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Clover hay-Looper Includes alfalfa looper (Autographa californica) Pest description and crop damage The adult moth is grayish to light brown. Front wings have a characteristic teardrop mark. Mature larvae are about 1 inch long, light green, with pale head ...

Clover hay-Meadow spittlebug Philaenus spumarius Pest description and crop damage Nymphs are recognized easily by spittle mass. Moderate populations can stunt plants. Management-chemical control malathion (Malathion 5EC) at 0.94 to 1.25 lb ai/A. PHI 0 day ...

Clover hay-Pea leaf weevil Sitona lineata Pest description and crop damage Adults are small, grayish brown, faintly striped weevils about 0.2 inch long. They appear in large numbers in spring and sometimes in late summer. Adult feeding may kill seedling p ...

Clover hay-Slug Pest description and crop damage Primarily a western Oregon and Washington problem. Damage is most critical when establishing a seedling stand. Management-chemical control iron phosphate (Sluggo Maxx) at 1.5 to 5.5 oz product per 1000 sq. ...

Clover hay-Webworm Includes beet webworm (Loxostege sticticalis) Pest description and crop damage Caterpillars vary from light to dark with three white longitudinal stripes and many black and white tubercles. Management-chemical control azadirachtin (Neem ...

Clover hay-Western spotted cucumber beetle Diabrotica undecimpunctata Pest description and crop damage Yellowish green, black-spotted beetle, common in western Oregon and Washington. Adults feed on seedlings and can kill plants and reduce stands. Manageme ...

Pasture and grass hay-Armyworm and cutworm Many species, including: Armyworm (Pseudaletia unipuncta) Army cutworm (Chorizagrotis auxillaris) Black cutworm (Agrotis ipsilon) Glassy cutworm (Apamea devastator) [No common name] (Protagrotis obscura) Pest des ...

Pasture and grass hay-Black grass bug Labops hesperius and other Labops spp. Irbisia pacifica and other Irbisia spp. Pest description and crop damage Insect is grayish black with silvery scales, about 0.25 inch long, and somewhat pear-shaped. Adults have ...

Pasture and grass hay-Cereal leaf beetle Oulema melanopus Pest description and crop damage Adults are 0.25 inch long with a brightly colored, orange-red thorax, yellow legs, and metallic-blue head and elytra (forewings). This is a quarantine pest, and alt ...

Pasture and grass hay-Clover and winter grain mite Clover mite (Bryobia praetiosa) Winter grain mite (Penthaleus major) Pest description and crop damage Clover mite is light brown; winter grain mite is blue with red legs. These cool-season mites have caus ...