Persistence of New Insecticides and Their Efficacy Against Insect Pests of Okra

Persistence and efficacy of bifenthrin (25 and 50 g ai ha⁻¹), fipronil (50 and 100 g ai ha⁻¹) and indoxacarb (70 and 140 g ai ha⁻¹) has been studied in okra fruits. The initial deposits varied from 0.259-0.382 μg g⁻¹ at low and 0.461-0.688 μg g⁻¹ at high rate of application. The residues persisted u...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2009-02, Vol.82 (2), p.243-247
Main Authors: Gupta, Suman, Sharma, R. K, Gupta, R. K, Sinha, S. R, Singh, Rai, Gajbhiye, V. T
Format: Article
Language:English
Subjects:
Abelmoschus - parasitology
Animals
Aquatic Pollution
Contamination
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Fipronil
Fruits
Half-Life
Insecta
Insecticides
Insecticides - analysis
Oxazines - analysis
Pesticides
Pollution
Pyrazoles - analysis
Pyrethrins - analysis
Soil Science & Conservation
Studies
Waste Water Technology
Water Management
Water Pollution Control
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Summary:Persistence and efficacy of bifenthrin (25 and 50 g ai ha⁻¹), fipronil (50 and 100 g ai ha⁻¹) and indoxacarb (70 and 140 g ai ha⁻¹) has been studied in okra fruits. The initial deposits varied from 0.259-0.382 μg g⁻¹ at low and 0.461-0.688 μg g⁻¹ at high rate of application. The residues persisted upto 10 days with half-life of 1.32-1.58 days for bifenthrin, 0.65-1.12 days for fipronil and 0.58-1.02 days for indoxacarb. Based on ADI, the suggested waiting period was 1 day for bifenthrin and indoxacarb and 3 days for fipronil. All the insecticides were found effective against leafhopper and shoot and fruit borer.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-008-9581-8