STUDY ON THE TRAPPING EFFECT OF PHEROMONE FOR SITOPHILUS ORYZAE、ORYZAEPHILUS SURINAMENSIS

Successive air collecting method was used to collect the aggregation pheromone of Sitophilus oryzae and Oryzaephilus surinamensis,and the extractions were washed with n-hexane.Disc trap bioassays were carried out to investigate the best does of attractants,results showed that the does for Sitophilus oryzae is 40 μL,for Oryzaephilus surinamensis it is 50 μL.The pheromone extraction from Sitophilus oryzae had better trapping effect for female adult than that for male adult,the mixture of two pheromones(1:1) could trap Sitophilus oryzae and Oryzaephilus surinamensis effectively.In general,the pheromone extraction from one pest had remarkably trapping effect for the same pest,but there was no trapping effect for other stored-product pests,