STUDIES ON TOSPOVIRUS TRANSMITTING THRIPS ON TOMATO AND THEIR MANAGEMENT
| dc.contributor.advisor | NARABENCHI, GANGADHAR | |
| dc.contributor.author | C. R., SHRUTHI | |
| dc.contributor.other | H. B., PATIL | |
| dc.contributor.other | R., ASOKAN | |
| dc.contributor.other | A. M., NADAF | |
| dc.contributor.other | BHAT, AMRUTA S. | |
| dc.date.accessioned | 2023-03-01T10:10:45Z | |
| dc.date.available | 2023-03-01T10:10:45Z | |
| dc.date.issued | 2020-12 | |
| dc.description.abstract | Study was carried out during 2015-2018 at College of Horticulture, Bagalkot and Indian Institute of Horticultural Sciences, Bengaluru, Karnataka, India. Survey was carried out during 2016 to study the thrips species composition and extent of thrips infestation and Groundnut bud necrosis viral (GBNV) disease incidence on tomato in major tomato growing districts of Karnataka. The results revealed that, the major thrips species consisted of Thrips palmi Karny, Scirtothrips dorsalis Hood, Frankliniella schultzei Trybom, Thrips tabaci Lindeman and Thrips Spp. Among the four different species occurring on tomato, T. palmi was more abundant on tomato fields of all eight localities followed by S. dorsalis, F. schultzei and T. tabaci. Among the different localities surveyed, the tomato fields at Kolar and Belagavi recorded lowest thrips infestation and GBNV disease incidence, respectively (0.72 thrips/plant and 22.50 % disease incidence, respectively) as compared to other fields surveyed. Whereas, the highest thrips and GBNV disease incidence was recorded from the Bagalkote district (3.70 thrips/plant and 47.88 % disease incidence, respectively). The vector status of S. dorsalis was confirmed in the present study as it successfully transmitted GBNV on cowpea plants. The larvae were capable of acquiring the virus within 24 h AAP. Further increase in AAP from 24 to 48 h had no considerable effect on transmission efficiency. It was clear from the experiment that, the 24 h IAP was not enough to transmit sufficient virus to induce GBNV symptoms. The maximum transmission efficiency of 35 per cent was observed when thrips were allowed for 48 h IAP as compared to 72 h IAP. Among the different modules tested, Integrated pest management module consisting of sowing of 2 rows of maize at 15 days before transplantation, seedling dip with imidacloprid 200SL @ 0.50 ml/l for 10 minutes at the time of transplantation, installation of blue sticky traps @ 8 traps/Ac at 2 WAT followed by foliar spray of azadirachtin 10,000 ppm @ 1.00 ml/l at 4 WAT, thiamethoxam 25 WG @ 0.20 g/l at 6 WAT, diafenthiuron 50 WP @ 1.25 g/l at 8 WAT and Lecanicillium lecanii (2×108 cfu/g) @ 2 g/l at 10 WAT emerged as superior in both Summer and Kharif seasons by registering higher efficacy, yield and B:C ratios. | en_US |
| dc.identifier.other | UHS14PGD87 | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810194635 | |
| dc.keywords | Horticulture, Entomology, Tospovirus, Thrips, Tomato,Thrips Palmi Karny, Scirtothrips Dorsalis Hood, Frankliniella Schultzei Trybom, Thrips Tabaci Lindeman,Thrips Spp., T. Palmi, S. Dorsalis, F. Schultzei, T. Tabaci., Larvae, UHS14PGD87. | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 234p. (Due to pdf. conversion there is a difference in pages of soft copy and hard copy). | en_US |
| dc.publisher | University of Horticultural Sciences Bagalkot. (College of Horticulture, Bagalkot). | en_US |
| dc.sub | Entomology | en_US |
| dc.theme | STUDIES ON TOSPOVIRUS TRANSMITTING THRIPS ON TOMATO AND THEIR MANAGEMENT | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | STUDIES ON TOSPOVIRUS TRANSMITTING THRIPS ON TOMATO AND THEIR MANAGEMENT | en_US |
| dc.type | Thesis | en_US |