Evaluation of New Generation Fungicidal Molecules for the Management of Sheath Blight ( Kuhn) of Rice

Abstract

A number of new and commercially available fungicides were evaluated against sheath blight of rice at Regional Research and Technology Transfer Station, Chiplima, Sambalpur, Odisha. Under , 100 per cent inhibition of mycelial growth of was observed with the fungicide (Trifloxystrobin + Tebuconazole) at 200 ppm concentration. Besides, it also had the lowest value of 3.19 μg ml . Under , the pooled data of two consecutive season indicated that, all the fungicides were effective in controlling the disease as compared to control but three spraying with (Trifloxystrobin + Tebuconazole) @ 0.4 g l at 15 days interval resulted in least sheath blight disease severity (5.0% PDI) as compared to untreated control (41.85% PDI). It was at par with the standard fungicide Propiconazole @ 1ml l (6.11 % PDI) with the highest yield of 51.9 q ha .