Efficacy of Two Dursban Formulations in the Reduction of German Cockroach Field Populations, 1983

German cockroach, Blattella germanica L., infested homes managed by the Omaha Tribal housing Authority, were treated with a water emulsion containing either 0.5% Dursban 4E or 0.5% Dursban L.O. insecticide. Cockroach population density was quantified through the use of Mr. Sticky sticky traps. Before the insecticide application one trap was placed in each of the following locations: under kitchen sink, adjacent to stove, behind each toilet, and adjacent to furnace in homes with a basement. After one night the traps were retrieved and the cockroaches caught counted. This baseline cockroach count was compared to subsequent one-night catches made at monthly intervals following the application of the insecticide treatment. Insecticide treatments were applied with a B&G sprayer system operated at 137.9 kPa (20 lb/in2) fitted with a fan spray nozzle and using a banding application technique.