论文部分内容阅读
一、刺吸式口器害虫的防治花生出苗后至开花前,蚜虫、叶螨等害虫是花生苗期的防治重点。可以采用以下具体措施:1.保护利用天敌:花生蚜虫的天敌种类很多。重要的有瓢虫、草蛉、食蚜蝇等,田间百墩花生蚜量4头左右,瓢∶蚜为1∶100~120时,蚜虫危害可以得到有效的控制。作物合理布局,实行麦田与花生田插花种植可以增加瓢虫的数量,有利于减轻蚜虫的危害。此外,在花生田周围种植豇豆等蜜源植物,有利于蛴螬的天敌臀钩土蜂的保护利用。
First, the sucking mouthparts pest control Peanut emergence after flowering, aphids, spider mites and other pests are peanut seedling prevention and control focus. The following specific measures can be used: 1. Protection and use of natural enemies: peanut aphids many types of natural enemies. Important ladybugs, grass mullet, hoverfly and so on, the field hundred pier peanut aphids amount of about 4, scoops: aphids for the 1: 100 ~ 120, the aphids can be effectively controlled. Reasonable layout of crops, the implementation of planting wheat and peanut fields flower planting can increase the number of ladybugs, help to reduce the harm of aphids. In addition, the planting of cowpea and other nectar plants around the peanut fields is in favor of the protection and utilization of the natural enemies of the emu.