Tree crickets are long, slender insects about ¾ inch in length. They are normally a light greenish color but can also be whitish or brown. They live in trees and feed mainly on smaller insects, such as aphids. If the population explodes, they may also begin to feed on foliage.
In a normal season, the only time that a cricket harms plants is in the fall, when the female bores into twigs to lay her eggs. Twig dieback can occur as a result of the egg laying.
Under normal circumstances no control is needed. To protect valuable plants apply Diatomaceous Earth as needed.