江苏里下河地区农业科学研究所利用乙酰甲胺磷与吡虫啉2种药剂混配,以水稻主要害虫为靶标对象,研究了室内毒性比较效果及田间药效试验情况。试验结果表明:乙酰甲胺磷与吡虫啉最佳配方对三化螟的共毒系数为169.60,具有一定的增效作用。田间两点对水稻主要害虫的药效试验结果表明,50%乙酰甲胺磷·吡虫啉可湿性粉剂对二化螟的防效为97.1%,对稻纵卷叶螟的防效为88.9%,药后15天两点对稻飞虱的防效均在90%以上, Jiangsu Lixiahe Agricultural Sciences Institute of Acephate and imidacloprid two agents mixed with the main rice pests as the target of the study to compare the indoor toxicity and efficacy of field trials. The results showed that the co-toxicity coefficient of acephate and imidacloprid on the rice stem borer was 169.60, which showed a synergistic effect. The results of field trials on major rice pests showed that the control efficacy of 50% acephate and imidacloprid WP on the stem borer was 97.1% and that on the rice leaf roller was 88.9% Two points after 15 days of planthopper control efficiency are more than 90%