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Relative Toxicities of Pesticides Used in Cucurbits to ...
University of California IPM — Cucurbits depend on bees for successful pollination. In addition, beneficial insects and mites play a key role in maintaining populations of aphids, leafminers, and spider mites below economically damaging levels. They also are instrumental in ...More…
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UC Management Guidelines for Darkling Beetles on Cucurbits
University of California IPM — Darkling beetle adults are from 0.13 to 0.25 inch long (3 to 6 mm) and vary from black or bluish black to rusty brown. Do not confuse beetles (Tenebrionidae) with predatory ground beetles (Carabidae), which prey on various soil dwelling pests. ...More…
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UC Management Guidelines for Grasshoppers on Cucurbits
University of California IPM — Grasshoppers may occasionally attack cucurbit crops, particularly if planted adjacent to foothill rangeland. They normally migrate from the range into cultivated areas as vegetation on the rangeland dries up. Grasshoppers destroy leaf tissue and, ...More…
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UC Management Guidelines for Green Stink Bug on Cucurbits
University of California IPM — The green stink bug is bright green with the entire lateral margin lined yellow, orange, or reddish. They are slightly larger (0.6-0.9 inch or 1.5-2.2 cm in length) and less common than the redshouldered stink bug. These bugs develop in trees and ...More…
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UC Management Guidelines for Whiteflies on Cucurbits
University of California IPM — Several species of whiteflies infest cucurbits. Proper identification of the whitefly species is important because the silverleaf whitefly, and occasionally the greenhouse whitefly, represent the greatest damage potential to cucurbits. Silverleaf ...More…
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UC Management Guidelines for Thrips on Cucurbits
University of California IPM — Western flower thrips is both a beneficial insect (it feeds on spider mites) and a pest (it can damage flowers and shoot tips during the early growth stages or occasionally, if populations are severe, immature fruit). Both the young and adults ...More…
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UC Management Guidelines for Squash Bug on Cucurbits
University of California IPM — The adult squash bug is 0.65 inch (1.5 cm) in length. It is brownish yellow but appears black because of a dense covering of black hairs. Protruding margins of the abdomen are orange or orange and brown striped, and the margins of the pronotum ...More…
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Cucurbits Pest Management Guidelines
University of California IPM — UC agricultural management guidelines for control of cucurbit pests. Relative Toxicities of Pesticides Used in Cucurbits to Natural Enemies and Honey Bees (6/08) Cucurbits Weed Photo Gallery, with Common and Scientific Names (11/05) Biological ...More…
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Introduction to Weeds Photo Gallery
University of California IPM — Links to photos and descriptions of common weeds of California. The UC IPM Weed Photo Gallery includes many, but not all, weed species commonly found in California farms and landscapes. Additional species will be added over time. ...More…
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Cucurbit Yellow Stunting Disorder
University of California IPM — UC Management Guidelines for Cucurbit Yellow Stunting Disorder on Cucurbits. Infected cucurbit plants initially show a chlorotic (yellow) spotting, which eventually develops into a striking interveinal chlorosis (yellowing) in which the veins ...More…
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Pests in Homes, Gardens, Landscapes, and Turf
University of California IPM — Information about managing pests of homes, gardens, landscapes, and turf, from UC IPM. Management methods including pesticides and biological control Identification helpers-including natural enemies and weed photo galleries UC Statewide Master ...More…
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UC IPM: General Information Concerning Biological ...
University of California IPM — General Information Concerning Biological Control on Cucurbits. Cucurbits are relatively fast growing, annual crops; consequently, beneficial insects and mites may not have adequate time to develop high populations in the early stages of crop ...More…