几种杀虫剂防治三化螟药效试验

The test of several pesticides to control Scirpophaga incertulas(Walker)

为筛选出替代甲胺磷等5种高毒剧毒农药品种,进行几种杀虫剂防治三化螟药效对比试验。试验表明:每1hm2使用5%锐劲特SC300ml+30%敌百虫EC1500ml、5%锐劲特SC300ml+48%乐斯本EC1500ml、5%锐劲特SC450ml防治三化螟的防效显著,其中以每1hm2使用5%锐劲特SC300ml+30%敌百虫EC1500ml的成本较低,防效达94.5%;混合农药又是克服害虫抗药性的重要手段;可作为替代甲胺磷等五种高毒剧毒农药的理想药剂配方,用于防治水稻三化螟。

In order to select some pesticides for substitution of severe toxicity pesticides, a comparison experiment of several pesticides was conducted to control Scirpophaga incertulas（Walker）and the results showed that 5 % Ruijinte SC300ml ＋ 30 % dipterex EC1500ml, 5 % Ruijinte SC300ml ＋ 48 % Lesiben EC1500ml, 5 % Ruijinte SCA50ml all have better control effect. Among them, the first prescription has the lowest cost and the effect rate can reach 94.5 %. The mixed pesticides are also good means for overcome pesticide resistance and can replace the severe toxicity pesticides for control rice Scirpophaga incertulas（Walker）.