versión On-line ISSN 0718-0764
DIAZ, Bibiana; SAAVEDRA, Olga N; BORKOSKY, Susana y BOVI MITRE, Maria G. Degradation of Pyrimethanil in Strawberries (Fragaria x ananassa Dutch.). Inf. tecnol. [online]. 2007, vol.18, n.2, pp. 49-52. ISSN 0718-0764. doi: 10.4067/S0718-07642007000200007.
The degradation of the fungicide Pyrimentanil in a Fragaria x ananasse Duch crop in the Province of Tucumán, Argentina was investigated. Two treatments were done with four repetitions and the maximum and minimum doses recommended in the literature were used. Harvested fruits were removed with organic solvents and Pirimetanil was quantified in the extracts using high resolution liquid-liquid chromatography. In the treatment where the maximum dose was applied, the residues found on the 11th day were 1.72 mg/kg. This situation is different when the minimum dose is applied, since on the third day residue values below the maximum limit were registered (1mg/kg). The lack period for the test region is different from that established by argentinean legislation, making evident the need of performing analyses in each agro-ecological area.
Palabras clave : fragaria; pyrimethanil; fungicide; degradation curves.