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Dissipation Rates of Cyprodinil and Fludioxonil in Lettuce and Table Grape in the Field and under Cold Storage Conditions

Author:
Marín, Antonio, Oliva, José, Garcia, Carlos, Navarro, Simón, Barba, Alberto
Source:
Journal of agricultural and food chemistry 2003 v.51 no.16 pp. 4708-4711
ISSN:
0021-8561
Subject:
cold storage, cyprodinil, disease control, field experimentation, fludioxonil, gas chromatography, grapes, lettuce, maximum residue limits, storage conditions
Abstract:
Two fungicides (cyprodinil and fludioxonil) have recently been used in southeast Spain to control disease in lettuce and grape. Gas chromatography with a nitrogen−phosphorus detector (GC-NPD) was used to study the disappearance of these compounds from crops under field conditions and during refrigeration. Residual values 21 days after application were below the maximum residue limit (MRL = 0.05 mg kg-1) established by Spanish law in the field experiment for both compounds. However, with the exception of fludioxonil in lettuce, residues were above the MRL in the refrigerated farm produce for both fungicides. The half-lives were 3−6 times greater under refrigeration.
Agid:
322325