Clover hay-Clover root borer

Hylastinus obscurus

Pest description and crop damage Adults are bark beetles, 0.1 inch long and dark brown. They begin activity as early as March and may disperse from March through August. Larvae are creamy white and burrow within the roots of red clover, causing extensive damage and reducing stand density and life.

Management-chemical control

No insecticides, registered or otherwise, are effective for controlling this pest.