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Potato, Irish-Armyworm and cutworm Includes: Bertha armyworm (Mamestra configurata) Spotted cutworm (Xestia c-nigrum) Pest description and crop damage Several species of moth caterpillars (Order Lepidoptera) of various colors can sometimes be found in pot ...

Potato, Irish-Flea beetle Tobacco flea beetle (Epitrix hirtipennis) Tuber flea beetle (Epitrix tuberis) Western potato flea beetle (Epitrix subcrinata) Pest description and crop damage Three species of flea beetles-the tobacco flea beetle (E. hirtipennis) ...

Potato, Irish-Garden symphylan Scutigerella immaculata Pest description and crop damage The garden symphylan (Myriapoda) is a small, white, centipede-like animal in the soil. This arthropod is a pest of potatoes in isolated pockets in the PNW, especially ...

Potato, Irish-Grasshopper 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 ...

Potato, Irish-Leafhopper Beet leafhopper (Circulifer tenellus) Other leafhoppers (Empoasca spp., Ceratagallia spp.) Pest description and crop damage The most important leafhopper for potato producers in the PNW is the beet leafhopper, due to its ability t ...

Potato, Irish-Leatherjacket Large crane fly (Tipula dorsimacula Walker) Pest description and crop damage Larvae are about 1.5 inches long, gray or gray-brown, and wormlike. The head is retractable into the body, and there are no legs. Larvae are common fr ...

Potato, Irish-Looper Includes Alfalfa looper (Autographa californica) Cabbage looper (Trichoplusia ni) Pest description and crop damage Larvae of both looper species appear as green caterpillars with white longitudinal stripes, three pair of true legs in ...

Potato, Irish-Lygus bug Includes tarnished plant bug (Lygus hesperus, L. elysus, L. keltoni) Pest description and crop damage Adults are less than 0.25 inch long and marked with a "V" shaped or triangular mark on the back. Color ranges from ligh ...

Potato, Irish-Psyllid Potato/tomato psyllid (Bactericera cockerelli) Pest description and crop damage Adult psyllids resemble miniature cicadas, while the immature stages are scale-like and mostly sedentary, much more so than aphids, and look like white f ...

Potato, Irish-Spider mite Twospotted spider mite (Tetranychus urticae) Pest description and crop damage Spider mites are tiny, spider-like animals that produce webs and are generally found on the undersides of leaves. Mite damage in potatoes is a minute s ...