title: Multilocation field trials for risk assessment of a combination fungicide Fluopicolide + Propamocarb in tomato.
abstract: Dissipation kinetics of two systemic fungicides, namely fluopicolide and propamocarb used as a combination formulation (Infinito 68.75 SC), were studied on tomato at four different locations by the All India Network Project on Pesticide Residues to recommend their pre-harvest interval (PHI) and to propose the maximum residue limits (MRL) for the two fungicides based on chronic hazard exposure assessment. The combination fungicide was sprayed thrice at the recommended dosage of 93.75 g a.i./ha fluopicolide and 937.50 g a.i./ha propamocarb as well as at double the recommended dosage of 187.50 g a.i./ha fluopicolide and 1875.0 g a.i./ha propamocarb on tomato crops and the residues were monitored periodically by GC-MS. The fungicides dissipated to below the limit of quantification (LOQ) within 10 to 15 days, with a half-life of 2-4 days for fluopicolide and 1-2 days for propamocarb. Taking into consideration the MRLs of codex and calculations made using the method of MRL fixation of the Food Safety and Standard Authority of India (FSSAI) as well as the Organization for Economic Co-operation and Development (OECD) calculator, MRL of 5 mg/kg is proposed for fluopicolide and 15 mg/kg for propamocarb, following critical exposure of the commodity considering PHI of 1 day.
authors.affiliation: All India Network Project on Pesticide Residues, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India. kksaicrp@yahoo.co.in.
authors.forename: K K
authors.initials: KK
authors.lastname: Sharma
authors.affiliation: Anand Agricultural University, Anand, Gujarat, India.
authors.forename: V R
authors.initials: VR
authors.lastname: Shukla
authors.affiliation: Anand Agricultural University, Anand, Gujarat, India.
authors.forename: A R
authors.initials: AR
authors.lastname: Patel
authors.affiliation: Anand Agricultural University, Anand, Gujarat, India.
authors.forename: K M
authors.initials: KM
authors.lastname: Vaghela
authors.affiliation: Anand Agricultural University, Anand, Gujarat, India.
authors.forename: H K
authors.initials: HK
authors.lastname: Patel
authors.affiliation: Anand Agricultural University, Anand, Gujarat, India.
authors.forename: Paresh G
authors.initials: PG
authors.lastname: Shah
authors.affiliation: Bidhan Chandra Krishi Vishwavidyalaya, Kalyani, West Bengal, India.
authors.forename: Hemanta
authors.initials: H
authors.lastname: Banerjee
authors.affiliation: Bidhan Chandra Krishi Vishwavidyalaya, Kalyani, West Bengal, India.
authors.forename: Tirthankar
authors.initials: T
authors.lastname: Banerjee
authors.affiliation: Bidhan Chandra Krishi Vishwavidyalaya, Kalyani, West Bengal, India.
authors.forename: Ram K
authors.initials: RK
authors.lastname: Hudait
authors.affiliation: ICAR-Indian Horticultural Research Institute, Bangalore, Karnataka, India.
authors.forename: Debi
authors.initials: D
authors.lastname: Sharma
authors.affiliation: Punjab Agricultural University, Ludhiana, Punjab, India.
authors.forename: S K
authors.initials: SK
authors.lastname: Sahoo
authors.affiliation: Punjab Agricultural University, Ludhiana, Punjab, India.
authors.forename: Balwinder
authors.initials: B
authors.lastname: Singh
authors.affiliation: All India Network Project on Pesticide Residues, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
authors.forename: Vandana
authors.initials: V
authors.lastname: Tripathy
mesh_terms: D001549:Benzamides / Q000032:analysis*; D002219:Carbamates / Q000032:analysis*; D004784:Environmental Monitoring; D005659:Fungicides, Industrial / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry; D006207:Half-Life; D007194:India; D057230:Limit of Detection; D018551:Solanum lycopersicum / Q000737:chemistry*; D010573:Pesticide Residues / Q000032:analysis*; D018570:Risk Assessment
chemical_list: D001549:Benzamides; D002219:Carbamates; D005659:Fungicides, Industrial; D010573:Pesticide Residues; C557577:fluopicolide; C033205:propamocarb
keywords: Analytical method; Fluopicolide; GC-MS; MRL; Propamocarb; Systemic fungicide; Tomato