MRLs extrapolation proposal within miscellaneous fruits

摘要

As a result of the European review programme for existing active substances regulated by Directive 91/414/EEC, the number of plant protection products (PPP) currently authorized for crops in Europe has decreased significantly. This situation may be particularly alarming for minor crops where frequently few PPP are registered and, in the majority of cases, there are no harmonized Maximum Residue Limits (MRLs) established or they are fixed in the limit of quantification (LOQ). The system for setting MRLs for minor crops is frequently based on simple extrapolation from values already set in similar major crops according with European guidelines. However the suggested extrapolation system is not evident for all the vegetable groups, this is the case inthe group of miscellaneous fruits. Field trials have been performed in kaki trees with PPP containing captan, fenitrothion and trichlorfon that are authorized in Spain in different crops of this group. MRLs have been calculated and a critical study on possible extrapolation of these results to other crops within this group is discussed.