Efficacy of Sulfuryi Fluoride on Stored Grain Pests in a Warehouse Trial in China

摘要

Sulfuryl Fluoride is widely applied and is considered as a feasible substitute for methyl bromide in many countries. Efficacy of sulfuryl fluoride on stored grain pests,including R. dominica,S.oryzae, and T. castaneum, in a warehouse trial were undertaken in Guangzhou City of Guangdong Province,China in May 2006. According to the trial results, the doses of 40-5 g/m3with 48h-7d exposures gave complete mortality of adults,larvae and pupae of insect species, but couldn' t complete control eggs. After exposed to sulfuryl fluoride 30-40 g/m3 for 48 h, the sulfuryl fluoride residues in paddy,flour,wheat, milk, rice were below the maximum levels in food premises. It is concluded that sulfuryl fluoride is an effective fumigant for control stored grain pests in China. These results will support sulfuryl fluoride product for registration.