柑桔黄龙病防治方法物理防治法

黄龙病的传染方式是通过亚洲柑橘木虱的昆虫传染,病发前几个月,约20天喷施一次温膜30,可在作物表面形成一层膜,这层膜可阻止病菌扩散。 为防止根部病害,可100——150倍液灌根。

Added by admin November 28, 2016 (11:28AM)

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