预测预报是防治工作的耳目,只有全面了解虫情,预先掌握害虫的发生动向,才能做到防治主动、及时,打得准、打得狠。但实践证明,要使测报工作做得准确及时,必须依靠广大群众。因而所采用的测报方法不宜繁琐复杂,要通俗简便,易于群众掌握。为了摸索出一种测报油松毛虫的简便方法,近年来我们根据油松毛虫在黄龙林区的发生 Prediction and forecasting are the eyes and ears of prevention and control work. Only when we have a comprehensive understanding of the pest situation and prioritized the pest occurrence trends can we take the initiative and timely prevention and punishment and fight hard. However, practice has proved that in order to make accurate and timely reporting and reporting work, we must rely on the broad masses of the people. Therefore, the reporting method used should not be cumbersome and complex, to simple and easy, easy to grasp the masses. In order to explore a simple method of measuring oil pine caterpillars, in recent years, we based on the occurrence of oil pine caterpillar in Huanglong forest area