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猕猴桃根结线虫什么样

更新时间: 2020-09-29 00:00:00     

猕猴桃根结线虫病主要为害根系。病株根系萎缩,受害新根上形成大小不等、圆形、单个或呈念珠状的根瘤,或数个愈合成根结团。根瘤初期色泽与新根同色,表面光滑,后色泽逐渐加深呈黑色,终至腐烂。成株受害、树势衰弱、发梢少而纤弱、长势不旺、叶片发黄、提早落叶、结果少、果小、僵硬、品质差、抗其他病害能力下降。

关键词: 猕猴 桃根 什么样

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