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Mustard greens-Cucumber beetle Western spotted cucumber beetle (Diabrotica undecimpunctata) Western striped cucumber beetle (Acalymma trivittatum) Pest description and crop damage The western spotted cucumber beetle is yellowish green, 0.25 inch long, and ...

Mustard greens-Cutworm Includes Black cutworm (Agotis ipsilon) Variegated cutworm (Peridroma saucia) Pest description and crop damage The black cutworm moth is a uniform dark brown with a lighter irregular band near the wing tips and a distinct black dash ...

Mustard greens-Diamondback moth Plutella xylostella Pest description and crop damage Diamondback larvae are smaller than most other caterpillars in cole crops, about 0.31 inch when full grown. The larval body is wider in the middle and tapers at both ends ...

Mustard greens-Flea beetle Includes cabbage flea beetle (Phyllotreta cruciferae) Pest description and crop damage Flea beetle adults are metallic greenish brown to black in color and from 0.06 to 0.12 inch long. They derive their name from their well-deve ...

Mustard greens-Imported cabbageworm Pieris rapae Pest description, crop damage and life history See: Common Pests of Vegetable Crops Pest monitoring The following information is from California but is generally applicable in the Pacific Northwest: Cabbage ...

Mustard greens-Wireworm Limonius spp. Pest description and crop damage Wireworms are the soil-dwelling larvae of click beetles. Adult click beetles are slender, tan to nearly black, and about 0.37 inch long. Larvae are hard, segmented, 0.37 to 0.5 inch lo ...

Onion-Armyworm and cutworm Includes Beet armyworm (Spodoptera exigua) Bertha armyworm (Mamestra configurata) Western yellowstriped armyworm (Spodoptera praefica) Black cutworm (Agotis ipsilon) Variegated cutworm (Peridroma saucia) Pest description, crop d ...

Onion-Brown wheat mite Petrobia latens Pest description and crop damage The brown wheat mite is tiny, dark, and less than 0.03 inch long, with front legs longer than the body. Feeding mottles the leaves, giving them a bronzed, silvery, or (later) scorched ...

Onion-Bulb mite Rhyzoglyphus spp. Pest description and crop damage Bulb mites are shiny, creamy white, bulbous, and about 0.03 inch long. They are generally in clusters, in damaged areas under the root plate of onion bulbs or garlic cloves. They have a wi ...

Onion-Leafminer Includes American serpentine leafminer (Liriomyza trifolii) Pea leafminer (Liriomyza huidobrensis) Pest description and crop damage Adults are small black to gray flies with yellow markings. The body is covered with long, stiff bristles. L ...