Tests of cockroach control with UV radiation : II. A field test on the German cockroach

Abstract

To investigate the possibility of cockroach control with UV radiation in a natural habitat, population fluctuation of the German cockroach before and after setting of 10W germicidal lamps was examined by the mark-recapture method. The population size at each census was calculated by Jolly-Seber's triple catch method. Results indicated that the population density decreased to about 1/13 within a month. The control effect was different among the places where the germicidal lamps were set.