| 甜菜夜蛾种群消长规律及其在预测预报上的应用 |
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| 引用本文： | 姚士桐,郑永利,陈国祥,陈利英.甜菜夜蛾种群消长规律及其在预测预报上的应用[J].江西农业学报,2008,20(7):65-66. |
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| 作者姓名： | 姚士桐 郑永利 陈国祥 陈利英 |
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| 作者单位： | 1. 浙江省海宁市植保土肥技术服务站,浙江,海宁,314400
2. 浙江省植物保护检疫局,浙江,杭州,310020 |
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| 摘 要： | 采用性诱剂诱集的方法观察了甜菜夜蛾的自然种群消长规律,发现其成虫发生高峰期在8-10月份;进行相关数理统计及回归分析后发现,甜菜夜蛾成虫旬诱集量与前2旬或3旬的累计诱集量、累计平均气温、平均温湿系数等因子存在极显著的相关性,并可用相应的线性回归方程来表述。因此可利用这些因子来预测甜菜夜蛾成虫的发生数量。
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| 关 键 词： | 甜菜夜蛾 种群消长 预测预报 |
Population Dynamics of Laphygma exigua Hübner and Its Application in Forecasting and Prediction |
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| YAO Shi-tong,ZHENG Yong-li,CHEN Guo-xiang,CHEN Li-ying.Population Dynamics of Laphygma exigua Hübner and Its Application in Forecasting and Prediction[J].Acta Agriculturae Jiangxi,2008,20(7):65-66. |
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| Authors: | YAO Shi-tong ZHENG Yong-li CHEN Guo-xiang CHEN Li-ying |
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| Institution: | YAO Shi - tong, ZHENG Yong - li, CHEN Guo - xiang , CHEN Li - ying (1. Haining Technical Service Station of Plant Protection and Soil Fertility, Haining 314400, China; 2. Plant Protection ＆ Quarantine Bureau of Zhejiang Province, Hangzhou 310020, China) |
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| Abstract: | The population dynamics of Laphygma exigua Hübner was investigated using sex pheromone traps.The results revealed that the peak density period of adult of L.exigua was from August to October,adult trapping number was significantly correlated with the accumulative adult trapping number in the previous two or three ten-day periods of a month,the accumulative average air temperature and the coefficient of average temperature and relative humidity by mathematical statistics method and regression analysis.Furthermore,the above relations could be well described by linear regression equation.Therefore,these impact factors could be used to forecast the adult numbers of L.exigua. |
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| Keywords: | Laphygma exigua Hübner Population dynamics Forecast |
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