They hatch in 2 weeks. Lasts for 3 weeks. Larvae feed on grass roots.
Adults feed on flowers, leaves, fruit and vegetables.
Especially Apples, Blackberries, Brambles, Cherries, Grapes, Pears, Raspberries, Strawberries, Beans, Beets, Cabbage, Corn, Peppers, Dahlias, Hydrangeas, Hollyhocks, Irises, Peonies, Roses, Zinnias. Chewed leaves and flowers. Shake beetles from plants onto a cloth and drown them in soapy water. Use Sevin or Methoxychlor to control the beetles or Diazinon or Lawn Insect Control in the soil to control the grubs. When using pesticides always read the entire label on the container and follow the directions.