Tomato Pest Management Guidelines
UC agricultural management guidelines for control of tomato pests. Relative Toxicities of Insecticides and Miticides Used in Tomatoes to Natural Enemies and Honey Bees (1/08) Tomato Weed Photo Gallery, with Common and Scientific Names ... [... more]
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Scientific name: Epitrix hirtipennis and others
Flea beetle adults are from 0.06 to 0.12 inch (1.5-3 mm) long. These insects derive their name from their well-developed hind legs; when disturbed they jump like fleas. Flea beetles can overwinter on weed hosts surrounding the field, on residues ... [... more]
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Early Blight
Plants infected with early blight develop small black or brown spots, usually about 0.25 to 0.5 inch (6-12 mm) in diameter, on leaves, stems, and fruit. Leaf spots are leathery and often have a concentric ring pattern. They usually appear on ... [... more]
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UC IPM: Tomato Weed Photo Gallery with Common and ...
Tomato Weed Photo Gallery with Common and Scientific Names. Nicotiana quadrivalvis Physalis philadephica Orobanche ramosa Melilotus spp. Digitaria sanguinalis Datura wrightii Datura stramonium E. M. Miyao, UC Cooperative Extension, Solano/Yolo ... [... more]
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Pathogen: Clavibacter michiganensis pv. michiganensis
There are usually no symptoms of bacterial canker on seedlings; however, on young plants symptoms consist of poor growth and temporary wilting of branches. Lower leaves yellow and shrivel, but symptoms may not show until flowering. On mature ... [... more]
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Scientific names: Silverleaf whitefly: Bemisia argentifolii
Several species of whiteflies may infest tomato. Proper identification of silverleaf whiteflies and greenhouse whiteflies is important because other whitefly species do not cause economic damage in tomato. Use a hand lens to examine both ... [... more]
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Powdery Mildew on Field-grown Tomatoes
UC Management Guidelines for Powdery Mildew on Field-grown Tomatoes. Leaves on infected tomato plants develop irregular, bright yellow blotches; severely affected leaves die but seldom drop. Spots of dead tissue, sometimes surrounded by a yellow ... [... more]
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Tomato Infectious Chlorosis Virus
UC Management Guidelines for Tomato Infectious Chlorosis Virus on Tomato. The leaves of plants infected with Tomato infectious chlorosis virus become yellow or red between the veins, stunted, and rolled. Symptoms generally occur on older leaves, ... [... more]
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Pathogen: Fusarium oxysporum f. sp. lycopersici
The Fusarium wilt fungus infects plants through the rootlets, invading the xylem and eventually extending throughout the plant. Individual branches and associated leaves on plants infected with Fusarium become yellow and wilt. Sometimes only one ... [... more]
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Bacterial Spot
Bacterial spot develops on seedlings and mature plants. On seedlings, infections may cause severe defoliation. On older plants, infections occur primarily on older leaves and appear as water-soaked areas. Leaf spots turn from yellow or light ... [... more]
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Garden Symphylans
Garden symphylans, also called garden centipedes, are slender, white arthropods, closely related to insects, about 0.33 inch (8 mm long), with 10 to 12 prolegs and distinct antennae. These fast-moving arthropods live in soil and move up and down ... [... more]
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Scientific names: Variegated cutworm: Peridroma saucia
Cutworm larvae come in various colors and patterns, but always appear smooth skinned to the naked eye. Most species of cutworms reach 1 to 2 inches when fully grown. They usually curl up when disturbed. Cutworms are mainly active at night. During ... [... more]
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