Endangered species

Wednesday, Mar. 7, 2012 WSU News

Commonly used herbicides seen as threat to butterflies

PUYALLUP, Wash. – A Washington State University toxicologist has found that three commonly used herbicides can dramatically reduce butterfly populations.

The research was aimed at possible effects on the Lange’s metalmark, an endangered species in northern California. But it has implications for other at-risk and endangered butterflies wherever herbicides are used, says John Stark, an ecotoxicologist and director of the WSU Puyallup Research and Extension Center. read full article