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甘薯小象甲虫又名甘薯象甲,属鞘翅目,象鼻虫科,为我国的重要检疫害虫。成虫和幼虫均为害甘薯,而以幼虫为主。受害薯块有腥臭味,不能食用,并可诱发软腐病、黑斑病等,严重影响甘薯产量和质量。1、发生规律与生活习性:甘薯小象甲虫在广西年发生世代为4～6代。以成虫、幼虫、蛹等虫态在薯块内及茎、叶越冬,成虫还可分散到甘薯地周边杂草和土缝中越冬,没有滞育现
Sweet potato baby elephant beetle, also known as sweet potato as a, is a Coleoptera, weevil family, for our country’s important quarantine pests. Adults and larvae are harmful to sweet potato, while the larvae. Potato tubers have stench, can not eat, and can induce soft rot, black spot, etc., seriously affect the sweet potato yield and quality. 1, the occurrence of laws and habits: sweet potato beetle in Guangxi in the generation of 4 to 6 generations. In adults, larvae, pupae and other insect states in the tubers and stems and leaves, winter, adults can also be dispersed around the sweet potato weeds and soil cracks in winter, no diapause