【摘要】 探讨了斜纹夜蛾发生期预测预报方法。根据斜纹夜蛾灯下成虫的发生期和田间幼虫发育进度,参考斜纹夜蛾各虫态发育历期与温度的关系以及历年同期平均气温,对下一代田间斜纹夜蛾发生期进行预测,预报结果与田间发生实况基本相符。更多还原

【Abstract】 According to the occurrence date of adults of Spodoptera litura trapped by lamp light and the developmental stage of larvae in the field,and consulting the relationship between growth duration and temperature,and the mean temperature in the same period of the past years,the occurrence date of S.litura was forecasted.And the forecasting result coincided with the real field occurrence.更多还原