Field efficacy of new pre-mix formulation of Flonicamid 15% + Fipronil 15% WG against major insect pests of Rice

Abstract

Field experiments were conducted to test the field efficacy of new insecticide molecule, a pre-mix formulation, Flonicamid 15% + Fipronil 15% WG against major insect pests of rice during kharif and rabi seasons of 2014-15 at experimental farm, ICAR-National Institute of Biotic Stress Management, Raipur. Flonicamid 15% + Fipronil 15% WG @ 150 g a.i ha-1 was the best treatment with lowest stem borer damage (% dead hearts and % white ears), leaf folder damage (% damaged leaves) and lowest incidence of brown planthopper and green leafhopper incidence (number hill-1) followed by Flonicamid 15% + Fipronil 15% WG @ 120 g a.i ha-1 during both kharif and rabi seasons of 2014-15. Maximum grain yield of 5.2 and 5.4 t ha-1(52.04 and 54.12 qha-1) obtained in Flonicamid 15% + Fipronil 15% WG @ 150 g a.i ha-1 with highest benefit cost ratio of 2.42 and 2.52, respectively during kharif and rabi 2014-15. All the doses of Flonicamid 15% + Fipronil 15% WG were found safer to mirid bugs and spiders in rice ecosystem during the experiments. Flonicamid 15% + Fipronil 15% WG was found superior in controlling both lepidopteran borers and hemipteran sucking pests in rice.