Insect Management Handbook

Includes

Alfalfa looper (Autographa californica)
Cabbage looper (Trichoplusia ni)

Large crane fly (Tipula dorsimacula Walker)

Beet leafhopper (Circulifer tenellus)
Other leafhoppers (Empoasca spp., Ceratagallia spp.)

Includes

Spotted winged grasshopper (Orphulella pelidna)

Pest description and crop damage Many different grasshopper species live in areas near or where potatoes are grown, and most of these could occasionally feed on potatoes. A similar insect that sometimes invades and damages potato fields is the Mormon cricket (Anabrus simplex), which is actually a flightless katydid.

Scutigerella immaculata

Tobacco flea beetle (Epitrix hirtipennis)
Tuber flea beetle (Epitrix tuberis)
Western potato flea beetle (Epitrix subcrinata)

Western spotted cucumber beetle (Diabrotica undecimpunctata)

Pest description and crop damage Larvae may feed on tubers in potato fields west of the Cascade Mountains. Adults are 0.33 inches long, yellowish green, with distinct black spots on the wing covers. Mature larvae are about 0.33 inches long and white with brown on both ends. Adults feed on leaves and stems.

Management-chemical control: HOME USE

Leptinotarsa decemlineata

Includes

Epicauta spp.

Includes:

Bertha armyworm (Mamestra configurata)
Spotted cutworm (Xestia c-nigrum)