林木害虫预测、预报工作,就是根据害虫的生物学特性,预报出林木害虫在短期、中期或几年后某一害虫大发生的可能性,以及反对它的起着重大影响的各主导因素来预先推测它的动态。我们在同林木害虫的斗争中,首要的问题是正确地掌握害虫的数量变化和其它各种因子之间的相关性,从中找出害虫的发生发展观律。利用这种规律,就可以推测出当年或几 Forest pest forecasting and forecasting is based on the biological characteristics of pests to predict the possibility of forest pests in the short term, medium term or a few years after the occurrence of a pest, as well as the major factors that oppose it have a significant impact to advance Speculate on its dynamics. In our struggle against forest pests, the primary issue is to correctly grasp the correlation between the changes in the number of pests and other various factors, and to find out the law of pest occurrence and development. Using this law, we can guess the current year or a few