2021•Journal of Entomology and Zoology StudiesOpen access

Field efficacy of some insecticides against tomato fruit borer, Helicoverpa armigera (Hubner)

Reguri Divya Reddy, Ashwani Kumar, Kommoji Phani Sai

Abstract

The field experiment on “Field efficacy of some insecticides against tomato fruit borer, Helicoverpa armigera (Hubner)” was conducted during Rabi 2019-2020, at Central Research Farm, Department of Entomology, SHUATS, Naini, Prayagraj, U.P. The relative efficacy of some insecticides viz., Chlorantraniliprole 18.5SC (0.5ml/lit), Spinosad 45%SC (0.5ml/lit), Flubendiamide 20%WG (0.3gm/lit), Novaluron 10EC (1.5ml/lit), Nisco sixer plus (2ml/lit), Novaluron 10EC + Nisco sixer plus (0.75+1ml/lit) and Indoxacarb 14.5SC (1ml/lit) were evaluated against fruit borer (Helicoverpa armigera). The data on incremental percent reduction of different treatments revealed that the treatment Indoxacarb 14.5SC (65.66%) followed by Spinosad 45%SC (63.85%), Novaluron 10EC + Nisco sixer plus (0.75+1ml/lit) (62.21%) ˃ Chlorantraniliprole 18.5SC (60.64%) ˃ Nisco sixer plus (58.19%) ˃ Flubendiamide 20%WG (56.74%) ˃ Novaluron 10EC (55.94%) found to be the most economical viable treatment. The highest cost benefit ratio was obtained from Indoxacarb (1:10.8).

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Key concepts: Indoxacarb, Helicoverpa armigera, Novaluron, Spinosad, Toxicology, Biology, Emamectin, Larva