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西瓜地蛆又叫根蛆,是种蝇的幼虫。在种瓜时常常因为肥料腐熟不好,或底施发酵不好的饼肥而造成地蛆严重为害,造成缺苗断垄,有的甚至毁种.根据我们的实践,地蛆防治要把住三道关。(1)农业措施防治采用大田直播的要施用充分发酵的饼肥和腐熟的圈肥;采用育苗移栽可以更好地防治种蝇集中在瓜沟和播种穴产卵危害.(2)药剂防治大田直播的,可用40%
Watermelon maggots, also known as root maggots, is a larva of flies. In the kind of melon often because of poor maturity of the fertilizer, or at the end of poor fermentation of cake caused by the maggot serious damage, resulting in lack of seedlings broken ridge, and some even destroyed species. According to our practice, maggot prevention and control should take three customs . (1) Prevention and control of agricultural measures Live broadcast by field to apply fully fermented cake and decomposed rotten manure; seedling transplanting can better prevent and control the kinds of flies concentrated in melon ditch and seeding hole spawning hazards. (2) Of the available 40%