The efficiency of a granular bait, hydramethylnon, and a pyrethroid, cyfluthrin, was evaluated against the Asian cockroach under field conditions. The experiment was conducted in Kiawah Island and Isle of Palms from 11 June to 8 November 2001. Both insecticides reduced the cockroach density in both locations. The toxic bait showed delayed activity on cockroach reduction. Although there was no difference for the rate of reduction between these two treatments in the first two weeks after treatment, mean comparison on trap catches indicated significant differences in cockroach catches between bait and liquid treatment sites at the first week after insecticide application. An increase in cockroach density occurred again during the third and fourth weeks after treatment and the densities decreased gradually afterward. Climatic conditions and normal seasonal declines in the population might influence this latter reduction.
Species 1: Blatteria Blattellidae Blattella asahinai (Asian cockroach)
Keywords: Asian cockroach
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