Given the substantial role of leafhoppers (E. flavescens) in causing large-scale grain yield losses, the present field experiments on bio-efficacy of newer insecticides against leafhopper of castor (Ricinus communis Linnaeus) were carried out on Agronomy Instructional Farm, C. P. College of Agriculture, S. D. Agricultural University, Sardarkrushinagar during kharif, 2021-22 and 2022-23, aiming to provide valuable insights into their effectiveness in managing leafhoppers and addressing the challenges associated with pest-induced losses in castor cultivation. Among the various insecticides tested, flonicamid 50 WG was found the most effective insecticide against leafhopper. Highest (1:21.56) protection cost: benefit ratio obtained when castor plots was treated with flonicamid 50 WG.

Castor, newer insecticides, bio-efficacy, leafhopper

Based on the findings of the current investigation, the newer insecticides, specifically flonicamid 50 WG and spinosad 45 SC, demonstrated superior efficacy compared to the standard insecticides currently recommended for managing leafhoppers in the castor ecosystem. The highest protection cost: benefit ratio (1:21.56) was achieved when castor plots were treated with flonicamid 50 WG.

D.M. Chaudhary, P.S. Patel, D.H. Padhiyar, M.K. Chandaragi, P.K. Thakar and C.S. Barad (2023). Bio-efficacy of Newer Insecticides Against Leafhopper (Empoasca flavescens) of Castor (Ricinus communis Linneaus). Biological Forum – An International Journal, 15(12): 75-80.