Dry Beans Pest Management Guidelines
UC agricultural management guidelines for control of dry bean pests. Relative Toxicities of Insecticides and Miticides Used in Dry Beans to Natural Enemies and Honey Bees (12/08) Abiotic disorders, those caused by noninfectious (abiotic) ... [... more]
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Scientific name: Liriomyza sativae and Liriomyza trifolii
Leafminer adults are very small flies, 0.1 inch (2.5 mm) long, black to blue, with parts of the thorax, legs, and abdomen yellow. Usually there is a prominent yellow area at the base of the wings. The minute white eggs are laid just under the ... [... more]
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PERENNIAL WEEDS
BEN = bentazon (Basagram) ETH = ethalfluralin (Sonalan) MET = metolachlor (Dual Magnum) (Reviewed 12/08, updated 12/08) 24D* = 2, 4-D (various products) Integrated weed management groundcherry EPT = EPTC (Eptam) sowthistle wheat, ... [... more]
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Common Bacterial Blight
UC Management Guidelines for Common Bacterial Blight on Dry Beans. Symptoms of common bacterial blight first appear on leaves as small, watersoaked spots and/or light green areas. These spots enlarge and the tissue in the centers dies and turns ... [... more]
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Southern Blight
Initial symptoms of southern blight include a yellowing of the foliage with slight darkening of the stem just above the soil line. Lesions on the stem at or near the soil line develop rapidly, girdling the stem and result in a sudden and ... [... more]
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Cucumber Beetles
Cucumber beetles are frequently abundant in bean/pea fields, but damage is usually insignificant. The western spotted cucumber beetle is green, 0.25 inch long, and has eleven black spots on its wing covers. The whitish worm-like larvae feed on ... [... more]
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Fusarium Wilt (Common Beans)
UC Management Guidelines for Fusarium Wilt (Common Beans) on Dry Beans. Symptoms of Fusarium yellows or wilt usually appear on medium-aged or older plants and begin as a yellowing and wilting of the lower leaves. The wilting and yellowing then ... [... more]
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Scientific Names: Lygus hesperus, Lygus elisus
The lygus bug adult is about 0.25 inch long and about half as wide. It is generally brownish but varies from green to straw-colored, tawny, or light brown; the body is marked with a pattern of different shades of brown and occasionally yellow or ... [... more]
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Bacterial Brown Spot
UC Management Guidelines for Bacterial Brown Spot on Dry Beans. Bacterial brown spot symptoms on leaves appear as oval spots that have dead (necrotic) tissue in the center surrounded by a narrow zone of light-green to yellow tissue. Water-soaking ... [... more]
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Empoasca Leafhoppers
UC Management Guidelines for Empoasca Leafhoppers on Dry Beans. Several species of leafhoppers are found in dry beans with Empoasca fabae and E.solana being the most common. They are nearly identical morphologically and can only be distinguished ... [... more]
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Alfalfa looper: Autographa californica
Alfalfa looper and cabbage looper larvae are green with three pairs of true legs up front and two pairs of robust, unjointed prolegs on the abdomen (back portion of the body). A distinguishing characteristic is that the larvae arch their backs ... [... more]
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Bean Yellow Mosaic
UC Management Guidelines for Bean Yellow Mosaic on Dry Beans. The diagnostic symptom of bean yellow mosaic is the bright yellow to green mosaic or mottle appearance of infected leaves, which becomes most apparent on leaves as they become older. ... [... more]
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