在稻螟测报中,通过田间查卵只能获悉当天的卵块相对孵化率,对于这一天的绝对孵化率,则要在全代蛾子产卵结束后,根据系统调查资料才能计算出来。如果我们要用卵块孵化进度来验证预测的发生期,就要等到产卵结束后,这样对于判断防治适期是否可按预报方案进行为时太晚。为了运用田间 In the rice borer test report, through the field of ovulation can only know the day’s egg relative hatching rate, for the absolute hatching rate of the day, then in the generation moth spawning ends, according to the system survey data can be calculated. If we want to use the egg hatching schedule to verify the predicted period, it is necessary to wait until the end of the spawning, so as to determine whether the pre-treatment program can be carried out according to forecasting program too late. In order to use the field