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2020•Journal of Entomology and Zoology StudiesOpen access

Field efficacy of certain biopesticides against okra shoot and fruit borer, Earias vittella (Fabricius) on okra, Abelmoschus esculentus (Linn.) Moench

Gundavarapu Kaveri, Ashwani Kumar

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Abstract

The present investigation entitled “Field efficacy of certain insecticides against shoot borer Earias vittella (Fabricius) on Kharif season okra in Prayagraj (U.P.)” cultivar i.e. VRO-6 was conducted during July to November 2019 at Central Research Farm, SHUATS, Naini, Prayagraj. Two applications of seven insecticides viz; Spinosad 45% SC, Metarrhizium anisopliae, Verticillium lecani, Beauveria bassiana, Neem oil 3%, karanjin 2% EC, Aloevera extract 1%, were evaluated against shoot and fruit borer, Earias vittella. Minimum percent of shoot infestation, percent fruit infestation and B:C ratio were observed in Spinosad 45% SC with (5.22%, 5.86% and 1:11.1) respectively which was followed by Beauveria bassiana (11.63%, 12.33% and1:8.43)

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What this paper is about

The present investigation entitled “Field efficacy of certain insecticides against shoot borer Earias vittella (Fabricius) on Kharif season okra in Prayagraj (U.P.)” cultivar i.e. VRO-6 was conducted during July to November 2019 at Central Research Farm, SHUATS, Naini, Prayagraj. Two applications of seven insecticides viz; Spinosad 45% SC, Metarrhizium anisopliae, Verticillium lecani, Beauveria bassiana, Neem oil 3%, karanjin 2% EC, Aloevera extract 1%, were evaluated against shoot and fruit borer, Earias vittella. Minimum percent of shoot infestation, percent fruit infestation and B:C ratio were observed in Spinosad 45% SC with (5.22%, 5.86% and 1:11.1) respectively which was followed by Beauveria bassiana (11.63%, 12.33% and1:8.43)

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Available abstract

The present investigation entitled “Field efficacy of certain insecticides against shoot borer Earias vittella (Fabricius) on Kharif season okra in Prayagraj (U.P.)” cultivar i.e. VRO-6 was conducted during July to November 2019 at Central Research Farm, SHUATS, Naini, Prayagraj. Two applications of seven insecticides viz; Spinosad 45% SC, Metarrhizium anisopliae, Verticillium lecani, Beauveria bassiana, Neem oil 3%, karanjin 2% EC, Aloevera extract 1%, were evaluated against shoot and fruit borer, Earias vittella. Minimum percent of shoot infestation, percent fruit infestation and B:C ratio were observed in Spinosad 45% SC with (5.22%, 5.86% and 1:11.1) respectively which was followed by Beauveria bassiana (11.63%, 12.33% and1:8.43)

Key concepts: Abelmoschus, Spinosad, Beauveria bassiana, Biology, Infestation, Leucinodes orbonalis, Shoot, Kharif crop

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Field efficacy of certain biopesticides against okra shoot and fruit borer, Earias vittella (Fabricius) on okra, Abelmoschus esculentus (Linn.) Moench — Research Paper | ScholarLens