| 斜纹夜蛾的生物控制研究 |
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| 引用本文： | 蒋杰贤,梁广文,庞雄飞.斜纹夜蛾的生物控制研究[J].植物保护学报,2000,27(3):221-226. |
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| 作者姓名： | 蒋杰贤 梁广文 庞雄飞 |
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| 作者单位： | 湖南农业大学植物科学技术学院，华南农业大学农业部昆虫生态、毒理重点开放实验室，华南农业大学农业部昆虫生态、毒理重点开放实验室 长沙 410128，广州 510642，广州 510642 |
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| 基金项目： | 国家博士点基金资助课题(960501)，湖南省自然科学基金重点(9977Y1003) |
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| 摘 要： | 应用以作用因子组配的生命表技术及其相应的分析方法,开展了几项生物防治措施单项和联合使用防治斜纹夜蛾(Spodoptera litura Fabricius.)的试验。结果表明,施用斜纹夜蛾核型多角体病毒(Spodoptera litura nuclear polyhedrosis virus)(浓度为3.1×10~7PIBs/ml,即每g虫尸兑水800倍液)和散放叉角厉蝽(Cantheconidea furcellata Wolff)(1.8头/m~2)均能控制斜纹夜蛾种群的增长。采用两项生防措施后,种群趋势指数值分别降至对照的0.0259倍和0.0532倍,当联合使用这两项生防措施后,种群趋势指数值则降至对照的0.0109倍。浇施斯氏线虫需高剂量(40～80万条/m~2)才能控制斜纹夜蛾种群数量的增长,高剂量可使种群趋势指数值下降至对照的0.758～0.094倍。若以短期内对害虫的杀伤作用作为评价依据,散放叉角厉蝽(1.8头若虫/m~2)的效果最好,进入暴食期的虫口密度下降到对照的0.0917倍.
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| 关 键 词： | 生命表 生物控制 斜纹夜蛾核型多角体病毒 |
STUDIES ON THE BIOLOGICAL SUPPRESSION OF COMMON CUTWORM SPODOPTERA LITURA FABRICIUS |
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| Jiang Jiexian,Liang Guangwen and Pang Xongfei.STUDIES ON THE BIOLOGICAL SUPPRESSION OF COMMON CUTWORM SPODOPTERA LITURA FABRICIUS[J].Acta Phytophylacica Sinica,2000,27(3):221-226. |
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| Authors: | Jiang Jiexian Liang Guangwen and Pang Xongfei |
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| Institution: | Plant Science and Technology College, Hunan Agricultural University, Changsha, 410128,Key Laboratory of Insect Ecology and Toxicology of Chinese Ministry of Agriculture, South China Agricultural University, Guangzhou 510642 and Key Laboratory of Insect Ecology and Toxicology of Chinese Ministry of Agriculture, South China Agricultural University, Guangzhou 510642 |
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| Abstract: | By applying life table analysis method, the single and combined suppressive effects of Spodoptera litura nuclear polyhedrosis virus (S1NPV) and Cantheconidea furcellata (Wolff), an important predatory stink bug,on the population trend index(I)of common cutworm Spodoptera litura Fabricius were tested in the field.The results showed that after the S1NPV(3.1×107PIBs/ml water) and C.furcellata (1.8 nymphs/m2) were inoculated separately/combinedly,the I were reduced to (0.0259,0.0532)/0.0109 times the value of untreated check, respectively, much more effective than high dosage (400-800 thousand nematodes/m2) treatment of Steinemema feltiae (strain A24), which I value was 0.758-0.094 times the value of check. The quick efficacy of C.Jurcellata was better and capable to reduce the I of larval population of S. litura in violent feeding period to 0.0917 times the value of check. |
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| Keywords: | Spodoptera litura life table biological suppression SINPV Cantheconidea furcel- lata |
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