论文部分内容阅读
近几年由于棉蚜在我区棉田大发生,危害程度一年比一年严重,造成棉纤维含糖量增高,棉絮污染大,使棉花品质大大降低,直接影响我区棉花的出口。为了解决这一问题,我们在棉花封垄后用敌敌畏毒土防治棉蚜效果很好,有效地控制了棉蚜的危害。 一、敌敌畏毒土防治棉蚜作用原理 敌敌畏易挥发,药效时间短,加入适量的细土做缓释剂,使敌敌畏被土吸附后缓慢
In recent years, cotton aphid occurred in our area of cotton fields, serious harm year after year serious, resulting in increased cotton fiber sugar content, cotton wool pollution, cotton quality greatly reduced, a direct impact on the export of cotton in our region. In order to solve this problem, we used cotton dichlorvos poisonous soil to control cotton aphid good effect, effectively control the harm of cotton aphid. First, the enemy of dichlorvos poisonous soil control cotton aphid role of the principle of dichlorvos volatile, short duration of time, adding an appropriate amount of fine soil as a sustained release agent to make the dichlorvos by the soil adsorption slow