Management of Soil Borne Diseases in Groundnut through IDM Modules

Abstract

The present work was carried out to find out effective IDM module for the management soil borne diseases in groundnut (Arachis hypogea L.). Groundnut, is one of the most important oil seed crop of India is affected by several soil-borne diseases viz., collar rot, stem rot and pod rot etc. Seed and soil borne diseases causes severe seedling mortality resulting in the patchy crop stand mostly in the sandy loam soils and reduces yield from 25 to 50%. The study was conducted for development of IDM module for management of soil-borne diseases using fungicides and biocontrol agents. Among the nine modules tested, module with deep summer ploughing with mould board plough + Soil application of Trichoderma @ 4kg/ha enriched in FYM + Seed treatment with Tebuconazole 2DS 1.5 g/kg of seeds followed by seed treatment with PGPR @ 625 g for per kg seeds + Soil application of Trichoderma @ 4 kg/ ha enriched in 250 kg FYM/ha at 35 and 70 DAS recorded significantly highest seed germination (87%), significantly lowest Collar rot incidence (5.31%), Stem rot incidence at harvest (11.0%), Pod rot incidence (2.60%) and at the same time this treatment also showed significantly highest pod (1521 kg/ha) and haulm yield (3235 kg/ha), respectively as compared to control and rest of the treatments. Soil-borne diseases can be managed by integrating cultural practices like deep summer ploughing by MB plough before sowing, seed treatment with Tebuconazole 2 DS 1.5 g/kg seeds followed by soil application of Trichoderma @ 4 kg/ha enriched in 250 kg FYM at 35 and 70 DAS and would be effective against reducing soil borne pathogens of groundnut such as collar rot, stem rot and pod rot.