INTEGRATED MANAGEMENT OF ROOT GRUBS IN ONION ECOSYSTEM
| dc.contributor.advisor | J. B., GOPALI | |
| dc.contributor.author | K. T., MADHUSUDHAN | |
| dc.contributor.other | KOTIKAL, Y. K. | |
| dc.contributor.other | GASTI, VILAS D. | |
| dc.contributor.other | M. P., BASAVARAJAPPA | |
| dc.date.accessioned | 2020-09-22T10:57:57Z | |
| dc.date.available | 2020-09-22T10:57:57Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | Studies on “Integrated management of root grubs in onion ecosystem” were conducted in endemic areas of Bagalkot district during the year 2017-18. During the survey on root grubs, it was confirmed that Holotrichia serrata (F.) was a major species prevailing to an extent of 91.0 per cent followed by Anomala bengalensis (Blanchard) (7.0%) and Anomala dorsalis (Fabricius) (2.0%) are the species that were found damaging in onion crop in all the surveyed areas of Bagalkot district. Among the new molecules tested against root grubs in onion ecosystem, chlorantraniliprole 18.5 SC at 0.4 ml per litre registered the significantly minimum per cent mortality of onion plants (1.30%), significantly minimum number of root grub population per square metre area (0.53) and significantly higher yield levels (43.83 t/ha) with maximum net returns (Rs. 3,63,571/ha) and highest B:C ratio (5.86) compared to standard check, chlorpyriphos 20 EC at 10 ml per litre. Next best new molecule was flubendiamide 480 SC at 0.4 ml per litre. Further, study on different modules against root grubs in onion ecosystem revealed that M2-adaptable module (comprising of application of Metarrhizium anisopliae at 10 kg per hectare applied through FYM (Farm Yard Manure) before sowing followed by chlorantraniliprole 18.5 SC at 0.4 ml per litre at the time of sowing) proved to be quite effective against root grub population in onion ecosystem by registering the significantly lowest per cent mortality of onion plants (0.91%), significantly minimum number of root grubs per square metre area (0.64) and significantly maximum yield (40.25 t/ha) with higher net returns (Rs. 3,26,738/ha) and B:C ratio (5.31). Although, M3-Chemi-intensive module bestowed with significantly higher yield (41.06 t/ha) but resulted in lower B:C ratio (5.13). Therefore, It can be concluded that M2-Adaptable module was found to be most effective, economical, eco-friendly and easily adoptable by the farming community. | en_US |
| dc.identifier.issn | UHS16PGM743 | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810151782 | |
| dc.keywords | ONION, T460 | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 87 | en_US |
| dc.publisher | University of Horticultural Sciences, Bagalkot | en_US |
| dc.research.problem | Thesis | en_US |
| dc.sub | Entomology | en_US |
| dc.theme | INTEGRATED MANAGEMENT OF ROOT GRUBS IN ONION ECOSYSTEM | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | INTEGRATED MANAGEMENT OF ROOT GRUBS IN ONION ECOSYSTEM | en_US |
| dc.type | Thesis | en_US |