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在棉花栽培过程中,普遍发生落蕾、落铃与僵办、焖铃等现象,这些现象除了与自然条件及耕作管理方法等有着密切关系外,虫害是主要因子之一。三年来对于棉花害虫,因多偏重于保苗,仅注意到棉苗期害虫的防治,对于棉花蕾铃期害虫未能给予足够的重视,直接影响了棉花生产与纺织原料的供应。目前棉花将开始见蕾,进入发育阶段,除大力贯彻苗期害虫的防治措施外,更应加强蕾铃期害虫的防治工作,及时制止扩大蔓延,以达保铃的目的。特将几种主要棉花蕾铃期害虫的发生与防治方法介绍如后,供作各地参考。
In the course of cotton cultivation, the phenomena of falling buds, falling bell and deadlock, Braised Bell and so on occur frequently. These phenomena are not only closely related to natural conditions and farming management methods, but also are one of the main factors. In the past three years, cotton pests mainly focused on seedling protection and only noticed prevention and control of pests in cotton seedling stage. They failed to pay enough attention to cotton boll stage pests and directly affected the supply of cotton production and textile raw materials. At present, cotton will begin to see Lei and enter the developmental stage. In addition to vigorously implementing the prevention and control measures for seedling pests, the prevention and control of pests should also be strengthened in time to stop the expansion and spread in order to protect the bell. Special will be the main types of cotton boll stage pest occurrence and control methods such as described later, for all around for reference.