Skip to main content Skip to navigation

Coronavirus COVID-19

COVID-19 Advisory: WSU Extension is working to keep our communities safe. All Extension programming is being provided virtually, postponed, or canceled. Effective March 16, 2020, WSU Extension county offices and WSU Research & Extension Centers will be closed to the public. We are available via email, phone, and webconference.

Tent Caterpillar

Posted by asabins | June 30, 2016

There are two species of tent caterpillars that can be found in Washington. The western tent caterpillar is most commonly found in western Washington. It attacks a wide range of hosts including apple, peach, plum, cherry, pear, wild rose, poplar and willow. The forest tent caterpillar is the other species found in Washington. It is approximately 2″ long and has a bluish body with black and white markings. Its silk mats are found on branches and trunks. It prefers maple but will also feed on the foliage of most types of fruit trees.

Informational PDFs