Cucumber Beetle Control

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How to Get Rid of Cucumber Beetles Naturally Cucumber beetle control starts with understanding why these small, yellow-green beetles are among the most destructive pests in the vegetable garden. Whether striped or spotted, cucumber beetles are the main carriers of bacterial wilt (Erwinia tracheiphila). Bacterial wilt is an incurable disease that can kill an entire planting of cucumbers or muskmelons. The most effective cucumber beetle management uses Integrated Pest Management (IPM) programs. Combining early monitoring, physical barriers, biological controls, cultural tactics, and targeted organic treatments is key. NaturesGoodGuys offers natural cucumber beetle control solutions to protect your cucurbit crops from seedling through harvest. What Are Cucumber Beetles? Cucumber beetles are small, hard-shelled beetles in the family Chrysomelidae. Two species are the most common and destructive across North America. Both are easy to recognize by their yellow-green bodies and black spots or stripes: Striped Cucumber Beetle (Acalymma vittatum / Acalymma trivittata in the West): The striped cucumber beetle is the more dangerous of the two species. It is the primary carrier of bacterial wilt and lays its eggs exclusively at the base of cucurbit plants. Its larvae feed exclusively on cucurbit roots (UConn Extension, 2012). Spotted Cucumber Beetle (Diabrotica undecimpunctata howardi): Also known as the southern corn rootworm in its larval form. Spotted cucumber beetle has a much wider host range than the striped species. It is a secondary carrier of bacterial wilt and squash mosaic virus. Both species overwinter as adults in plant debris, weedy areas, wood edges, and uncultivated land surrounding gardens and fields. They become active in spring after the last frost. They migrate into gardens as soon as cucurbit seedlings emerge. Beetles also produce an aggregation pheromone. Once a few beetles start feeding on a plant, they send chemical signals to others. This is why beetle