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为了更好地发挥寄生性天敌在稻田害虫综合防治中的作用,我们在溧阳县殷桥公社通过大田调查和室内饲养观察,研究了几种主要水稻害虫寄生性天敌的作用,希望从几种农药和不同施药时间的比较试验中,获得有关合理用药、保护利用自然天敌的信息。 大田包括早稻(迎春早)14.5亩、中稻(杂交稻)24.4亩,后季稻(桂花糯)6亩,除用药田的不同处理外,三种类型田皆有不用药田作对照。所用农药包括(1)90％固体敌百虫,每亩2两加水100斤喷雾。(2)25％杀虫脒水剂,每亩0.5斤掺土60斤于插秧后深施土中。(3)
In order to give full play to the role of parasitic natural enemies in integrated pest control in rice fields, we investigated the effect of several major pests parasitic natural enemies in the Yinqiao commune in Liyang County through field surveys and indoor feeding observations. We hope that from several pesticides And different application time comparison test, access to the rational use of medicine, protection and use of natural enemies of the information. Daejeon includes 14.5 mu for early rice (spring morning), 24.4 mu for middle rice (hybrid rice), and 6 mu for the latter rice (sweet-scented osmanthus). In addition to the different treatments of the medicinal plants, all three types of medicinal plants are not controlled by medicinal plants. Pesticides used include (1) 90% solid trichlorfon, two 100 kg sprays per acre. (2) 25% of pesticidal amidine water agent, 0.5 kg per acre mixed with 60 kg of soil after planting deep soil. (3)