RESIDUE AND ANALYTICAL ASPECTS
Tebufenozide was first evaluated by the 1996 JMPR, which recommended MRLs for grapes, pome fruits, husked rice and walnuts. Trials on kiwifruit could not be related to GAP in New Zealand and no maximum residue level could be estimated.
The New Zealand Government and the manufacturer requested the JMPR to re-evaluate the residue data on kiwifruit in the light of revised New Zealand GAP, in which the PHI has been increased from 21 to 90 days.
The residues in the trials reported in 1996 which reflect the revised New Zealand GAP (median underlined) were 0.05, 0.08, 0.19 and 0.22 mg/kg.
In two trials in the USA with 4 applications at 0.15 kg ai/ha and a 90-day PHI, the residues were 0.09 and 0.15 mg/kg. Although these results cannot be related to the reported GAP, they can be considered as supplementary supporting information.
The Meeting concluded that although the data were limited they were just sufficient to estimate a maximum residue level of 0.5 mg/kg and an STMR of 0.14 mg/kg for kiwifruit.
