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建国以来,在马尾松毛虫的防治上,无论是生物防治还是化学防治,都有了一套较为完整的技术,然而,松毛虫不但没有得到有效的控制,反而大发生的周期越来越短。这是什么原因呢?从客观上讲,由于森林资源遭受破坏,导致生态环境的改变,松林自身的抗虫能力弱了。从主观上讲,主要是管理上的失误,集中表现在虫情掌握不准确,防治不适时。过来,不少领导包括部分森防干部,对预测预报工作的重要性认识不足,没有将它摆在应有的位置。一方面是测报人员太少。一个县方圆几百里,松林面积几十
Since the founding of the People’s Republic of China, there has been a relatively complete set of techniques for the prevention and control of Masson pine caterpillars, either biological control or chemical control. However, not only has the pine caterpillars not been effectively controlled, but the cycles that occur greatly have become shorter and shorter. What is the reason for this? Objectively speaking, due to the destruction of forest resources, leading to changes in the ecological environment, Songlin its own insect resistance weak. From a subjective point of view, it is mainly a management mistake that focuses on inaccurate control of insects and prevention and treatment of discomfort. Over, many leaders, including some defense cadres, lacked an understanding of the importance of forecasting and did not put it where they should. On the one hand, there are too few reporters. Hundreds of miles in a county, dozens of pine forest area