Peppers
Relative Toxicities of Insecticides and Miticides Used in Peppers to Natural Enemies and Honey Bees (11/03) ... [... more]
University of California IPM |
Verticillium Wilt
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, ... [... more]
University of California IPM |
Pepper Tobamovirus Diseases
The best control is to use seed that has been treated to eliminate the seedborne inoculum. Minimizing plant handling and damage also is important for reducing field spread of tobacco mosaic virus. Good sources of ... [... more]
University of California IPM |
Bacterial Spot
The bacterium is seedborne and can occur within the seed and/or on the seed surface. The pathogen is disseminated with seed or on transplants. Bacterial spot is a relatively minor disease that is favored by high ... [... more]
University of California IPM |
Beet Armyworm
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 ... [... more]
University of California IPM |
Omnivorous Leafroller
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 nearest the body is a dark rusty ... [... more]
University of California IPM |
Twospotted Spider Mite
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 greenish in color. On each side of ... [... more]
University of California IPM |
Pepper Potyvirus Mosaic Diseases
All of the pepper potyviruses are transmitted from plant to plant by several species of aphids. Aphids are able to transmit these viruses for very short periods of time (minutes to a few hours). The type of aphid ... [... more]
University of California IPM |
Phytophthora Root And Crown Rot
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 ... [... more]
University of California IPM |
Tomato Spotted Wilt Virus
Tomato spotted wilt tospovirus is transmitted by various species of thrips, including western flower thrips (Franklinella occidentalis), onion thrips (Thrips tabaci), and chili thrips (Scirtothrips dorsalis). Tomato ... [... more]
University of California IPM |
Leafminer
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 ... [... more]
University of California IPM |
Thrips
Thrips are very small, slender insects that are best seen with a hand lens. Mature western flower thrips are 0.06 inch (1.5 mm) long, while onion thrips are slightly smaller at 0.05 inch (1.3 mm) long. The most ... [... more]
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