Insect Management Handbook

Enarmonia formosana

Choreutis pariana

Image related to Crabapple, flowering (Malus)-Apple-and-thorn skeletonizer

Includes
Apple aphid (Aphis pomi)
Spirea aphid (Aphis spiraecola)

Forest tent caterpillar (Malacosoma disstria)
Western tent caterpillar (Malacosoma californica)

Leucoma salicis

Pest description and damage The adult moth (over 1-inch wingspan) is satiny white with black markings on the legs. The attractive caterpillars are approximately 2 inches long when grown and reddish brown with double white dorsal patches and tufts of hairs along the sides. They can seriously skeletonize then defoliate cottonwood, poplar, and willow. They occasionally attack other hosts.

For biology, life history, monitoring and management

Image related to Cottonwood (Populus)-Satin moth

Hyphantria cunea

Image related to Cottonwood (Populus)-Fall webworm

Prionoxystus robiniae

Acanthococcus (Eriococcus) azaleae

Image related to Cottonwood (Populus)-Azalea bark scale

Includes

Poplar petiole gall aphid (Pemphigus populitransversus)
Pemphigus populicaulis

Includes twospotted spider mite (Tetranychus urticae) and others

Image related to Cotoneaster (Cotoneaster)-Spider mite