松梢螟属于鳞翅目螟蛾科,是一种分布极广、危害严重的次期性森林害虫,主要在立地条件差、林分郁闭度小、树木生长不良或是受到其它病虫先行侵害后使树势衰弱的3—10年生的中幼龄林中发生。因该虫有钻蛀枝梢、隐藏危害的生活习性,很难被人们早期发觉并引起重视。直到虫口聚积到相当大的数量,整个林分内松树顶梢几乎全被危害,弯曲、下垂,远看一片枯黄,似被火烧时,方能发现,此时破害林木大部分已挽救无望,少数即使能侥幸存活,树干也是弯来扭去,不成材了。由此可见,松梢螟对森林的危害是很严重的。虽然如此,但只要能及时掌握它的发生发展规律,搞好预测预报,就能进行及时有效的防治。 Moth is a Lepidoptera Pyralidae family, is a widely distributed, endangering serious secondary forest pests, mainly in the poor site conditions, stand canopy density is small, poor or poor growth of trees by other pests and diseases After the tree weak potential 3-10 year old medium-aged forest occurs. Because of the insects have drilled branches, hidden dangers of life habits, it is difficult to be found early and people pay attention. Insect until the accumulation of a considerable number of the entire forest pine tops almost all the damage, bending, sagging, far look at a yellow, seems to be burned, only to find that most of the time to destroy the trees have been saved hopeless, Even if the few survive by luck, the trunk is also twisted, not worth anymore. Thus it can be seen that the damage caused by the pine needles to the forest is very serious. Nevertheless, as long as it can timely grasp its occurrence and development laws and improve forecasts and forecasts, we can conduct timely and effective prevention and treatment.