Resistance to insecticides in Bemisia tabaci and Trialeurodes vaporariorum (Homoptera: Aleyrodidae) in Colombia y Ecuador
Main Article Content
Trialeurodes vaporariorum (Westwood) and the A and B biotypes of Bemisia tabaci (Gennadius) are the most important whiteflies affecting annual crops in Colombia and Ecuador. Levels of resistance to organophosphate, carbamate, and pyrethroid insecticides in adults of these species were studied across 40 locations in Colombia and Ecuador. Using the vial technique, line base data and CL50 and CL50 values were calculated for methamidophos, methomyl, and cypermethrin under laboratory conditions. Diagnostic dosages were established and these were used to monitor resistance in the field, also using the vial technique. Corrected mortalities at diagnostic dosages were compared by means of the analysis of variance. T. vaporariorum exhibited low resistance to methomyl, high resistance to methamidophos in most locations studied, and intermediate to high resistance to cypermethrin in 9 locations. The B biotype of B. tabaci was very resistant to methomyl in 9 of 10 locations sampled and highly resistant to methamidophos across the region known as the Atlantic Coast of Colombia. It showed intermediate resistance to cypermethrin in 3 locations in the Atlantic Coast. insecticide resistance levels are discussed in relation to the difficulties in managing whiteflies in the Andean zone. Baseline data for T. vaporariorum for carbofuran, lambda• cyhalothrin, and imidacloprid are presented for future reference.
- ISAURA V. RODRÍGUEZ, CÉSAR CARDONA, Problems related to the incidence of whiteflies as pests of annual crops in the cauca Valley of Colombia , Revista Colombiana de Entomología: Vol. 27 No. 1 (2001)
- ARISTÓBULO LÓPEZ-ÁVILA, CÉSAR CARDONA-MEJÍA, JAVIER GARCÍA-GONZÁLEZ, FRANCISCO RENDÓN, PILAR HERNÁNDEZ, Survey and identification of natural enemies of whiteflies in Colombia and Ecuador , Revista Colombiana de Entomología: Vol. 27 No. 2 (2001)
- RANULFO GONZÁLEZ, CÉSAR CARDONA, BIOLOGY OF Cerotoma facialisl COMMON BEANE PEST, Phaseolus vulgaris L. , Revista Colombiana de Entomología: Vol. 5 No. 1-2 (1979)
- JUAN MIGUEL BUENO, CÉSAR CARDONA, Biology and habits of Thrips palmi (Thysanoptera: Thripidae) as a pest of dry beans and snap beans , Revista Colombiana de Entomología: Vol. 27 No. 1 (2001)
- CONSTANZA QUINTERO, FRANCISCO RENDÓN, JAVIER GARCÍA, CÉSAR CARDONA, ARISTÓBULO LÓPEZ-AVILA, PILAR HERNÁNDEZ, Species and biotypes of whiteflies (Homoptera: Aleyrodidae) affecting annual crops in Colombia and Ecuador , Revista Colombiana de Entomología: Vol. 27 No. 1 (2001)
- EDISON VALENCIA, CECILIA PLATA, CARLOS CORREDOR, CÉSAR CARDONA, ENZYMATIC RESISTANCE TO INSECTICIDES IN LARVAE OF Heliothis virescens (Lepidoptera: Noctuidae) , Revista Colombiana de Entomología: Vol. 19 No. 4 (1993)
- BLANCA IRENE VARGAS-A., SILVIA ALEJANDRA RUBIO-C., ARISTÓBULO LÓPEZ-ÁVILA, Studies of the habits and behavior of the Guatemalan potato tuber moth Tuda solanivora (Lepidoptera: Gelechiidae) in stored potato , Revista Colombiana de Entomología: Vol. 30 No. 2 (2004)
- CÉSAR CARDONA, ADELA RODRÍGUEZ, PEDRO C. PRADA, ACTION THRESHOLD FOR THE CONTROL OF THE WHITE FLY OF THE GREENHOUSES, Trialeurodes vaporariorum (Westwood) (Homoptera: Aleyrodidae), IN GREEN BEANS , Revista Colombiana de Entomología: Vol. 19 No. 1 (1993)
- JUAN MIGUEL BUENO, CÉSAR CARDONA, PATRICIA CHACÓN, Phenology, spatial distribution and development of sampling methods for Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae) on snap beans and beans (Phaseolus vulgaris L.) , Revista Colombiana de Entomología: Vol. 31 No. 2 (2005)
- CARMEN ELISA POSSOL, CÉSAR CARDONA, JOSÉ F. VALOR, HÉCTOR MORALES, DEVELOPMENT OF BEAN RESISTANT LINES TO Zabrotes subfasciatus (Boheman)) (COLEOPTERA: BRUCHIDAE) , Revista Colombiana de Entomología: Vol. 18 No. 1 (1992)
Authors retain the copyright on their work and are responsible for the ideas expressed in them. Once a manuscript is approved for publication, authors are asked for a publication license for the term of legal protection, for all territories that allows the use, dissemination and disclosure of the same.