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滅多威硫雙威保護(hù)性殺菌劑
date:2017/2/22   
保護(hù)性殺菌劑主要作用方式是在施藥后,在植物表面形成一層藥膜,使病菌不能被侵染。此類殺菌劑對(duì)氣流傳播病菌尤為有效,如用波爾多液防治多種作物的霜霉;對(duì)植物種子或幼苗進(jìn)行處理,可防治種傳病害的侵染,如三唑酮拌種可防治禾谷類黑穗病;多菌靈浸蘸甘薯幼苗防治苗期病害;福美雙、多菌靈土壤處理可防治多種作物的土傳病害,如猝倒病和立枯病等。


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