BSV防治榨菜病毒病药效试验

Study on the Controlling Virus Disease by BSV in Stem Mustard(Brassica juncea var.tumida)

通过田间药效试验,明确了十字花科蔬菜专用抗病毒液BSV对榨菜病毒病的防效已经达到目前当家抗病毒农药的较好水平,在发病初期开始使用BSV500倍液2～3次效果比较明显,每次施药后10天调查防效均在50%以上。同时在大田定植后使用绿芬威3号等保健肥料,能提高榨菜对病毒病的抵抗能力。

The results of field trial showed the good control effect of specialized pesticide BSV against mustard(Brassica juncea var.tumida)virus disease.Spraying2-3times with BSV500times when virus started to make inroads on plant,the disease-controlling effect was over50%in10days after spraying.