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慈姑钻心虫,又叫慈姑蛀虫、慈姑髓虫,属鳞翅目细卷蛾科,是慈姑的重要钻蛀性害虫,一般7~9月发生,幼虫钻入叶柄蛀食使叶折断凋萎。严重田块受害率高达70%以上,严重影响慈姑生产,甚至造成绝产。第一、二代幼虫为害高峰分别为7月中旬和8月中旬,第三代为害最重,其幼虫发生期为9月至10月,10月底至11月初老熟幼虫开
Arrowhead bug, also known as arrowhead arrowhead, arrowhead worm, Lepidoptera is a fine moth family, is an arrowhead important borer pests, usually occurs from July to September, larvae into the petiole, eaten so foliage withered. Severe field damage rates as high as 70%, seriously affect the production of arrowheads, and even cause junk. The first and second-generation larvae peaked in mid-July and mid-August, respectively. The third generation was the hardest hitter, with the larvae occurring from September to October and the end of October to the beginning of November.