[Resistance to organophosphate, carbamate, and pyrethroid insecticides in Blattella germanica (Dictyoptera: Blattellidae) in 2 municipalities of the City of Havana].
We determined the resistance of 2 Blattella germanica strains collected in 2 municipalities of City of Havana--Playa (P) and Centro Habana (CH)--to six insecticides: malathion, pyrimiphos-methyl, propoxur, cipermetrine, deltametrine, and lambda cialotrine. The P strain showed resistance only to deltametrine (FR = 80); the CH strain was susceptible to propoxur and lambda cialotrine and resistant to malathion (FR = 12), pyrimiphosmethyl (FR = 13), cipermetrine (FR = 16), and deltametrine (FR = 100). Gene frequency of increased esterases and of the modified acetylcholinesterase was determined in the 2 strains. The values of increased esterases in the two collected strains were: P = 0.90; and CH = 0.91. Values of the modified acetylcholinesterase in the two strains were: P = 0.47; and CH = 0.12.
Instituto de Medicina Tropical Pedro Kouri.
C
C
Díaz
J A
JA
Bisset
T
T
González
M M
MM
Rodríguez
D000818:Animals; D002219:Carbamates; D003058:Cockroaches; D003462:Cuba; D007305:Insecticide Resistance; D007306:Insecticides; D009943:Organophosphorus Compounds; D011722:Pyrethrins
D002219:Carbamates; D007306:Insecticides; D009943:Organophosphorus Compounds; D011722:Pyrethrins
Resistencia a insecticidas organofosforados, carbamato y piretroides en Blattella germanica (Dictyoptera: Blattellidae) de 2 municipios de Ciudad de La Habana, Cuba.