treating box elders

Asked October 5, 2015, 1:20 PM EDT

We have had box elder infestations at our residence in Clackamas County these past several years. We had them sprayed a number of years ago, but the pest control person told us the treatment he used is no longer acceptable. The bugs have significantly returned outside of the house this past two weeks. How can we deal with them?

Clackamas County Oregon

1 Response

I am a forester, so all my information comes from references I found. The immediate options for controlling box elder bugs are to physically remove them with a vacuum cleaner, wash them off of buildings and trees with water. And seal cracks and other places they may gain entry into buildings. It appears that here in Clackamas County, the main host trees used by box elder bugs are maples and ash (we do not have native box elders in abundance). Please review the following references for more details:

http://insect.pnwhandbooks.org/hort/landscape/hosts-and-pests/maple-acer-boxelder-bug

http://oregonstate.edu/dept/kbrec/boxelder-bug

http://entomology.oregonstate.edu/system/files/u1473/Box_Elder_Bug.pdf