[Sensitivity to dimilin (diflubenzuron) in a strain of Aedes (S) aegypti Linnneaus, 1762 and of Culex (C) quinquefasciatus Say, 1823 bred in the laboratory].

This paper studies the degree of sensitivity of larval Aedes (S) aegypti Linneaus, 1762 and Culex quinquefasciatus, Say, 1823, to dimilin (diflubenzuron-urea) with strains from Güines, in Havana province, which were bred in the laboratory. Tests were carried out in the period ranging from March, 1982 to March, 1983. The method used was the one standardized by the World Health Organization in 1980. The authors found susceptibility of A. aegypti to the product used with values of CL50 and CL95 of 0.045 mg/L and 0.255 mg/L respectively as well as physiologic resistance in Culex quinquefasciatus.