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Patil, Suresh
- Evaluation of non-pathogenic Fusarium for antagonistic activity against Fusarium wilt of tomato
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Authors
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1 National Bureau of Agriculturally Important Insects, Post Bag No, 2491, H.a. Farm Post, Bellary Road, Hebbal, Bangalore 560024, Karnataka, IN
1 National Bureau of Agriculturally Important Insects, Post Bag No, 2491, H.a. Farm Post, Bellary Road, Hebbal, Bangalore 560024, Karnataka, IN
Source
Journal of Biological Control, Vol 25, No 2 (2011), Pagination: 118-123Abstract
Fusarium spp. isolated from rhizosphere soils of tomato from Karnataka, Tamil Nadu and Gujarat states of India were tested for their pathogenicity. Among these isolates, six were found non-pathogenic to tomato, red gram, bengal gram, groundnut, red pepper, water melon, castor and banana. These non-pathogenic isolates protected tomato plants when co-inoculated with pathogen isolate under pot culture conditions. Treatment with non-pathogenic Fusarium isolates improved the plant growth parameters (length and weight of ischolar_main and shoot). These non-pathogenic Fusarium isolates can be exploited for the biocontrol of wilt disease.Keywords
Biocontrol, Non-pathogenic Isolates, Fusarium Spp., Tomato, Wilt.Full Text
- In Vitro Efficacy Fungicides against Causal Agents of Twister Disease of Onion
Abstract Views :489 |
PDF Views:1
Authors
Affiliations
1 Department of Plant Pathology, College of Agriculture, University of Agricultural Science, Dharwad (Karnataka), IN
1 Department of Plant Pathology, College of Agriculture, University of Agricultural Science, Dharwad (Karnataka), IN
Source
International Journal of Plant Protection, Vol 9, No 2 (2016), Pagination: 520-526Abstract
Twister disease of onion has become epidemic in coastal tract and other onion growing districts of Karnataka which caused heavy loss and its causal agents are C. gloeosporioides and F. oxysporum. Efforts were made to screen fungicides to know their efficacy of different fungicides at different concentrations under In vitro by poisoned food technique. Among the four non-systemic fungicides evaluated against C. gloeosporioides maximum inhibition was observed in chlorothalonil (42.60%). Among the seven systemic fungicides against F. oxysporum evaluated, hundred per cent inhibition of mycelial growth of C. gloeosporioides at all tested concentrations was observed in propiconazole, hexaconazole, tebuconazole and tricyclazole. Among the seven combi product fungicides evaluated carbendazim 12 per cent + iprodione 63 per cent (Quintal) inhibited maximum mycelial growth (95.43%). In vitro evaluation of fungicides revealed that among the four non-systemic fungicides evaluated, maximum inhibition of mycelial growth of F.oxysporum was observed in copper oxychloride (64.84%). Among six systemic fungicides evaluated, maximum inhibition of mycelial growth of F. oxysporum was observed in propiconazole (93.52%). Among the six combiproduct fungicides evaluated, hundred per cent inhibition of mycelial growth was observed in Saaf, Sprint and Vitavax power at all tested concentrations.Keywords
Twister Disease of Onion, In Vitro Evaluation, Fungicides, C. Gloeosporioides and F. oxysporum.
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