... such as glutamate and γ-aminobutyric acid (GABA) function, so that a large number of chloride ions into nerve cells, the cells ... crops with long-term residual effect in 10 days and a second a peak of insect mortality, but little affected by environmental factors ... insect pests ,has both stomach and contact action , has a good effect at a very low dose (0.084 ~ 2g/ha) , and ...