| 白刺夜蛾防治指标的研究 |
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| 引用本文： | 王俊梅,史青茂,李建廷,吴栋国,常明.白刺夜蛾防治指标的研究[J].草地学报,2000,8(1):46-48. |
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| 作者姓名： | 王俊梅 史青茂 李建廷 吴栋国 常明 |
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| 作者单位： | 甘肃省草原总站,兰州,730046 |
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| 摘 要： | 研究白刺夜蛾幼虫的食量和防治指标。结果表明，幼虫可分为5龄，各龄幼虫的日食量依次为4．81、12．39、56、130．68和483．25mg／头，幼虫期总食量2453．58mg／头。根据食量测定，研制的防治指标为39．7头／m^2，经济允许损失水平为12．5％。
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| 关 键 词： | 白刺夜蛾 防治指标 荒漠草原 |
A Study on the Action Threshold for Control Leiometopon simyrides Staudinger |
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| Wang Junmei,Shi Qingmao,Li Jianting,Wu Dongguo,Chang Ming.A Study on the Action Threshold for Control Leiometopon simyrides Staudinger[J].Acta Agrestia Sinica,2000,8(1):46-48. |
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| Authors: | Wang Junmei Shi Qingmao Li Jianting Wu Dongguo Chang Ming |
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| Abstract: | The daily grazing capacity (DGC)and the action threshold for control of L.simyrodes S. was studied in Jinchang city,Gansu province during 1996-1998.The daily grazing capacty of the lavas stages was measured as 4.81,12.39,37.56,130.68 and 483.25mg/head respectively.and the total grazing capacity was 2453.58mg/head.Based on DGC,the action threshold was obtained as 39.7 individuals/m 2,the economic tolerant yield loss rates is 12 5%. |
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| Keywords: | Leiometopon simyrides S Action threshold Desert steppe |
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