Host Richard Hentschel talks about the impacts of our above normal collection of Growing Degree Days on insect development and uses the Viburnum Leaf Beetle as a typical example. Viburnum Leaf Beetle arrived from Europe some years back and has been a pest in Northeast for several years. More recently, the beetle has been found in Chicagoland. Both larvae and adults of the Viburnum Leaf Beetle cause damage by their feeding and egg laying habits.