Evaluación de la fluctuación de Bactericera cockerelli Sulc. y polillas en cultivos establecidos de papa (Solanum tuberosum L.) en tres localidades de Guamote.

Abstract

The objective of this research work was to evaluate the fluctuation of Bactericera cockerelli Sulc. and moths in established potato (Solanum tuberosum L.) crops in three localities of the Guamote canton. The fluctuation of the adult population of Bactericera cockerel was determined using four monochromatic traps located at the edges of the crops. For nymphs and eggs of Bactericera cockerelli, leaf samples were collected, and it was used an entomological net. The samples were transported to the laboratory of the Group for the development of technologies, for the reduction and rationalization of agrochemicals, for identification and counting of Bactericera cockerelli in its distinct stages, and for the identification of possible natural enemies, and it was stored in 70% ethyl alcohol. It was used two pheromone traps specifically for each moth species to evaluate the fluctuation of the moth population. Bactericera cockerelli and potato moth data were considered with the Epicollect-5 application. For the statistical analysis, it was used descriptive analysis, an analysis of variance at a significance level of 5% on Tukey's mean comparison test. It was found that there is no significant difference in the three localities for Bactericera cockerelli, Atapos Santa Cruz presented the highest population with 139 eggs and 37 nymphs, while moths presented significant differences in San José de Chacaza and Palmira, with the highest population in Palmira with 45 insects of T. solanivora and 31 insects of P. operculella. No entomopathogens of Bactericera cockerelli and moths were detected. It was concluded that Bactericera cockerelli and potato moths developed in the lower part of the Guamote canton. It is recommended to use more efficient traps to capture this type of insect.