In-vitro Evaluation of Fungicides against Fusarium spp. Causing Wilt Disease in Pigeon Pea

Abstract

Fusarium spp. a soil and seed-borne pathogen, causes pigeon pea wilt, which causes significant losses in growers' pigeon pea yield. The chemical control method is a widely used and successful strategy for getting rid of disease-causing organisms. The goal of the current study was to evaluate the effectiveness of fungicides against Fusarium spp. which causes pigeon pea wilt, in vitro. Copperoxychloride 50%WP, Propineb 70%WP, Mancozeb 75%WP, Captan 75%WP, Carboxin 17.5% + Thiram 17.5% WP, Metalaxyl 4%w/w + Mancozeb 64%w/w, Thiophinate methyl 70%WP, and Carbendazim 50%WP were tested using the poisoned food technique on PDA medium at three different concentrations (100 ppm, 200 ppm, and 500 ppm). All of the fungicides considerably suppressed the fungus's mycelium growth. The maximum 98.96% and 98.88% mycelial growth inhibition was recorded in T7 (Thiophinate methyl 70%WP) and T5 (Carboxin 17.5% + Thiram 17.5% WP), and the minimum 56.92% mycelial growth inhibition was recorded in T3 (Mancozeb 75%WP). All other fungicides significantly inhibited the fungus's mycelial growth, as observed and mentioned in the paper's results.