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Kumbhar, C. T.
- Efficacy of Triazole Fungicides in Controlling Fruit Rot of Chilli
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Authors
C. T. Kumbhar
1,
S. M. More
2
Affiliations
1 Zonal Agricultural Research Station (Sub-montane Zone), Kolhapur M.S.
2 Zonal Agricultural Research Station (Sub-montane Zone), Kolhapur M.S., IN
1 Zonal Agricultural Research Station (Sub-montane Zone), Kolhapur M.S.
2 Zonal Agricultural Research Station (Sub-montane Zone), Kolhapur M.S., IN
Source
International Journal of Plant Protection, Vol 6, No 2 (2013), Pagination: 257-261Abstract
Field experiments were conducted for three consecutive Kharif seasons of 2009, 2010 and 2011 at the experimental farm of Zonal Agricultural Research Station (Sub-montane Zone), Shenda Park, Kolhapur, to study the efficacy of five fungicides of triazole group viz., tebuconazole 25.9% EC, difenconazole 25% EC, hexaconazole 5% SC, tricyclazole 75% WP and propiconazole 25% EC against fruit rot disease of chilli caused by Colletotrichum capsici. Performance of these triazole fungicides was compared with mancozeb 75% WP, propineb 70% WP, copper oxychloride 50% WP and carbendazim 50 WP. Fungicide, tebuconazole appeared the most effective amongst the fungicides tested, with reduction in fruit rot incidence and intensity to the tune of 69.96% and 73.56%, respectively over unsprayed control, followed immediately with similar efficacy by other two triazoles viz., difenconazole and hexaconazole. Highest dry fruit yield of 25.91 q ha-1 was recorded in the plots sprayed with tebuconazole and was at par with that obtained in difenconazole, hexaconazole, tricyclazole, propineb and mancozeb sprayed plots. Although, the maximum increase in yield was obtained by spraying tebuconazole, the maximum benefit:cost ratio was obtained with hexaconazole. It means that tebuconazole though increases the yield, the cost of fungicide could not be yet met out with the increased yield. Conclusively, the present investigation reveals that four sprayings of fungicide, hexaconazole 5% SC at the concentration of 0.1%, first in the early fruiting stage and subsequent three sprays at 14 days' interval, are most effective and economical for controlling fruit rot disease of chilli under Maharashtra conditions.Keywords
capsicum Annuum, colletotrichum Capsici, Fruit Rot of Chilli, Triazole Fungicides- Environmentally Benign Management of Bacterial Wilt of Brinjal Incited by Ralstonia solanacearum (Smith)
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Authors
Affiliations
1 Zonal Agricultural Research Station, Sub-Montane Zone, Shenda Park, Kolhapur (M.S.), IN
1 Zonal Agricultural Research Station, Sub-Montane Zone, Shenda Park, Kolhapur (M.S.), IN
Source
International Journal of Plant Protection, Vol 11, No 1 (2018), Pagination: 30-34Abstract
A field experiment was conducted to study the effect of Pseudomonas fluorescens on wilt disease of brinjal incited by Ralstonia solanacearum, during three consecutive Kharif seasons of 2010, 2011 and 2012 at the experimental farm of Zonal Agricultural Research Station, Sub-montane Zone, Kolhapur (Maharashtra) India. Pooled data of the three years revealed that the wilting was reduced remarkably in the plots, where the plants were drenched with copper oxychloride 40 g + streptocycline 2 g (per 10 L water). This treatment gave outstanding disease control and was the best amongst all the treatments tried, in reducing wilt incidence by 62.77 per cent and yield increase by 71.93 per cent compared to untreated control. However, maximum benefit-cost (B: C) ratio of 3.11 was recorded in the treatment wherein P. fluorescens was inoculated to seed + seedling ischolar_mains + soil. Consequently, on the basis of relative efficacy of P. fluorescens in terms of degree of disease control, additional yield, net profit per hectare and benefit: cost ratio, seed treatment with talc based culture of P. fluorescens @ 10 g kg-1 seed before sowing and seedling ischolar_main dip (2.5 kg of talc based formulation of P. fluorescens in 40 L water) as well as soil application (2.5 kg of talc based formulation of P. fluorescens mixed in 50 kg of FYM acre-1 soil), at the time of transplanting may be recommended to farmers for management of bacterial wilt of brinjal and thereby gaining higher fruit yield.Keywords
Bacterial Wilt, Ralstonia solanacearum, Pseudomonas fluorescens.References
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