Vol. 9, Issue 8 (2020)

Author(s):
Maheshwary NP, Gangadhara Naik B, Amoghavarsha Chittaragi, MK Naik, Satish KM and Nandish MS

Abstract:
Fungicides applied for the management of plant diseases have a toxic effect on the biological control agents. For effective disease management, the activity of biological control agents should not be hampered by the application of fungicides. To find the compatibility of bioagents with the fungicides, we have evaluated the different fungicides against Trichoderma asperellum in vitro. Among contact fungicides, Trichoderma was compatible with copper hydroxide, copper oxychloride and mancozeb, and least compatible with captan. Whereas among systemic fungicides, metalaxyl was compatible at all the concentrations whereas tebuconazole, propiconazole and carbendazim were incompatible. Among combination fungicides, metalaxyl-M + mancozeb was found to be highly compatible whereas other combination fungicides tested were incompatible with Trichoderma.