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利用重庆市秀山县1990-2006年褐飞虱的田间、灯下虫情及气象资料,以田间发生高峰期的调查数量为因变量,以灯下诱集虫量和气象因子为自变量,用多元逐步回归法组建了褐飞虱在不同时期的发生量预测模型,并利用该模型对重庆市秀山县褐飞虱主害期的发生量进行预测检验.结果表明:褐飞虱田间发生高峰期的发生量不仅与气候条件有关,且与灯下虫量有关,并得出与近期灯下总虫量成正相关,而与具有繁殖能力的雌成虫呈负相关.
Using the number of brown planthoppers in the Xiushan County of Chongqing City from 1990 to 2006, the number of the surveyed pests and meteorological data were taken as the dependent variables. The quantity of trapped parasites and the meteorological factors were used as independent variables. Regression model was established to predict the occurrence of BPH in different periods and the model was used to predict the occurrence of BPH in the main period of BPH in Xiushan County of Chongqing.The results showed that the occurrence of BPH in the field was not only related to climatic conditions , And was related to the amount of lampworms and was positively correlated with the total amount of lampworms under the lamp but negatively correlated with the reproductive ability of the female adults.