POTENCIAL DE AGENTES BIOLÓGICOS E COMBINAÇÃO DE MÉTODOS NA INIBIÇÃO DE FUSARIUM Sp. IN VITRO

Abstract

Compatibility between chemical and biological fungicides is an important consideration in integrated disease management. Thus, the objective of this study was to verify the compatibility between chemical and biological fungicides on the in vitro growth of Fusarium. The experiment was conducted at the Instituto Federal Goiano, Cristalina Campus, in the city of Cristalina-GO, under laboratory conditions. All tests were performed in a completely randomized design (CRD), and different concentrations of Trichoderma asperellum and Bacillus velezensis were tested on the growth of Fusarium by the paired culture method. Colony diameters were measured every 24 hours for 7 days. All concentrations of Trichoderma and Bacillus were able to inhibit the growth of Fusarium, as were the chemical fungicides tested. In the compatibility test, Trichoderma showed mycelial growth with Bixafem + Proticonozal + Trifloxtrobin and sporulation with Pidiflumetofen, and there was no growth with the fungicide Metominostrobin + Tebuconazole. The results show that the combination of microorganisms and chemical fungicides is an important tool in the integrated management of plant diseases.