Peppers Pest Management Guidelines
UC agricultural management guidelines for control of pepper pests. Peppers Weed Photo Gallery, with Common and Scientific Names (8/07) Alfalfa Mosaic Virus (6/08) Bacterial Spot (8/07) Cucumovirus Mosaic Diseases (6/08) Pepper Potyvirus Mosaic ... [... more]
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Pathogen: Verticillium dahliae
Verticillium dahliae can infect pepper plants at any growth stage. Symptoms include yellowing and drooping of leaves on a few branches or on the entire plant. The edges of the leaves roll inward on infected plants, and foliar wilting ensues. The ... [... more]
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Pepper Tobamovirus Diseases
UC Management Guidelines for Pepper Tobamovirus Diseases on Peppers. Symptoms on plants infected with Tobacco mosaic tobamoviruses vary among cultivars and with specific viruses or strains. Symptoms can include necrosis on any plant part, ... [... more]
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Bacterial Spot
Bacterial spot appears as spots that form on leaves, stems, and fruit. Leaf spots first appear as small, angular spots on the undersurface of the leaf. The spots, which are about 0.25 inch in diameter, are initially watersoaked and later turn ... [... more]
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Scientific name: Spodoptera exigua
Adult beet armyworms are small, mottled-gray or dusky-winged moths. Females lay eggs in clusters on leaves; the clusters are covered with fluffy, dirty white scales. Eggs hatch in a few days and tiny caterpillars begin feeding while still ... [... more]
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Scientific name: Platynota stultana
UC Management Guidelines for Omnivorous Leafroller on Peppers. Omnivorous leafroller adults are small brown moths, about 0.4 inch (10 mm) long, with a snoutlike projection (palpae) that protrudes forward from the head. The portion of the wings ... [... more]
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Twospotted Spider Mite
UC Management Guidelines for Twospotted Spider Mite on Peppers. Eggs of the twospotted spider mite are round, clear, and colorless when laid, but become pearly white when ready to hatch. Nymphs and adults are egg-shaped and generally yellow or ... [... more]
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Pepper Potyvirus Mosaic Diseases
UC Management Guidelines for Pepper Potyvirus Mosaic Diseases on Peppers. Symptoms on plants affected with potyvirus mosaic diseases can vary, but in general, plants show an overall lighter color along with mosaic patterns (alternating light and ... [... more]
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Pathogens: Phytophthora capsici, P. nicotinae var. ...
Aboveground symptoms of Phytophthora root and crown rot include rapid wilting and death of affected pepper plants. Close examination of the roots and stems of affected plants is necessary to confirm the cause of disease. The disease can develop ... [... more]
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Tomato Spotted Wilt Virus
UC Management Guidelines for Tomato Spotted Wilt Virus on Peppers. Symptoms on plants infected with Tomato spotted wilt tospovirus include overall yellowing (chlorosis), dead (necrotic) spots on leaves or terminal shoots, and general stunting. ... [... more]
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Scientific name: Liriomyza trifolii
Liriomyzid leafminer adults are small, shiny, black flies with a bright yellow, triangular spot on the upper thorax. Eggs are white and oval and laid within the leaf. Larvae feed between leaf surfaces, creating meandering tracks or mines. Mature ... [... more]
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Onion thrips: Thrips tabaci and other species
Thrips have a very extensive host range, including cereals, onions, garlic, and broadleaved crops. The primary damage caused by thrips to peppers is the vectoring of tomato spotted wilt virus. Once the thrips nymphs acquire the virus by feeding ... [... more]
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