April 2023
For the biologist/entomologist among us…
Leptoglossus occidentalis Heidemann; Family: Coreiae
Western Conifer Seed Bugs;
- Are nuisance (non-destructive) pest that will not bite or sting.
- Are approximately ¾” in length and is a dull brown in color
- Moved into the New England region around 1990
- Initially identified in California around 1910
- In the spring and summer months, Conifer Bugs live in nearby coniferous trees such as Douglas firs, arborvitaes and hemlocks, red, white and Scotch pine trees.
- Seek the warmth of buildings in the early fall to be protected from the winter.
- Give off a pungent odor when handled, startled or touched
- unpleasant, acrid, citrusy smell
Conifer Bug Management
- Make sure that windows are closed and screens are in place.
- Report any broken or damaged screens to the Facilities Service Center
- servicectr@amherst.edu or (413) 542-2254
- As a temporary measure, tape over openings in screens or around windows
- There are no known pesticides specifically identified to control this particular bug.
- To remove the bug(s) from your room, we suggest one of the following;
- Capture bug(s) in a container and release them outdoors, or
- Vacuum the bug(s) and dispose of vacuum cleaner bag into exterior trash container or dumpster
- Do not step on or otherwise handle / squish the conifer bug, as it will release the distasteful odor that will persist for some time
- Report any broken or damaged screens to the Facilities Service Center
Questions or Concerns
- Contact Environmental Health and Safety at ehs@amherst.edu , or Facilities - Service Center at servicectr@amherst.edu
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western conifer seed bug