| Bt工程菌WG-001与化学杀虫剂复配最佳配方筛选及田间防效研究 |
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| 引用本文： | 张聪冲,邱浩,覃春华,游红,李建洪.Bt工程菌WG-001与化学杀虫剂复配最佳配方筛选及田间防效研究[J].昆虫知识,2011,48(2):313-318. |
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| 作者姓名： | 张聪冲 邱浩 覃春华 游红 李建洪 |
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| 作者单位： | 华中农业大学植物科学技术学院,武汉,430070 |
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| 基金项目： | 公益性行业(农业)科研专项 |
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| 摘 要： | 为了延缓小菜蛾Plutella xylostella(L.)抗药性的产生和发展,筛选Bt工程菌WG-001与化学杀虫剂的最佳复配配方,本研究采用浸叶法分别测定了Bt工程菌WG-001与茚虫威、丁醚脲和巴丹复配对小菜蛾的增效作用。结果表明,当Bt工程菌WG-001与茚虫威以有效成分之比为100.10∶0.72复配时,增效作用最强,共毒系数为178.05。而Bt工程菌WG-001分别与丁醚脲和巴丹复配表现相加或拮抗作用。田间试验结果表明,Bt工程菌WG-001与茚虫威以100.10∶0.72的有效成分之比进行复配后,药后7d,500倍液对小菜蛾的平均防效为84.88%,显著优于Bt工程菌WG-001和茚虫威单用的平均防效。
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| 关 键 词： | 苏云金芽孢杆菌工程菌WG-001 茚虫威 小菜蛾 增效作用 田间防效 |
Screening of optimum proportion and field effect of mixtures of Bt engineering strain WG-001 and chemical insecticides against Plutella xylostella |
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| ZHANG Cong-Chong,QIU Hao,QIN Chun-Hua,YOU Hong,LI Jian-Hong.Screening of optimum proportion and field effect of mixtures of Bt engineering strain WG-001 and chemical insecticides against Plutella xylostella[J].Entomological Knowledge,2011,48(2):313-318. |
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| Authors: | ZHANG Cong-Chong QIU Hao QIN Chun-Hua YOU Hong LI Jian-Hong |
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| Institution: | ZHANG Cong-Chong QIU Hao QIN Chun-Hua YOU Hong LI Jian-Hong(College of Plant Science & Technology,Huazhong Agricultural University,Wuhan 430070) |
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| Abstract: | The relative effectiveness of mixtures of the Bt strain WG-001 with the pesticides indoxacarb,diafenthiuron and cartap for controlling the diamondback moth(DBM) Plutella xylostella(L.) was determined using the leaf-dipping method.The results indicate that a 100.10:0.72 mixture of Bt strain WG-001 and indoxacarb was the most synergetic with a co-toxicity coefficient(CTC) of 178.05.Mixtures of Bt strain WG-001 with diafenthiuron or cartap had an additive or antagonistic action,respectively.Results of a field ... |
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| Keywords: | Bacillus thuringiensis engineering strain WG-001 indoxacarb Plutella xylostella synergetic action field effect |
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