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以往我们使用糖醋诱蛾法,按每天诱蛾量作出消长曲线——基准曲线,据此预测第一代粘虫发生期。但在实际应用上有一定偏差,效果并不好。据外地报导,可能是由于蜜源干扰的缘故。为此,本站于一九七四年将糖醋诱蛾与小草把诱卵法同时应用,并加以比较、分析。结果证实小草把诱卵法比糖醋诱蛾法更接近实际。于是,一九七五年省去糖醋诱蛾,单用小草把诱卵来预测。现将有关材料总结如下。
In the past, we used the sweet and sour lure method to make the growth curve-the baseline curve according to the amount of lure per day, and predict the occurrence of the first generation of armyworm. However, there is a certain deviation in practical application, the effect is not good. According to field reports, it may be due to the interference of honey sources. To this end, this site in 1974 will sweet and sour lure moths and grass to the law of ovulation at the same time, and to compare and analyze. The results confirmed that the grass to the oviposition method than the sweet and sour approach is closer to reality. As a result, in 1975 save the sweet and sour lure moth, alone to predict eggs ovulation. The relevant materials are summarized below.