Determination of chlorantraniliprole for managing Helicoverpa armigera and Spodoptera litura in cotton ecosystem.

Autor: Anuradha P; Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, India., E MS; Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, India. Electronic address: ems3183@gmail.com., Priyanka M; Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, India., Emaiya R; Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, India., Karthik P; Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, India., Suganthi A; Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, India., Krishnamoorthy SV; Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, India.
Jazyk: angličtina
Zdroj: Environmental research [Environ Res] 2023 Dec 15; Vol. 239 (Pt 1), pp. 117301. Date of Electronic Publication: 2023 Oct 05.
DOI: 10.1016/j.envres.2023.117301
Abstrakt: Cotton bollworm incidence and damages are high in India. In addition, it causes considerable yield loss. A new insecticide formulation Chlorantraniliprole 600 g/L SC was used along with recommended insecticides for managing Spodoptera litura and Helicoverpa armigera in two consecutive experimental trials during the period October 2021 to September 2022. Two foliar applications of Chlorantraniliprole (40 and 30 g a. i/ha) at ten days interval period reduced significantly the larval populations of H. armigera, S. litura without any phytotoxic symptoms in cotton. Chlorantraniliprole application in open field condition was found to be harmless to natural enemy (coccinellids and spiders). Even though, a temporary lessening of natural enemy populations was noticed after spray, progressively the population was increased within a week time. Cotton yield was high in chlorantraniliprole @ 40 g a. i/ha treated plot (22.66, 22.12 q/ha) when compared to untreated control. Similar effect was also noticed in the dose at 30 g a. i/ha (22.35, 21.81 q/ha) and it was statistically on par in both experiments. Residue analysis results confirming that, cotton lint, cotton seed and soil samples collected from treated (30 and 60 g a. i/ha) and untreated samples during harvest were free from chlorantraniliprole residues (below detectable levels of 0.008 μg/g).
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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