摘要
[目的]筛选对南方根结线虫高效低毒的药剂。[方法]采用浸泡杀线虫法测定9种药剂对南方根结线虫的毒力,选活性较高的单剂进行交互复配,测定其联合毒力。[结果]甲氨基阿维菌素苯甲酸盐对2龄幼虫和卵囊的毒力最强,LC50值分别为2.51、10.50 mg/L;甲氨基阿维菌素苯甲酸盐与噻唑膦复配的共毒系数为141.59,阿维菌素与噻唑膦复配的共毒系数为159.37。[结论]单剂以甲氨基阿维菌素苯甲酸盐活性最高,复配剂以噻唑膦与阿维菌素、甲氨基阿维菌素苯甲酸盐复配效果最佳。
[Aims] The study aims to screen out the optimal pesticide agianst Meloidogyne incognita with high efficacy and low poison. [Methods] Dipping method was conducted to test the toxicity of 9 pesticides, after the screening, high active pesticides were mixed to test the joint toxicity. [Results] Emamectin-benzoate had the highest toxicity against the second-stage juveniles (J2) and eggs with LC50 of 2.51, 10.50 mg/L, respectively. The co-t0xicity coefficient of emamectin-benzoate mixed with fosthiazate was 141.59, the cotoxicity coefficient of avermectin mixed with fosthiazate was 159.37. [Conclusions] The activity of emamectin'benzoate is the highest among the nine tested pesticides, the activity of fosthiazate mixed with avermectin or with emamectin benzoate are the best among all the mixtures.
出处
《农药》
CAS
CSCD
北大核心
2014年第6期449-452,共4页
Agrochemicals
基金
南宁市青秀区科技攻关与新产品试制项目(2013N07)
南宁市科技攻关项目(20142070)
关键词
南方根结线虫
防治药剂
毒力
增效作用
Meloidogyne incognita
pesticides
toxicity
synergistic effect