insecticidal

A new typal insecticide, its generation, physical and chemical properties, insecticidal mechanism, insecticidal characteristic and synthesis of diflubenzuron are introduced.

介绍了新型──除脲发现、理化性质、机理、特点及合成方法。

According to the author's experience in the control of cotton aphids.the systemic insecticidal action of Systox was different when it was applied at different times of the day.

正>在与贫下中农一起用1059(内吸磷)防治棉蚜多次生产实践中作者曾经注意到,一天之内不同时间,效有差异,傍晚效较好。