腐殖酸钠与四种农药混用对苹果黄蚜的增毒效果

Study on the Enhancement Effect of the Mixed Use of Four Different Pesticides with Humic Acid Sodium to Aphis ciricola van der Goot

将18%腐殖酸钠与40%毒死蜱、0.9%阿维菌素、3%啶虫脒、4.5%高效氯氰菊酯按照不同比例混合,设置不同浓度梯度,测定其对苹果黄蚜的毒力效果。结果表明:混用后,共毒系数(CTC)均大于100,都表现出不同程度的增效作用,4种混剂中随着腐殖酸钠比例的增加,增效作用逐渐增大。

Tested Aphis ciricola van der Goot by using 18% of humic acid sodium mixed with 4 different pesticides(40% of chlorpyrifos,0.9% of avermectins,3% of acetamiprid,4.5% of beta-cypermethrin).The results showed that,with the increasing of the proportion of humic acid sodium used in the combination,the enhancement effect of Toxicity to Aphis ciricola van der Goot was also increased.