Willow
Imported Willow Leaf Beetle: Look for 2nd Generation Larvae
Second generation larvae of the imported willow leaf beetles (Plagiodera versicolora) are munching the leaves of wild and cultivated willows in southwest Ohio. This native of northern Europe was first found in the U.S. in 1915. Since that time, it has become well established throughout most of the eastern and Midwestern states. This beetle has a history of periodically achieving population outbreak densities and causing significant defoliation of its namesake host in Ohio.
...
Willow Woes
First generation imported willow leaf beetles (Plagiodera versicolora) are munching the leaves of wild and cultivated willows in southwest Ohio. This native of northern Europe was first found in the U.S. in 1915. Since that time, it has become well established throughout most of the eastern and Midwestern states. Although it has been a number of years since a significant outbreak has been reported in Ohio, this beetle has a history of periodically achieving population outbreak densities and causing significant defoliation of its namesake host.
...