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落叶松早期落叶病是我国北方落叶松人工林的重要病害,分布广,危害重。根据1978年烟剂科研协作会议精神,我们开展了新杀菌烟剂的研制,为工厂化生产提供科学依据。现将1978年筛选的几种新杀菌烟剂,对落叶松早期落叶病的药效试验初报如下: 一、新杀菌烟剂的筛选国外资料报道,内吸杀菌剂百菌清是一个广谱性的杀菌剂,做为熏烟剂,分解少于5%,是目前熏烟剂中有效成份分解最少的一种。因此,我们选了百菌清、五氯酚钠、硫黄供试;
Larch early deciduous disease is an important disease of Larix principis-rupprechtii plantation in North China, with a wide distribution and serious harm. According to the spirit of the Cooperative Conference on Tobacco Research and Research in 1978, we developed a new bactericidal and smoky tobacco agent to provide a scientific basis for industrialized production. Now 1978 screening of several new bactericidal smoke, the first report of the efficacy of early deciduous disease of larch as follows: First, the screening of new bactericidal smoke Foreign reports, the bactericidal fungicidal chlorothalonil is a broad spectrum Sex fungicides, as a fumigant, decomposition of less than 5%, is currently the most effective decomposition of the active ingredient in a kind of smoke. Therefore, we selected chlorothalonil, sodium pentachlorophenol, sulfur for testing;