PESTICIDE RESIDUES IN FOOD - 1981


    Sponsored jointly by FAO and WHO






    EVALUATIONS 1981







    Food and Agriculture Organization of the United Nations
    Rome

    FAO PLANT PRODUCTION AND PROTECTION PAPER 42

    pesticide residues in food:
    1981 evaluations

     the monographs

    data and recommendations
    of the joint meeting
    of the
    FAO panel of experts on pesticide residues
    in food and the environment
    and the
    WHO expert group on pesticide residues

    Geneva, 23 November-2 December 1981

    FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
    Rome 1982

    THIABENDAZOLE

    Explanation

         The 1979 JMPR estimated a maximum residue level of 1 mg/kg of
    thiabendazole on strawberries.* Further new data were available from
    the Netherlands on the use of thiabendazole smoke formulations on
    strawberries grown under glass.

    RESIDUES ON FOOD

    RESIDUES RESULTING FROM SUPERVISED TRIALS

         The results shown in Table 1 are from trials on strawberries
    under glass in 1977 using 60 g smoke tablet containing 12%
    thiabendazole at the rate of 1 table/100 m3, i.e. 7.2 g a.i./100 m3.

    TABLE 1.  Thiabendazole residues on strawberries, The Netherlands
                                                                        

                  Total           Residues (mg/kg) at intervals (days)
    No. of        thiabendazole           after last application
    treatments    (g/100 m3)      Control   3         4         6
                                                                        

       7             50.4          0.54               1.35
                                   0.54               0.18
                                                     <0.05
                                                      0.14
       7             50.4         <0.05                         0.06
                                  <0.05                         0.07
                                                                0.05
                                                                0.07
       7             43.2          n.d.               2.4
                                   n.d.               2.5
                                                      1.5
                                                      2.4
       6             43.2          n.d.     0.59
                                   n.d.     0.95
                                            1.10
                                            1.5
                                                                        

              

    *  See Annex II for FAO and WHO documentation.

    EVALUATION

    APPRAISAL

         A maximum residue level of 3 mg/kg may be present 4 days after
    the last treatment. This level is suitable for establishing a maximum
    residue level.

    REFERENCES

    Netherlands. Submission from The Netherlands delegation to the Codex
    1981      Committee on Pesticide Residues.

    See Also:
       Toxicological Abbreviations
       Thiabendazole (WHO Food Additives Series 39)
       Thiabendazole (AGP:1970/M/12/1)
       Thiabendazole (WHO Pesticide Residues Series 1)
       Thiabendazole (WHO Pesticide Residues Series 2)
       Thiabendazole (WHO Pesticide Residues Series 5)
       Thiabendazole (Pesticide residues in food: 1977 evaluations)
       Thiabendazole (Pesticide residues in food: 1979 evaluations)