Abstract: Laboratory determination on the toxicity of sumicidin,isoprocarb,dicofol,thiocyclam,dimethoate and glyphosate to Haemadipsa hainana showed that LD 50 for the six pesticides followed the order of sumicidin>isoprocarb>dicofol>thiocyclam>dimethoate,but glyphosate was not virulent.“Glyphosate+sumicidin”had much more toxicity.The susceptibility of H.hainana to sumicidin differed in the order of adult>juvenile>subadult.Field tests showed that the control effect of 1.5% sumicidin to H.hainana was 95.08% of total number of its population.Applied tests showed that the control effect of “Glyphosate+0.5% sumicidin” was 94.7%,and “glyphosate+1% isoprocarb”was 90.5%.“Glyphosate+pesticides”was more effective both in controlling H.hainana and in destroying its habitat weed.