what is this tiny bug.

Asked June 21, 2018, 10:50 PM EDT

they fly and we first saw them around the front door outside. they are quickly multiplying

Washington elm seed bugs bug identification

1 Response

Dear Client,

The insect in your digital image is an elm seed bug, Arocatus melanocephalus. This is a relatively new invasive insect pest found in a number of states in the Pacific Northwest. This is not a crop pest, but considered to be a nuisance pest that invades households, particularly in late summer, early autumn to seek shelter from winter weather.

The plant host is primarily elm trees- Chinese or Siberian elms that grow like weeds in the Central WA state. The best management strategy would be to remove the host plant. The next strategy would be to find out how the bugs get into the home and seal, screen or otherwise keep them out of the house.

For more info on elm seed bug:

https://www.tri-cityherald.com/latest-news/article32206338.html

https://pnwhandbooks.org/insect/emerging-pacific-northwest-ornamentals (scroll down on this website)


Hope this helps!