植物病理学および微生物学ジャーナル

概要

In Vitro Evaluation of Botanicals, Bio-Agents and Fungicides against Leaf Blight of Etlingera linguiformis Caused by Curvularia lunata Var. Aeria

Chijamo Kithan and Daiho L

The present study was attempted with the objective of screening the potential antifungal activities of eight fungicides, nine plant extracts and five bio-agents in vitro against leaf blight of E. linguiformis caused by C. lunata var. aeria. Mancozeb at 0.3% (97.37% inhibition) was found to be significantly superior among the non-systemic fungicides evaluated at three concentrations (0.1, 0.2 and 0.3%). Among the systemic fungicides, metalaxyl showed 98.48% inhibition of mycelial growth at 0.3% concentration followed by carbendazim (95.25% inhibition at 0.3%). Among the plant extracts, Millettia pachycarpa root extracts (55.78) at 10 per cent was superior followed by Acorus calamus with 53.40% inhibition at 10 per cent. Among the bio-agents tested, Trichoderma harzianum showed maximum inhibition of 68.85 per cent inhibition. The study indicated that suitable integration of more efficient ecofriendly treatments like bio-agents and botanicals with lesser use of fungicides may provide effective management of the disease.