Vol. 10, Issue 2 (2022)
Management of rice yellow stem borer, Scirpophaga incertulas (Walker) using new and conventional granular insecticides
Author(s): Megha CM, L Vijaykumar, Anusha SB, Divya B and Ashwini SB
Abstract: The field experiment was carried out to assess the relative efficacy of new and conventional granular insecticides which were cost effective and ecologically feasible against rice yellow stem borer Scirpophaga incertulas at ‘A’ block, College of Agriculture, V. C. Farm Mandya during Kharif 2018. The experiment had eight treatments replicated thrice in randomized complete Block Design (RCBD). The result clearly indicated that, A significant and lower per cent dead heart (2.79%) was recorded in spinetoram 0.8 GR @ 9.5 Kg ha-1 and this was followed by fipronil 3G @ 25 Kg ha-1 and benfuracarb 3G @ 33 Kg ha-1 which recorded 3.77 and 4.86 per cent dead heart, respectively. A significant higher per cent dead heart was recorded in untreated control (12.45%) at 14 days after second application. The highest per cent reduction was observed in spinetoram 0.8GR @ 9.5 Kg ha-1 and this was followed by fipronil 0.3G @ 25 Kg ha-1, benfuracarb 3G @ 33 Kg ha-1, carbofuran 3G @ 33 Kg ha-1, cartap hydrochloride 4G @ 25 Kg ha-1, Chlorantraniliprole 0.4G @ 10 Kg ha-1 and flubendiamide 0.8 GR @ 10 Kg ha-1 which recorded 69.71, 60.96, 54.45, 53.41, 47.77 and 45.46 per cent, respectively. Regarding yield spinetoram 0.8GR @ 9.5 Kg ha-1recorded the highest yield (57.89 q ha-1) and all other insecticidal treatments showed significantly superior over untreated control (43.85 q ha-1).
Pages: 124-129 | 330 Views 124 Downloads
download (10759KB)
How to cite this article:
Megha CM, L Vijaykumar, Anusha SB, Divya B, Ashwini SB. Management of rice yellow stem borer, Scirpophaga incertulas (Walker) using new and conventional granular insecticides. Int J Chem Stud 2022;10(2):124-129.
