Evaluación de la eficiencia de protección del bioinsecticida Bacu-Turin al ataque del complejo de polillas, en sistemas de manejo de semilla de papa de los agricultores del cantón Paute

Abstract

The present research was carried out in the Bulán, Dug Dug and Tomebamba parishes of the Paute-Azuay-Ecuador canton, with the following objectives: 1) To identify potato seed storage systems; 2) To determine the density of moth species in the field and 3) To evaluate the protection efficiency of the Bacu-Turin bioinsecticide, to the attack of moths in potato storage systems. In the first objective, it was established that 36.22% of farmers store the seed in the hold, 20.46% in corridor and 43.32% in other places (hut, garage, and pampa). For the second objective; of moth monitoring in the field, the presence of Tecia solanivora (8.09%), Symmetrischema tangolias (53.40%) and Phthorimaea operculella (38.51%) were determined. The highest number of moths was Dug Dug (46.18%), the lowest area (2500-2800m s.n.m) with the highest incidence (82.55%), with Symmetrischema predominating (51.10%). Of the monitoring of moths in warehouse, Symmetrischema also prevailed. In the third objective (experiment with Bacu-Turin) for the variable incidence of moth attack, 39.29% corresponded to the winery system and 25.58% to the runner system; For Bacu-Turin concentrations: C1 = 26.44%; C2 = 21.44%; C3 = 12.78% and T = 59.06% incidence, being statistically different from each other. In the variable moth attack severity, there were no statistical differences for storage systems either for concentrations, but there were differences between treated potato group and control. The lowest percentage for moth incidence (7.44%) obtained in the corridor storage system with the highest concentration of Baku-Turin (S1C3) was the best economic option