丁硫克百威对白背飞虱和南方水稻黑条矮缩病的防治研究

为明确丁硫克百威拌种剂对水稻白背飞虱和南方水稻黑条矮缩病的防治效果及其对天敌的影响,选择不同剂量的35%丁硫克百威种子处理干粉剂进行拌种。结果表明:剂量是30 g/kg种子拌种可有效防治白背飞虱,在播种后32 d、43 d、50d和57 d的防效分别为:90.6%、78.4%、67.9%和61.1%;同时通过防治白背飞虱减少传毒媒介,能有效控制南方水稻黑条矮缩病的危害,防效为76.9%。

Effect of Carbosulfan on White -back Pianthopper and Sowthern Black -streaked Dwarf Virus of Rice

In order to define the effect carbosuifan bud on white -backed planthopper and rice dwarf virus disease prevention of rice, choose different doses of 35% carbosulfan.The results showed that the dose of 30 g/kg could can be effective prevention of white -backed planthopper,32 d after sowing,43 d,50 d and the control effect of 57 d respectively:90.6%,78.4%,67.9% and 78.4%;At the same time through the prevention and control of white -backed planthopper reduce the toxic medium,can effectively control the harm of south dwarf virus disease black of rie,control effect is 76.9%.