蜘蛛在害虫的捕食性天敌中占有重要位置。世界上已知22000种,国内达1000种以上,我省收集到140余种,其中果园内达30种。蜘蛛在消灭害虫方面有很多特性:①食性单一,全为肉食,不吃作物,利用它治虫无付作用;②性凶猛,专捕活虫,一般不吃死虫;③捕食量 Spiders occupy an important position in the pest predators. There are 22,000 species known in the world and more than 1,000 species in China. More than 140 species have been collected in our province, of which 30 species are in orchards. Spiders in the elimination of pests have many characteristics: ① feeding a single, all for the meat, do not eat crops, use it to control pests without pay; ② ferocious, specialized catch live insects, generally do not eat dead insects; ③ predation