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>在中农一起用1059(内吸磷)防治棉蚜的多次生产实中作者曾经注意到,一天之内不同时间喷,有差异,傍晚喷较好。