Management of Stem Borer, Chillo partellus (Swinhoe) Infesting Sorghum [(Sorghum bicolor) (L.) Monch]
| dc.contributor.advisor | Swami, Hemant | |
| dc.contributor.author | RAM, BALDEV | |
| dc.date.accessioned | 2020-09-11T06:06:07Z | |
| dc.date.available | 2020-09-11T06:06:07Z | |
| dc.date.issued | 2019-06-17 | |
| dc.description | Management of stem borer,infesting Sorghum | en_US |
| dc.description.abstract | The population of stem borer (chillo partellus Swinhoe), shoot fly (Atherigona soccata Rondani), sorghum midge (Contarinia sorghicola Coquillet), shoot bug (Peregrinus maidis Ashmead), kharif grasshopper (Hieroglyphus nigrorepletus Bolivar), earhead bug (Colocoris angustatus Lethiery), and natural enemies i.e coccinelids and chryshopa spp were recorded in significant numbers on sorghum crop during the growing season. The incidence of shoot fly started in third week of July; those of stem borer, kharif grasshopper and shoot bug in the first, second and fourth week of August, respectively. The occurrence of natural enemies’ coccinelids and chryshopa spp were recorded in the third week of July and first week of August in respective in manner. Whereas, sorghum midge and earhead bug, both were recorded in the second week of September. The sorghum midge population showed a positive significant correlation with relative humidity and total rainfall. Among the granular insecticides evaluated against stem borer, Thiamethoxam 25% WG 25g a.i./ha proved to be the most effective in terms of mean leaf injury rating, per cent dead hearts and per cent stem tunneling. The minimum leaf injury rating 2.67 was recorded in treatment with thiamethoxam followed by the treatment of flubendiamide, emamectin benzoate, rynaxypyr, fipronil, Carbofuran and with leaf injury rating (LIR) of 3.17, 4.77, 5.13 and 5.87, respectively. The minimum per cent dead hearts formation of (10.00 %) was recorded in treatment thiamethoxam followed by flubendiamide, emamectin benzoate, rynaxypyr, fipronil and Carbofuran where of 20.00, 23.33, 26.67, 30.00 and 40.00 per cent plants showed dead heart formation respectively.Per cent of dead heart was recorded with control, which was significantly higher than rest of the treatments. The lowest tunnel 9.09 per cent was observed in thiamethoxam followed by flubendiamide, emamectin benzoate, rynaxypyr, fipronil, Carbofuran with per cent tunnel of 14.87, 17.47, 19.76, 28.68, and 29.80 per cent respectively. The highest net return was found in thiamethoxam (Rs. 37920) followed by flubendiamide (Rs. 31983), emamectin benzoate (Rs. 27663), rynaxypyr (Rs.22428) and fipronil (Rs.16410), respectively; while the lowest net return was observed in carbofuran (Rs.2883). The highest benefit cost ratio was with thiamethoxam (6.52) followed by flubendiamide (4.48), emamectin benzoate (2.52), rynaxypyr (1.72) and fipronil (1.29), while the lowest benefit cost ratio was with carbofuran (0.24). | en_US |
| dc.identifier.citation | Ram B. And Swami H. | en_US |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810151097 | |
| dc.keywords | Management, stem ,borer, infesting, Sorghum | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 73 | en_US |
| dc.publisher | MPUT, UDAIPUR | en_US |
| dc.research.problem | Management of stem borer,infesting Sorghum | en_US |
| dc.sub | Entomology | en_US |
| dc.theme | Management of stem borer,infesting Sorghum | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Management of Stem Borer, Chillo partellus (Swinhoe) Infesting Sorghum [(Sorghum bicolor) (L.) Monch] | en_US |
| dc.type | Thesis | en_US |