> "As a result, farmers increased glyphosate use while reducing the use of other herbicides," Swinton noted. "This became particularly concerning for monarch bu

> "As a result, farmers increased glyphosate use while reducing the use of other herbicides," Swinton noted. "This became particularly concerning for monarch butterflies since their host plants are strongly associated with row crops and their numbers began a sharp decline during the period of glyphosate adoption." It kills the plants where insects happen to live and breed.