周口市桃树烂根病的发生及防治

xiandai nongcun keji(2011)

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Abstract
由桃树根部病害引起的根部腐烂通称为烂根病。这类病害主要有桃树根朽病、桃树白绢病、桃树白纹羽病和紫纹羽病及桃树圆斑根腐病等。这五种病害在周口桃区常有发生,都会引起根系和根颈部腐烂,导致树木枯死,且在发病初期的地上症状较难鉴别,但随病情发展,病部症状才有差异。
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