不同施药时期对烟草黑胫病的控制效果研究
Plant Doctor(2018)
Abstract
为寻找有效控制烟草黑胫病发生的最佳用药时期,避免重复多次用药,在烟草生长的3个关键时期,即移栽期、黑胫病发病初期和团棵期,用72%精甲霜·锰锌可湿性粉剂800倍液灌根处理,比较各处理的发病率、病情指数和防效.结果表明,移栽期和发病初期用72%精甲霜·锰锌可湿性粉剂800倍液处理,对黑胫病的防治效果分别为96.34%和96.58%;团棵初期用72%精甲霜·锰锌可湿性粉剂800倍液处理,对黑胫病的防治效果为0.
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