Evaluación del efecto de biopreparados para el control del pulgón negro (Aphis fabae S.) bajo condiciones de laboratorio

Abstract

The investigation was, carried out with the purpose of evaluating two biopreparations, M5 and Apichi in three doses: 5 cc/L, 7.5 cc/L, 10 cc/L, for the control of black aphids (Aphis fabae S.). Which was carried out in the Entomology Laboratory belonging to the Technical University of Ambato, Faculty of Agricultural Sciences, located in the Cevallos canton, Tungurahua province. For the evaluation, a completely randomized block design (DBCA) was applied in three repetitions in a 2x3+1 factorial arrangement, Tukey's significance tests were carried out at 5%, where the following results were obtained: for the mortality rate variable, the biopreparation that presented the highest efficiency was M5 with the application dose of 10 cc/L, producing a mortality rate of 90.33%, regarding the repellency percentage variable, the biopreparation with the highest Efficiency was the Apichi with the application dose 10 cc/L producing a repellency percentage of 60%, for the longevity variable the two biopreparations affected the survival of the aphid 72 hours after applying the treatments, only one long-lived survivor was evidenced