||European pine sawfly
||Colonies can cause serious defoliation on red, Scotch, and mugo pine.
||Yellow or brown tips on arborvitae indicate the presence.
||Caterpillars are only 1/5 inch long when full grown.
||They are so small that they can feed and complete their development inside the narrow arborvitae leaves.
||black vine weevil
||The black vine weevil is also called the taxus weevil.
||redheaded pine sawfly
||Sawflies can be distinguished from caterpillars by counting the number of fleshy prolegs they have. Caterpillars have five pairs or less; sawflies six pairs or more. The bright red heads easily identify this pest as the redheaded pine sawfly.
||The caterpillar will be four inches long when full grown.
||Bagworms hide themselves in silken bags covered with bits of their food plant.
||The caterpillar inside exposes only his head and front legs as it moves and feeds carrying its bag-like house with it.