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危害山药的地下害虫主要有蝼蛄、蛴螬、金针虫、地老虎等,这些地下害虫不仅咬食、截断山药,使山药块茎不能正常生长,造成山药畸形,而且伤口又为病原菌入侵提供了有利条件,进而导致块茎腐烂。为了提高防效,可以利用地下害虫的生活习性,也就是不同的趋性,采取物理措施与化学措施相结合的方法进行综合防治。一、加强对成虫的诱杀成虫迁移性强,产卵量大,是害虫防治的第一步,可用黑光灯、毒饵等诱杀。地下害虫如蝼蛄、蛴螬等,具有强烈
Harm the yam underground pests are mainly catfish, catfish, pinworm, to the tiger, these underground pests not only bite the food, cut off the yam, yam tubers can not grow normally, resulting in yam deformity, and wounds for the invasion of pathogens provide favorable conditions, Which in turn leads to tuber rot. In order to improve control efficiency, we can make use of the living habits of underground pests, that is, different tendency, and take the combination of physical measures and chemical measures to carry out comprehensive prevention and control. First, to enhance the trapping adult adults Migration strong, large amount of eggs, pest control is the first step, available black light, bait and other trapping. Underground pests such as 蝼 蛄, 蛴 螬, etc., with a strong