营养型生物农药“杀鳞精”与化学农药混配对小菜蛾的防效研究
Research on Control of Plutella Xylostella L,With the Mixture of Nutrient Biocide“Thuringcide”and Chemical Pesticide
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摘要: 研究了营养型生物农药“杀鳞精”分别与4种化学农药混配对小菜蛾的防效。结果表明,4种混配液室内72h的校正死亡率在83.7%~100%,田间药后7d的校正防效为83.2%~100%,均优于常规化学农药和市售Bt;杀鳞精与4%万灵、杀鳞精与4%绿宝素的混配液具有较好的速效性;协同毒力指数在17.3%~44.8%之间,具有增效作用;小菜蛾对用4种混配液处理过的菜叶表现出了强烈的忌避性,拒食率为81.5%~96.5%;同时,杀鳞精具有不同程度的营养作用,可以提高作物的株高和株重。Abstract: The mixture of nutrient biocide“Thuringcidfe”and four chemical pesticide respectively was used to control Plutella Xylostella L.The result showed that the indoor 72 hour′s proof con-trol of the four mixture ranged from 83.7%to 100%,and their field proof control ranged from 83.2%to 100%after seven days.They were all better than the normal chemical oesticide and Bt sold in the market,also the latter two mixture had the stronger instant control function;the co-toxicity coefficient were between 17.3%and 44.8%,the controlling effect was increasing as the co-toxicity increased.The plutella xylostella L,showed great escape,the eat refusal rate was be-tween 81.3%and 96.5%.Meanwhile the mixture had different nutrient funtion which could in-crease the height and weight of a plant.
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[3] 吴世昌等.1992新灾药荟萃.中国农业科技出版社
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