苏云金芽孢杆菌液剂与杀虫双混用对稻纵卷叶螟的增效作用

苏云金芽孢杆菌液剂与杀虫双混用对稻纵卷叶螟的增效作用

顾真荣¹; 马承铸¹; 周爱农¹; 王冬生¹; 钱振官¹; 戚大国²

1.上海市农业科学院植保所,上海 201106;2.上海市农业科学院植保所,上海市农业科上海市松江县植保站,上海 20160

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1993-11-08 发布日期:1993-11-08

SYNERGIC EFFECT OF BACILLUS THURINGIENSIS PREPARATION AND DIMETHYPO IN CONTROLLING CNAPHALOCROCIS MEDINALIS[LEP.: PYRALIDAE]

GU Zhen-rong¹;MA Cheng-zhu¹;ZHOU Ai-nong¹;WANG Dong-sheng¹;QIAN Zhen-guan¹;QI Da-guo²

1.Institute of Plant Protection,Shanghai Academy of Agricultural Sciences,Shanghai 201106;2.Plant Protection Station,Songjiang County,Shanghai 201600

Received:1900-01-01 Revised:1900-01-01 Online:1993-11-08 Published:1993-11-08

摘要/Abstract

摘要： 室内生物测定表明,Bt液剂和不同比例的25％杀虫双混用对稻纵卷叶螟都有不同程度的增效作用,其中3:1和1:1(Bt:杀虫双)混用增效作用最为明显,共毒系数分别为265和298。1:1混用的毒效为杀虫双单用的1.71倍。田间小区试验表明,1:1混用的防治效果接近于同剂量的杀虫双。

Abstract: Various degrees of synergic effects of Bacillus thuringiensis aqueous concentrate and 25% dimethypo against Cnaphalocrocis medinalis were obtained in a laboratory bioassay when the bio-pesticide was used in mixture with dimethypo at different ratios. Optimal synergistic activity occurred at 3:1 and 1:1 mixture ratios with the toxicity coefficients of 265 and 298, respectively. The toxicity of the mixture at 1:1 ratio was 1.71 times higher than that of dimethypo alone. Applying the mixture at 1:1 ratio in the field plot test gave approximately the same control effect as using dimethypo alone at the same treatment dose.

顾真荣1 ; 马承铸1 ; 周爱农1 ; 王冬生1 ; 钱振官1 ; 戚大国2 . 苏云金芽孢杆菌液剂与杀虫双混用对稻纵卷叶螟的增效作用[J]. , DOI: .

GU Zhen-rong¹;MA Cheng-zhu¹;ZHOU Ai-nong¹;WANG Dong-sheng¹;QIAN Zhen-guan¹;QI Da-guo². SYNERGIC EFFECT OF BACILLUS THURINGIENSIS PREPARATION AND DIMETHYPO IN CONTROLLING CNAPHALOCROCIS MEDINALIS[LEP.: PYRALIDAE][J]. , DOI: .