Bioecology and management of painted bug bagrada hilaris (Kirkaldy) on Indian mustard
| dc.contributor.advisor | Balbir Singh | |
| dc.contributor.author | Sokhal, Parkash | |
| dc.date.accessioned | 2024-01-23T10:48:48Z | |
| dc.date.available | 2024-01-23T10:48:48Z | |
| dc.date.issued | 2023-05 | |
| dc.description.abstract | The present studies entitled “Bioecology and management of painted bug Bagrada hilaris kirkaldy on Indian mustard” were carried out during rabi season, 2021-22 at CCSHAU Regional Research Station, Bawal. The biology of Bagrada hilaris was studied on Indian mustard in the field and laboratory of the Department of Entomology. Observations on biology of the pest on mustard indicated that the pest had egg, five nymphal instars and adult stages. The mean duration of nymph period was 3.93, 4.90, 5.66, 5.73 and 6.03 days, respectively. The adult female had a pre-oviposition, oviposition and post oviposition period of 5.90, 10.10 and 4.20 days, respectively. Male and female completed their life span in 49.50 and 52.20 days, respectively. An adult female laid on an average 54.80 eggs. The mean incubation period of eggs was varied from 5.50 days. The population of painted bug was initiated at early stage of crops i.e 40th SMW and reached maximum in 42th SMW (6.8 adult/nymph/per plant), while the maximum population of aphid was noticed during 10th SMW (13.6 aphids per plant). The incidence of gujhia weevil in mustard was started from early stage of crop in 40th SMW. Maximum damage of gujhia weevil was observed in 41th SMW with 4.2 dead plant per meter row. In late sown mustard the population of aphid was higher than early sown mustard while the painted bug and gujhia weevil incidence were lower in late sown crop. The peak population of painted bug was noticed during 11th SMW with an average population of (8.4 painted bug nymph/adult) while the maximum population of aphid was noticed during 10th SMW (25.8 aphids per plant). Maximum damage of gujhia weevil was observed in 44th SMW with 4.8 dead plants per meter row. Based on the data, seed treatment of thiamethoxam 25 % WG @ 5 g/kg seed was found most effective as compare with imidacloprid 17.8 SL @ 5ml/kg in managing painted bug population. In foliar spray the treatment T6 which include seed treatment with thiamethoxam and foliar application of imidacloprid proved the most effective among all other insecticides. The highest yield was 17.07 q/ha and the lowest population of painted bug was in this treatment which were (1.40, 1.13, 1.40, 1.47) after one day, 3rd, day, 7th day and 10th day of spray, respectively. | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810206491 | |
| dc.language.iso | English | |
| dc.pages | 38+ iv | |
| dc.publisher | CCSHAU, Hisar | |
| dc.sub | Entomology | |
| dc.theme | Bioecology and management of painted bug bagrada hilaris (Kirkaldy) on Indian mustard | |
| dc.these.type | M.Sc | |
| dc.title | Bioecology and management of painted bug bagrada hilaris (Kirkaldy) on Indian mustard | |
| dc.type | Thesis |