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Research Article Open access CC BY 4.0

Evaluation of Selective Fungicides and Biocontrol Agents for Suppression of Banded Leaf and Sheath Blight of Maize (Zea mays)

Bolla Venkateswarlu, Surja Kanta Beura

Current Journal of Applied Science and Technology · pp. 140–146 · Published 23 Jun 2020

10.9734/cjast/2020/v39i1530775

Abstract

The investigation was carried out for managing leaf and sheath blight of maize (Zea mays L.) by using different fungicides and bio control agents. The bio control agents and fungicides exhibited inhibitory action against the test pathogen under laboratory condition. Field experiment conducted during  kharif  season 2016 revealed that two sprays of  validamycin (0.2%), 30 and 40 days after sowing, gave maximum grain yield (30.0 q/ha) and 100-seed weight (208.0 g) with minimum percentage disease incidence (7%), (severity 1 on 1-5 scale), followed by difenoconazole @ 0.15% and hexaconazole (0.2%) for effective control of BSLB. Use of bio control agents Trichoderma harzianum and Pseudomonas fluorescens was found as best strategy for BSLB management.

Bio control agents foliar sprays fungicides Rhizoctonia solani f. sp. sasakii.

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