Silken Nests Of The Fall Webworm On A Tree At The Edge Of Grand Lake In The State Of Oklahoma. Stock Photo

Pictured are silken nests of the fall webworm on a tree at the edge of Grand Lake in the state of Oklahoma. The fall webworm Hyphantria cunea is a moth in the family Erebidae known principally for its larval stage, which creates the characteristic webbed nests on the tree limbs of a wide variety of hardwoods in the late summer and fall. It is considered a pest but although unsightly, does not harm otherwise healthy trees.