Eficiência de produtos naturais no controle de Colletotrichum gloeosporioides em pimenta na pós colheita

Abstract

The aim of this study was to evaluate the effect of different natural products on the expression of resistance to Colletotrichum gloeosporioides, the etiologic agent of anthracnose, in postharvest pepper fruits. The products acadian®, biopirol®, neemseto®, chitosan and rocksil® were applied at 48 and 72 hours before the pathogen inoculation, in independent treatments, using two doses for each inducer. There was a decrease in the pathogen development for all treatments, statistically differing from the control. At the first application time (48h), treatments with biopirol® followed by acadian® at larger doses led to smaller anthracnose lesions in relation to the remaining treatments at that period. At the second application time (72h), acadian® was the only product to show a significant effect, compared to the other treatments. The obtained results demonstrate the potential of natural inducers to control anthracnose in postharvest pepper fruits.