Comparative Management Studies on Banded Leaf and Sheath Blight of Maize Caused by Rhizoctonia Solani F.SP. Sasakii

Radhajeyalakshmi Raju^1, , Sethuraman Kandhasamy², Lakshmi Narayanan Subramanian¹ and Arivudai Nambi Marisamy¹

¹Maize Research Station, Tamil Nadu Agricultural University, Vagarai-624613

²Directorate of student’s Welfare, Tamil Nadu Agricultural University, Coimbatore-641003

Cite this paper:
Radhajeyalakshmi Raju, Sethuraman Kandhasamy, Lakshmi Narayanan Subramanian and Arivudai Nambi Marisamy. Comparative Management Studies on Banded Leaf and Sheath Blight of Maize Caused by Rhizoctonia Solani F.SP. Sasakii. Applied Ecology and Environmental Sciences. 2021; 9(1):53-57. doi: 10.12691/aees-9-1-7

Abstract

Bioassay of biocontrol agents and fungicides against Maize Banded Leaf and Sheath Blight caused by Rhizoctonia solani showed inhibition. Among the biocontrol agents, Bacillus subtilis and among the fungicides Hexaconazole was found to be effective under field conditions with the percent disease incidence of 2.25% and 3.00% respectively over control 10.45%. Seed treatment (4g/kg) and soil application (2.5kg/ha) of Bacillus subtilis recorded 78.46% reduction in sheath blight incidence and highest grain yield of 6.7t/ha. Foliar spraying of Hexaconazole (0.2%) showed 71.30% reduction and grain yield of 6.4t/ha. Hence, seed treatment and soil application of Bacillus subtilis is considered to be effective against BLSB under field condition. Seed treatment and soil application of Bacillus subtilis, Foliar spraying of Hexaconazole may be recommended for Banded Leaf and Sheath Blight of Maize.

Keywords:
Rhizoctonia solani banded leaf and sheath blight biocontrol agents fungicides Bacillus subtilis Trichoderma asperellam

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