Regional Bioagent Project

Request Bioagents For Your Property 

Bioagent Flyer 

If you have a sizeable weed infestation on your property, one acre or more, it may be possible to use biological agents. Eradicate smaller patches through other means. There are biological agents available for a diversity of non-native weeds. Some noxious weeds commonly found throughout the area which biological agents are available are St. Johnswort, Diffuse & Spotted knapweed, Dalmatian and Yellow toadflax, Canada and Musk thistle.

Potential areas for bioagent release should be free of vehicular traffic and insecticide use. The presence of livestock is fine. If we release on your property, we ask that representatives of the Regional Integrated Weed Control Project be able to enter the site for approximately seven years. It will be necessary to monitor the sites to see if the insects are able to establish. If they do establish and the population becomes high enough, then we will collect for further redistributions. If you are interested in biocontrol for your property, please fill out the form located at the top of this page and return it to the WSU Ferry County Extension office.

Additional Insect Released on St. Johnswort 

Houndstongue Insect Spreads

Comment from Land Owner

"Hi there, Several years ago our neighbors got some knapweed bugs from your program. They migrated onto our property and we have seen some amazing results. Our fields were about 50% knapweeds. This spring, for the first time, we have about only 1% knapweed in our fields. Those bugs are great! This is all bug control, we never spray any chemicals on our property. Now I go out and collect the bugs and give them to neighbors that live farther away. So far I've collected over 100 bugs. Thanks a bunch. ~ One happy land owner".