The Field Efficacy Trial of 3% Hymexazol·Metalaxyl·Prochloraz FSC to Prevent Rice Seedling Blight and Bakanae Disease

Rice seedling blight and bakanae disease are major diseases of the rice seedling,3% Hymexazol·Metalaxyl·Prochloraz FSC could simultaneously against to the two diseases.In order to vertify its security on rice and control effect on rice seedling blight and bakanae disease,the field efficacy trials were carried out with rice variety Dongnong 428.The results showed that:It had no adverse effect on rice seedling emergence,seedling growth and maturity,it safety for rice and could increase rice yield remarkablely.The average control efficiency to rice seedling blight was more than 65%,the average control efficiency to rice bakanae disease was more than 85%;Before seed soaking,3% Hymexazol·Metalaxyl·Prochloraz FSC and seeds mixed with proportion of 1∶(40～60)were appropriate application period and dosage.