Vol. 11, Issue 8 (2022)

Author(s):
V Leela Sindhu, K Gopal, K Arunodhayam, Ch. Ruth and B Srinivasulu

Abstract:
Foot rot is one of the ruinous disease in papaya which leads to the complete failure of crop. Phytophthora palmivora is one of the causal agent of foot rot disease. For its effective management, five chemicals viz., Dimethomorph 9% + Mancozeb 60% WP, Fosetyl- AL 80 WP, Metalaxyl 4% + Mancozeb 64% WP, Copper oxy chloride 50% WP and Fenamidone 10% + Mancozeb 50%WG were evaluated at different concentrations against the pathogen in vitro. Among all the chemicals tested, Metalaxyl 4% + Mancozeb 64% WP and Fenamidone 10% + Mancozeb 50%WG was proven as best in controlling the pathogen with 100 per cent inhibition at all the tested concentrations followed by Copper oxychloride 50% WP with 98.88% inhibition at 0.3% concentration and 98.70% inhibition at 0.2% concentration respectively. The lowest per cent inhibition (2.22%) was seen in Dimethomorph 9% + Mancozeb 60% WP at 0.1% concentration.