对2004-2011年古浪县甜菜象甲的调查结果及气象资料进行分析表明,甜菜象甲虫量的大小、出现的迟早,与4-5月气温和4-5月降雨量有密切关系.越冬成虫出土盛期在4月下旬至5月中旬,甜菜象甲盛发期平均虫量(y)与4-5月平均气温(X1)和4-5月平均降雨量(X2)之间的回归方程为:y=-9.467 2+1.69X1-0.068X2(R=0.97**),根据此方程可以预测甜菜象甲成虫发生量.%The occurrence of Bothynoderes punctiventris Germ.was investigated,and the meteorological data were analyzed in Gulang County from 2004 to 2011.The results showed that the amount and occurrence date of the beet weevil were closely related to temperature and rainfall from April to May.The peak appearance of overwintering adults ranged from late April to mid-May.When the average quantity of beet weevil during peak appearance period (Y),the average temperature in April and May(X1)and the average rainfall in April and May (X2) were taken into account,the regression equation was concluded:Y =-9.467 2 + 1.69X1-0.068X2 (R =0.97 **).Based on the forecasting equation,the occurrence amount of adults could be calculated and predicted.
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