| 内蒙古草原主要蝗虫的防治经济阈值 |
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| 引用本文： | 邱星辉,康乐,李鸿昌.内蒙古草原主要蝗虫的防治经济阈值[J].昆虫学报,2004,47(5):595-598. |
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| 作者姓名： | 邱星辉 康乐 李鸿昌 |
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| 作者单位： | 中国科学院动物研究所,农业虫害鼠害综合治理研究国家重点实验室,北京,100080 |
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| 基金项目： | 国家“九五”科技攻关计划项目 ( 96 0 16 0 1 0 6) |
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| 摘 要： | 通过取样调查确定内蒙古草原的优势蝗虫种类；根据5种优势蝗虫自然种群的结构和数量，计算了其蝗蝻和成虫的平均寿命；在半自然条件下测定了这5种蝗虫在不同发育阶段的日食量。根据这5种蝗虫蝗蝻和成虫平均寿命及其日食量数据，估算了不同蝗虫造成的牧草损失，提出了其防治经济阈值(3龄蝻，头/m2), 其中：毛足棒角蝗Dasyhippus barbipes为22.7，小蛛蝗Aeropedellus variegates minutus为37.4，亚洲小车蝗 Oedaleus asiaticus为16.9，宽须蚁蝗 Myrmeleotettix palpalis为34.3，狭翅雏蝗Chorthippus dubius为36.7。
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| 关 键 词： | 蝗虫 典型草原 取食量 防治经济阈值 内蒙古 |
| 文章编号： | 0454-6296(2004)05-0595-04 |
| 修稿时间： | 2004年2月25日 |
The economic threshold for control of the major species of grasshoppers on Inner Mongolian rangeland |
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| QIU Xing-Hui,KANG Le,LI Hong-Chang.The economic threshold for control of the major species of grasshoppers on Inner Mongolian rangeland[J].Acta Entomologica Sinica,2004,47(5):595-598. |
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| Authors: | QIU Xing-Hui KANG Le LI Hong-Chang |
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| Abstract: | Grasshoppers are the most important invertebrate pests on rangelands in the Inner Mongolia, where control should be initiated in most regions. A reasonable economic threshold for grasshopper control is essential to the judicious deployment of insecticidal control and thus crucial to the success of integrated pest management. According to the daily food consumption assessed in semi-natural condition and the average longevity of nymphal instars and of adult calculated based on field population sampling data of five major species of grasshoppers, the economic thresholds (3rd instar, individuals/m~2) for controlling these grasshoppers by insecticide (malathion) on Inner Mongolian Steppe were suggested, i.e. 22.7 for Dasyhippus barbipes, 37.4 for Aeropedellus variegates minutus, 16.9 for Oedaleus asiaticus, 34.3 for Myrmeleotettix palpalis, and 36.7 for Chorthippus dubius. |
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| Keywords: | Grasshopper steppe food consumption economic threshold for control Inner Mongolia |
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