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近年来,我省在防治森林病虫害方面虽然做了许多工作,但森林病虫害仍然比较严重,且有所发展,对森林危害很大。松毛虫是我省近年来最大的森林害虫,全国有十八种松毛虫,我省就有七种,严重
In recent years, our province has done a lot of work in the prevention and control of forest pests and diseases, but forest pests and diseases are still relatively serious, and some developments have caused great harm to the forests. Dendrolimus is the largest forest pest in our province in recent years, the country has 18 kinds of pine caterpillars, there are seven kinds of our province, serious