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近几年来,我们在大面积药剂治螟工作中,深感现行的三化螟虫预测预报办法有提高的必要。当预测预报站向我们预报某日三化螟蛾即将开始盛发时,何日出现发蛾高峰我们不知道。当测报站向我们预报某日即将出现发蛾高峰时,以后会不会还有高峰出现,何日出现,那一个高峰发蛾数量最多,危害最大,我们都不知道。由于不能一次摸清螟虫的
In recent years, we are deeply aware of the current need to improve forecasting methods for stem borers in the area of large-scale chemical control stem borers. We do not know when there is a peak of hair moth when the forecasting and forecasting station forecasts to us that the moth will start to flourish soon. When the newspaper station reported to us the imminent emergence of the hair moth peak, will there be any other peaks in the future? When will those days occur? The peak number of moths is the highest and it is the most harmful. We all do not know. As can not find out the stem borers