PRODUTIVIDADE DA BATATA NO CERRADO GOIANO INFLUENCIADA POR TRATAMENTOS DE PROTEÇÃO FITOSSANITÁRIA

Abstract

Potato is one of the most important sources of energy for the world's population. However, plants of this Solanaceae have great hostability to herbivores, such as defoliating caterpillars. The objective of the present study was to evaluate the productivity of potato plants submitted to foliar application of plant protection products indoxacarb, cyantraniliprole, chlorfenapyr, thiamethoxam+abamectin, cyantraniliprole+abamectin and spinetoram. As well as the microbiological Beauveria bassiana and the virus (ChinNPV+HearNPV). The study was carried out in a commercial potato crop belonging to the Paineiras Group, in Campo Alegre de Goiás, GO, Brazil. The design was in randomized blocks (DBC) with four replications and nine treatments. The potato yield components, represented by the number of tubers plant-1, mean mass of tubers (g) and productivity (ton ha-1) were quantified at 115 DAP. All potato production components were superior with all insecticides, as well as with virus application. But inferior when the fungus was used. We present efficient ways of controlling the caterpillars, environmentally friendly, resulting in lower values of defoliation and without risk of loss in the quality and productivity of the tubers.