论文部分内容阅读
该文记述了甘肃省天水市危害刺槐的 3种尺蠖类害虫刺槐眉尺蠖、春尺蠖、桑褶翅尺蠖的生物学特性。 3种害虫均为一年 1代 ,以蛹在树冠下越夏越冬。大面积防治中以 2 5 %灭幼脲 15 0 0倍液效果最佳。
This article describes the biological characteristics of three species of Scutellaria barbatus, Schima superba and Morus alba, which are endangered by Robinia pseudoacacia in Tianshui, Gansu Province. The three kinds of pests are a generation a year, with the pupa in the summer crown over the summer. Large-scale prevention and control to 25% chlorbenzuron 15 0 0 times the best.