Control of Adult Flies of Various Species with Cyfluthrin Mixed with Piperonyl Butoxide on Swine Farms

Abstract

Control trials of a synthetic pyrethroid, cyfluthrin, mixed with piperonyl butoxide as a synergist against adult flies of various species occurring in swine houses were carried out. Initially, 30 flies of each spacies ofMuscina stabulans, Fannia canicularis, andAldrichina grahami, collected in swine houses in Sagamihara-shi, Kanagawa Prefecture from October 1988 to July 1989, were respectively placed into six separate cages. One of the cages was assigned as a non-treated control, and another was sprayed with tap water at a volume of 50ml/m². The other four cages were sprayed with 100-, 200-, 400-, and 800-fold dilutions of a mixture, at a ratio of 1: 5 calculated as active ingredients, of cyfluthrin 5%(W/W) emulsion and piperonyl butoxide at a volume of 50ml/m². The drug had a very quick-acting and strong insecticidal effect on flies nearly 100% of which were incapacitated and killed. Secondly, three swine houses were sprayed with 200-, 400-, and 800-fold dilutions of the mixture at a volume of 50ml/m² in July of 1989. The efficacy of the 800-fold dilution was not quite adequate, but the other dilutions, especially the 200-fold dilution effectively exterminated five species of flies, Musca domestica, Muscina stabulans, Fannia canicularis, Aldrichina grahami, andLucilia illustrisoccurring in the houses. From these results, it was concluded that cyfluthrin mixed with piperonyl butoxide was effective against a variety of fly species occurring in swine houses.