Pests and Diseases, Trends

US: Colorado potato beetles develop resistance

Adult Colorado potato beetles are fat, oval-shaped insects, striped yellow-orange and black with a length of 3/8 of an inch. They attack members of the Solanaceae plant family, including potato, tomato, eggplant and pepper and can cause near-defoliation of plants with their hearty appetites. Control has become difficult because the beetles have developed resistance to many synthetic (man-made) insecticides including Sevin. Currently a recommended control product is spinosad. Spinosad is an interesting, relatively new natural insecticide. More

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