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如何综合治理松毛虫文／何德云黄超纲余胜生综合治理松毛虫主要技术措施如下：１．大力营造混交林：多年来的情况表明，病虫猖獗成灾多起源于大面积纯林地区。实行多树种混交，同时重视保留林内植被，种植蜜源植物，尽量避免营造大面积纯林，特别是森林旅游地区尤为重要。...
How to comprehensively deal with Dendrolimus / He Deyun Huang Chaogang Yushengsheng Comprehensive management of the main technical measures of pine caterpillars are as follows: 1. Vigorously create a mixed forest: The situation over the years shows that rampant pest and disease originated in large areas of pure forest area. Implementation of multi-species mixed, while retaining the importance of retaining the forest vegetation, planting nectar plants, as far as possible to avoid creating large-scale pure forests, especially forest tourism areas is particularly important. ...