关键词: 硫酰氟, 溴甲烷, 联合熏蒸, 药效试验

Abstract: Objective To study the effect of combination fumigation of sulfury fluoride and methyl bromide on km mice. Periplaneta arnericana and Escherichia coli,Staphylococcus aureus and pseudomonas aeruginosa. Methods Field analogue experiment of drug effect based on the investigation of practical effect of available insecticides used for sanitary treatment of containers. Results The effect of combination fumigation of sulfury fluoride and methyl bromide was observed to show that when the concentrations of sulfury fluoride and methyl bromide were 10.55 g/m ³ ,20.25 g/m³separately,and the time of closing containers'gates was 11 hours,their killing rates were 100% for KM Mice andP.americana. And the incubation rate ofP.americana eggs was 0% ,too. The lowest concentrations of sulfury fluoride and methyl bromide,and the shortest time of closing containers'gates were 18.75g/m ³ ,36.00g/m³,16.67 h respectively under the condition of 37.5 ℃ and 54% for relative humidity,on which their killing rates were 100% for KM Mice,P.americana,P.americana eggs,Escherichia coli,Staphylococcus aureus and P.aeruginosa. Temperature and relative humidity were influence factors on sanitary treatment of containers. And it was easier to kill KM Mice and insect than to kill germ. Conclusion Combination fumigating containers using sulfury fluoride and methyl bromide could increase the effect of sanitary treatment obviously,which would decrease the quantity of methyl bromide.