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以陷阱法研究了浙西南山区单季稻区４种不同非稻田生境与稻田间捕食性天敌的迁移规律。初步探明各生境中捕食性天敌种库资源丰富，由蜘蛛、蛙、鞘翅目捕食性昆虫和革翅目捕食性昆虫组成，蜘蛛占捕食性天敌总数的３８５％－７５、０％，种类有９科 １３种，优势种是拟水狼蛛；水稻移栽后的一个月内，捕食性天敌在稻田与非稻田生境间迁移活跃，从非稻田生境迁入稻田中的捕食性天敌是迁出数量的１．１－２．７倍；并在稻田内进行了减少施药次数试验，证明在水稻生长前期利用天敌控制稻飞虱为害，从而减少用药次数是可行的。
Trap method was used to study the migration of predatory natural enemies between four different non-rice habitats and paddy fields in the single cropping rice in the mountainous area of southwestern Zhejiang. Preliminary studies have shown that habitat predatory natural enemy species rich in resources, by the spiders, frogs, coleoptera predatory insects and leather fin head predatory insects, spiders accounted for 385% of the total number of predators, 0,0%, species are Thirteen families and 13 families were dominant, predominant species were Pirata subpiraticus. One month after transplanting, the predatory natural enemies migrated actively between paddy and non-paddy habitats, and predators evolved from non-paddy habitats to paddy fields 1.1-2.7 times of that of the control. In the paddy field, the experiment of reducing the number of pesticides was conducted to prove that it is feasible to control the planthoppers by using natural enemies during the early stage of rice growth.