FERTILIZANTE ORGANOMINERAL E ARGILA SILICATADA COMO INDUTORES DE RESISTÊNCIA Á VARÍOLA DO MAMOEIRO

Abstract

Black spot of papaya disease is one of the most serious problems of the papaya culture and its control is based on the excessive application of chemical products. The goal of this study was to evaluate the effect of the application of biofertilizer and silicate clay in the resistance induction to the black spot of papaya disease, being evaluated the incidence and severity. The treatments received road leaf applications of biofertilizer (T2), silicate clay (T3), biofertilizer plus silicate clay and water on the witness (T1). The evaluations were made 5 days after to 6th, 9th and 12th road leaf application of the products. The treatments 2, 3 and 4 provided significant reduction of the disease's incidence and severity. However, the incidence and severity reduction were larger with biofertilizer plus silicate clay associated. The application of these products is a effective measure and economically viable method for the black spot management in papaya cultivations.