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Bio-management of root-knot nematode, Meloidogyne incognita - wilt fungus, Fusarium oxysporum disease complex in  vegetable cowpea

Indian Agricultural Research Journals

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Title Bio-management of root-knot nematode, Meloidogyne incognita - wilt fungus, Fusarium oxysporum disease complex in  vegetable cowpea
 
Creator KRISHNA , K.R.
NISHA, M.S.
 
Subject Fluopyram, Fusarium oxysporum, Meloidogyne incognita, neem cake, Pseudomonas fluorescens, Purpureocillium lilacinum, vegetable cowpea
 
Description The disease complex caused by Fusarium oxysporum and Meloidogyne incognita is a major threat in vegetable cowpea cultivation. A field study was conducted at the Instructional Farm, Vellayani, to test the effect of different non-chemical methods viz., biofumigation by incorporating cauliflower crop residues, bioagents (Pseudomonas fluorescens, Trichoderma asperellum, Purpureocillium lilacinum) alone and in combination with organic amendment (neem cake, farmyard manure-FYM) in comparison with chemical (fluopyram) for managing the nematode-fungus disease complex in vegetable cowpea. Among the non-chemical methods, seed priming with P. fluorescens (10 g/kg seed) and soil application of neem cake (100 g/m2) showed maximum suppression of nematodes in soil (88.7%) and root (83.8%) over control. Combined application of P. fluorescens (10 g/kg seed) and neem cake (100 g/m2) was as effective as fluopyram 400 SC at 250 g a.i./ha and T. asperellum-enriched FYM at 20 g/m2 in reducing disease incidence and disease index. Regarding growth characters and yield also, the effect of seed treatment with rhizobacteria, P. fluorescens (10 g/kg seed), and neem cake application (100 g/m2) was statistically on par with fluopyram 400 SC at 250 g a.i./ha. The highest number of rhizobial nodules (87 per 5 g root) in plants was recorded in the combination treatment of P. fluorescens and neem cake and it was significantly superior to all other treatments.
 
Publisher Nematological Society of India
 
Date 2024-09-08
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/IJN/article/view/156042
 
Source Indian Journal of Nematology; Vol. 53 No. 1 (2023): Indian Journal of Nematology; 8-14
0974-4444
0303-6960
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/IJN/article/view/156042/55692
 
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https://creativecommons.org/licenses/by-nc-sa/4.0