Evaluación del uso de feromonas para el manejo de Plutella xylostella en el cultivo de brócoli (Brassica oleracea var. italica) en la hacienda de Huapante, Tungurahua

Abstract

The diamondback moth (Plutella xylostella L.) is a pest that attacks the brassica family, causing a reduction in seed head size and product quality. Its main characteristic is the generation of resistance to systemic insecticides. Therefore, the use of new alternatives for the control of this insect is essential. This research was conducted at Hacienda Huapante, in the Píllaro canton, Tungurahua province, on broccoli (Brassica oleracea var. italica) Avenger variety crops. Two types of pheromones (Chemtica and Pherobank) were used in a combination with one sticky trap and two yellow sticky traps. The best results were obtained with pheromone 1 (Pherobank), especially with the combination of two sticky traps, since at the end of the trial, 669 male diamondback moth insects were collected. In contrast, pheromone 2 (Chemtica) in combination with two sticky traps managed to capture a maximum total of 285 male diamondback moths over a two-month period. These results are attributed to the concentration of the active ingredient in each pheromone, since, in the case of pheromone 1 (Pherobank), it has 2.9 g A.I./kg, compared to pheromone 2 (Chemtica), which only has 0,746 g A.I./kg