ALTERNATIVE PRODUCTS IN CONTROL OF Colletotrichum spp. ISOLATED MANGO AND BANANA

Abstract

Anthracnose caused by the fungus Colletotrichum spp. occurs in both mango and banana crops, in the field and in the post-harvest period. The search for the incorporation of a new ecological awareness has brought sustainability concepts to the agricultural environment. In this sense, the objective of this work was to evaluate the effect of alternative products in different concentrations on the development of Colletotrichum spp. in vitro. The isolates were obtained from fruits with symptoms of anthracnose. The antifungal activity of the treatments concentrations was evaluated by measuring the mycelial growth of the pathogen in centimeters. Five concentrations (1, 2, 4, 8, and 16%) of essential oil treatments of eucalyptus, copaiba, coconut, Indian clove and rosemary extract of citronella cinnamon and Indian clove, hydrolate of India clove and the major compound of India's clove oil Eugenol in BDA culture medium. The experiment was conducted in two experiments with a completely randomized design, in a factorial scheme 10x5 and 7x5 for Colletotrichum musae and Colletotrichum gloeosporioides, respectively in each product used / concentration, four replications were used. the treatments eugenol and rosemary oil presented the best results regarding inhibition of fungus growth in all concentrations used. We highlight the treatment with eucalyptus and clove oil that also totally inhibited the growth of C. musae from the 2% concentration. In the evaluation of the growth of C. gloeosporioides, among the seven evaluated treatments, only eugenol presented total growth inhibition potential independent of the concentration used, followed by copaiba oil that showed reduction of growth in all concentrations when compared to the other treatments.