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首先要防食根金花虫。食根金花虫又名稻根叶甲,成虫有鞘翅,幼虫形体似蛆,通称地蛆或水蛆。幼虫潜入泥中,在地下茎的节位附近吮吸汁液。进入结藕期后,在藕身的节位附近危害。造成地上部立叶细小、发黄,生长势衰退。直接危害新藕后,在藕上形成虫斑,藕变细小,降低产量和品质。防治
First of all to prevent food root gold flower insects. Roots of goldenrod, also known as rice root leaf beetle, adults have coleoptera, larvae like maggots, commonly known as maggots or water maggots. The larva dive into the mud and suck the juice around the nodes of the underground stems. After entering the knot lotus root joints in lotus endangered. Caused by the ground leaves small, yellow, growth potential decline. Directly endanger the new lotus root, the formation of worm spots on the lotus root, lotus root smaller, lower yield and quality. Prevention and treatment