Richmond (WFVA) -- Virginia forestry officials report widespread damage to oaks and other trees from this year's arrival of cicadas. The Virginia Department of Forestry says the damage is the result of cicada females laying eggs in the thin-barked outer branches of trees and shrubs. The females slice into the branch, then deposit up to 80 eggs. Forestry officials say most medium to large trees will not suffer any serious long-term damage. The department says an outbreak of this brood of cicada won't occur for 17 years.