Estatus fitosanitario de picudos en el cultivo de chontaduro Bactris gasipaes Kunth, mediante trampas artesanales de guadua, en el municipio Villagarzón, Putumayo.

Abstract

The objective of this undergraduate work was to know the phytosanitary status of weevils (Curculionidae) in plantations of chontaduros B. gasipaes in Villagarzón, Putumayo. Through the installation in three farms of 20 artisanal guadua traps baited with pieces of sugar cane fermented for 48 hours in a 1: 2 solution (molasses: water). Weevils were collected for 11 consecutive weeks to obtain data on weevils / week / farm. The data were transformed to √x + 1, subjecting them to a simple Anova and a Tukey Test (p ≤ 0.05), for comparison of means. The presence of nine species of curculionidae was determined. A total of 1528 adults of 9 different species were captured, the largest collection being in the Karla farm with 709 adults, with an average of 64.45 adults / week, followed by the El Porvenir farm with 457 adults, with an average of 41 , 54 adults / week and finally the Arizona farm with 362 weevils with an average of 32.90 adults / week. On the Karla and Arizona farms, significant differences were found between M. hemipterus and the other species present; while in the El Porvenir farm no significant differences were detected between the captured species. The species captured were Metamasius hemipterus L., M. hebetatus, M. dasyurus, M. submaculatus, Metamasius hemipterus (morphotypes), R. palmarum and D. borassi were captured in the Karla and El Porvenir farms; while in the Arizona farm, in addition to the previously mentioned species, the species M. dimidiatipennis and R. barbirostris were captured.