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目前,生产上油松立枯病仍在严重地威胁着油松育苗任务的完成,一旦病害发生,仍采用喷洒五氯硝基苯、代森锌、硫酸亚铁等防治措施。为了贯彻防重于治的原则,采用改进林业技术措施,培养无病壮苗,十分必要。中国林科院病理室王增恩先生于1952—56年在本圃作了油松立枯病病原菌的分离、培养和生物学特性的研究工作。为1960年以来我圃采用改进林业技术措施为主的防治方法,提供了理论依据。21年来应用此
At present, the production of Pinus tabulaeformis is still a serious threat to the completion of the task of Pinus tabulaeformis seedlings, once the disease occurs, spraying pentachloronitrobenzene, dexamethasone, ferrous sulfate and other control measures are still used. In order to implement the principle of preventing duplication of efforts, it is absolutely necessary to adopt improved forestry technical measures to cultivate disease-free and strong seedlings. Mr. Wang Zeng’en, Department of Pathology, Chinese Academy of Forestry, conducted the research on the isolation, culture and biological characteristics of the pathogen of damping-off of Pinus tabulaeformis in this garden in 1952-56. This has provided a theoretical basis for the prevention and treatment methods adopted by improving forest technology measures since 1960. 21 years to apply this