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杨树肿干溃疡病的发生规律及防治技术研究

JOURNAL OF SHANDONG FORESTRY SCIENCE AND TECHNOLOGY(2009)

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Abstract
杨树肿干溃疡病是首次在国内发现的一种新病害.是由枝顶孢菌(Acremonium sp.)和镰刀菌(Fusarium sp.)引起.症状为树干外部肿大、内部变色,有腐朽现象,易被风折,为害部位主要在主干2~3m之间,3~5年生的杨树发病严重.灭腐灵、甲基托布津对病原菌有较好抑制效果,大田防治效果均达到90%左右.B8、B7、B37生防细菌菌株对病原菌拮抗力较强.
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