论文部分内容阅读
近年来,由于抗虫棉的推广,使棉田防治害虫的次数减少,降低了棉花生产成本,受到了棉农的欢迎。但抗虫棉不是无虫棉,有些农民误认为抗虫棉即是免药棉,放松棉田管理,致使害虫严重发生,造成不应有的损失。现将抗虫棉病虫害的防治方法介绍如下:1.选择优良的抗虫棉品种。当前,抗虫棉
In recent years, due to the popularization of insect-resistant cotton, cotton fields reduce the number of pest control, reducing the cost of cotton production, welcomed by cotton farmers. However, insect-resistant cotton is not insect-free cotton, some farmers mistakenly believe that insect-resistant cotton is free drug-resistant cotton, cotton field management, resulting in serious pests, resulting in undue losses. Now the prevention and treatment of insect-resistant cotton pests and diseases are described below: 1. Choose excellent insect-resistant cotton varieties. Currently, insect-resistant cotton