Here in the Midwest, we expect the 17 year Cicadas to appear around Mid-May and extend to mid June. They like young fruit trees for laying their eggs by slitting the bark. They can severly weaken a tree and leave it open for infection. Larger trees may not be bothered by them. The solutions I have seen are mostly recommending covering the young trees with a fabric cloth or possibly using Surround. I don't like either of these two ideas, so if someone knows of a better solution, please let me know.
Sherwin D.