Pittsburgh. |
Fact
Sheet
|
Birch Leafminer
 |
Mines continue to expand for the larvae of first generation birch leafminers. |
Fact
Sheet
|
Boxwood Psyllid
Calico Scale
 |
While I didn't get a chance to look for Calico Scale crawlers this week, they should be starting to emerge fairly soon. |
Fact
Sheet
|
Euonymus Scale
 |
The crawlers were just starting to emerge on Wednesday in the city of Pittsburgh. They were still located on the twigs of Euonymus europaeus (Common Spindle Tree) and have not moved to the new foliage yet. |
Fact
Sheet
|
European Sawfly
 |
The larvae are 3/4" long and feeding at this time. |
Fact
Sheet
|
Fourlined Plant Bug
 |
Observed on a wide variety of perennials as well as on woody shrubs this week. Nymphs were found feeding on Viburnum nudum this past week. |
Fact
Sheet
|
Hemlock Rust Mite
 |
Currently active on hemlock at this time. |
Fact
Sheet
|
Honeylocust Plant Bug
 |
Nymphs are actively feeding on foliage at this time. |
Fact
Sheet
|
Native Holly Leafminer
 |
Adults were not observed yet, but should be emerging fairly soon. |
Fact
Sheet
|
Pine Needle Scale
 |
A few crawlers were just starting to emerge this past week. |
Fact
Sheet
|
Pine Spittlebug
Spruce Spider Mites
 |
Actively feeding on a number of conifers at this time. |
Fact
Sheet
|
The next scouting report will be on May 19 .
