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2008•Pesticide Research JournalRequires access

Bioefficacy of Carbosulfan 20EC against Rice Stem Borer, Scripophaga Incertulas (Pyralidae: Lepidoptera) in Assam

Aalh Baruah, Utpal Bhuyan, Badal Bhattacharyya

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Abstract

The efficacy of carbosulfan was evaluated during kharif, 2005–06 against rice stem borer, Scripophaga incertulas in comparison with chlorpyriphos. The results revealed that all the insecticidal treatments reduced the insect population significantly over untreated control and incurred significantly higher yield. Among the treatments, chlorpyriphos @ 250 g ai ha−1 recorded lowest over all increase of stem borer infestation after second application of insecticides in both the years (0.98 and 1.35%) which was significantly superior over untreated control (7.79 and 11.61%) and at par with carbosulfan @ 350 g ai ha−1 (1.43 and 2.79%). Carbosulfan @ 350 g ai ha−1 showed at par result with chlorpyriphos 20 EC @ 250 g ai ha−1 (check), hence it may be a viable alternative for rice pest management.

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What this paper is about

The efficacy of carbosulfan was evaluated during kharif, 2005–06 against rice stem borer, Scripophaga incertulas in comparison with chlorpyriphos. The results revealed that all the insecticidal treatments reduced the insect population significantly over untreated control and incurred significantly higher yield. Among the treatments, chlorpyriphos @ 250 g ai ha−1 recorded lowest over all increase of stem borer infestation after second application of insecticides in both the years (0.98 and 1.35%) which was significantly superior over untreated control (7.79 and 11.61%) and at par with carbosulfan @ 350 g ai ha−1 (1.43 and 2.79%). Carbosulfan @ 350 g ai ha−1 showed at par result with chlorpyriphos 20 EC @ 250 g ai ha−1 (check), hence it may be a viable alternative for rice pest management.

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Available abstract

The efficacy of carbosulfan was evaluated during kharif, 2005–06 against rice stem borer, Scripophaga incertulas in comparison with chlorpyriphos. The results revealed that all the insecticidal treatments reduced the insect population significantly over untreated control and incurred significantly higher yield. Among the treatments, chlorpyriphos @ 250 g ai ha−1 recorded lowest over all increase of stem borer infestation after second application of insecticides in both the years (0.98 and 1.35%) which was significantly superior over untreated control (7.79 and 11.61%) and at par with carbosulfan @ 350 g ai ha−1 (1.43 and 2.79%). Carbosulfan @ 350 g ai ha−1 showed at par result with chlorpyriphos 20 EC @ 250 g ai ha−1 (check), hence it may be a viable alternative for rice pest management.

Key concepts: Carbosulfan, Pyralidae, Kharif crop, Infestation, Biology, Toxicology, Forensic science, Lepidoptera genitalia

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Bioefficacy of Carbosulfan 20EC against Rice Stem Borer, Scripophaga Incertulas (Pyralidae: Lepidoptera) in Assam — Research Paper | ScholarLens