title: Persistence of azoxystrobin in/on grapes and soil in different grapes growing areas of India.
abstract: Persistence of azoxystrobin was studied in/on grapes when applied @ 150 g ai ha⁻¹ (recommended dose) and 300 g ai ha⁻¹ (double the recommended dose) in three grapes growing states of India, namely Karnataka, Maharashtra and Tamil Nadu, in the year 2006-2007. A total of five sprays were given at an interval of about 15 days. Grapes and soil samples were collected after 5th spray, extracted and analysed by gas chromatography using electron capture detector. Half life of azoxystrobin on grapes varied from 5.4 to 11.2 days. Residues of azoxystrobin were much below the prescribed MRL (0.5 mg kg⁻¹) after 21 days. The dissipation of azoxystrobin in soil followed first order rate kinetics with an average half life of 8.1 days at the recommended dose of application.
authors.affiliation: Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi 110012, India.
authors.forename: Vijay Tularam
authors.initials: VT
authors.lastname: Gajbhiye
authors.forename: Suman
authors.initials: S
authors.lastname: Gupta
authors.forename: Irani
authors.initials: I
authors.lastname: Mukherjee
authors.forename: Shashi Bala
authors.initials: SB
authors.lastname: Singh
authors.forename: Neera
authors.initials: N
authors.lastname: Singh
authors.forename: Prem
authors.initials: P
authors.lastname: Dureja
authors.forename: Yogesh
authors.initials: Y
authors.lastname: Kumar
mesh_terms: D000383:Agriculture; D004784:Environmental Monitoring; D005659:Fungicides, Industrial / Q000032:analysis*; D007194:India; D007700:Kinetics; D008689:Methacrylates / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D011743:Pyrimidines / Q000032:analysis*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis*; D000073739:Strobilurins; D027843:Vitis / Q000737:chemistry*
chemical_list: D005659:Fungicides, Industrial; D008689:Methacrylates; D010573:Pesticide Residues; D011743:Pyrimidines; D012987:Soil; D012989:Soil Pollutants; D000073739:Strobilurins; C087670:azoxystrobin