对死亡松树研究的表明,松褐天牛等蛀虫是在松树在死亡过程中侵入的,而且许多死亡松树还未遭松褐天牛等蛀虫侵入,所以松褐天牛不是松树大量死亡的原因。在松树大量死亡的重灾林中,松针牡蛎蚧、松粉蚧、草履蚧、棒毛小爪螨、针叶小爪螨、松球蚜和松蚜等是松树的主要害虫,它们单独或其中两虫或多虫交替、同时或反复大发生侵害枝叶和新梢,严重影响营养与水分的产生、运输,导致根系与枝叶首先死亡,然后整株松树死亡。作者提出了防治松树大量死亡的对策与技术。 Studies on the death of pine have shown that pine and other borers are invaded during the death of pine trees, and many of the dead pine trees have not yet invaded by borers such as Monochamus alternatus, so Monochamus alternatus is not the reason for the large number of pine trees died. Pine cedar oyster scales, mealybugs scale, grass scales, small clubbing mites, small needle mites, pine aphids and pine aphids are the major pests of the pine in heavily cedar forests where pine trees have died in large numbers, either alone or in Two insects or more insects alternately, at the same time or repeatedly violated the branches and shoots, seriously affecting the nutrition and water production, transportation, leading to root and foliage first death, and then the whole plant died. The author put forward the countermeasures and technologies for preventing and controlling pine mass mortality.