title: Persistence of propargite on okra under subtropical conditions at Ludhiana, Punjab, India.
abstract: Residues of propargite were estimated in okra fruits by high performance liquid chromatography following single application of Omite 57 EC @570 and 1,140 g a.i./ha. Residues of propargite were confirmed by high performance thin layer chromatography. The average initial deposits of propargite were observed to be 1.36 and 3.32 mg/kg, respectively, which were below its maximum residue limit of 2 mg/kg. The residue levels of propargite dissipated below its limit of quantification of 0.02 mg/kg after 7 days at single dose and after 10 days at double dose. The half-life values (T ₁(/)₂) of propargite were worked out to be 0.79 and 0.73 days, respectively, at recommended and double the recommended dosages.
authors.affiliation: Department of Entomology, Punjab Agricultural University, Ludhiana, India.
authors.forename: B K
authors.initials: BK
authors.lastname: Kang
authors.forename: Gagan
authors.initials: G
authors.lastname: Jyot
authors.forename: R K
authors.initials: RK
authors.lastname: Sharma
authors.forename: R S
authors.initials: RS
authors.lastname: Battu
authors.forename: B
authors.initials: B
authors.lastname: Singh
mesh_terms: D028483:Abelmoschus / Q000737:chemistry*; D002980:Climate; D003510:Cyclohexanes / Q000032:analysis* / Q000737:chemistry; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D007194:India; D007306:Insecticides / Q000032:analysis* / Q000737:chemistry; D010573:Pesticide Residues / Q000032:analysis
chemical_list: D003510:Cyclohexanes; D004785:Environmental Pollutants; D007306:Insecticides; D010573:Pesticide Residues; C002771:Omite