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    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

    PHOSMET

    Explanation

         Phosmet has been reviewed previously (1976, 1978 and 1979).*
    Temporary limits were estimated for a variety of commodities in 1978
    and one was amended in 1979. In response to commitments at the Twelfth
    Session of the Codex Committee on Pesticide Residues, additional
    information has been provided for several commodities and are reviewed
    in this addendum.

    RESIDUES IN FOOD

    USE PATTERN

         Additional information on national good agricultural practices
    has been submitted and is summarized in Table 1 (Canada 1980; Stauffer
    Chemical Co. 1981a, b). These agricultural practices differ from
    previous submissions largely in that shorter pre-harvest intervals and
    higher applications rates are used nationally than previously reported
    to the Meeting.

    RESIDUES RESULTING FROM SUPERVISED TRIALS

         Residue trials were conducted on eight commodities in two
    countries, for which residue data are summarized in Table 2 (Stauffer
    Chemical Co. 1981b). Each commodity is discussed below.

    Apple and pear

         A temporary maximum residue level (MRL) of 1 mg/kg for both
    apples and pears was recommended at the 1978 Meeting. This
    recommendation was based on a pre-harvest interval (PHI) of 21 days
    and presumably on a rate of 1.5-3.0 kg a.i./ha. In supervised trials
    reported to this Meeting, spray applications of phosmet to apples and
    pears at rates approximating the good agricultural practices of
    Table 1, resulted in residues up to 10 mg/kg in apples at 0 days and
    10.4 mg/kg in pears at 1 day. National MRLs of 10 mg/kg for apples and
    pears were reported to the Meeting.

              

    *  See Annex II for FAO and WHO documentation



        Table 1. Good agricultural practices for phosmet in Canada and the USA

                                                                                                                      

                                           Application                   Pre-harvest           Other3
    Crop           Country         Rate (a.i.)        Formulation1       Interval (days)       Restrictions
                                                                                                                      

    Apple          Canada          625 g/1000 L       WP                 1
                   USA             5.6 kg/ha          WP                 0

    Pear           Canada          625 g/1000 L       WP                 1
                   USA             5.6 kg/ha          WP                 0

    Peach          Canada          625 g/1000 L       WP                 1
                   USA             3.36 kg/ha         WP                 14

    Apricot        USA             3.36 kg/ha         WP                 14

    Nectarine      USA             3.36 kg/ha         WP                 14

    Grape          Canada          625 g/1000 L       WP                 7                   maximum of 2500 l/ha
                   USA             1.12 kg/ha         WP2                7
                   NE only         1.68 kg/ha         WP                 14

    Cranberry      USA             1.12 kg/ha         WP                 0

    Carrot         Canada          1.1 kg/ha          WP                 40                  maximum of 2 applications
                                                                                             per season
                                                                                                                      

    1  Based on the residue trial information submitted to the Meeting,
       the formulation is presumed to be 50 WP

    2  In addition to the 50 WP residue trial data, some residue trial
       data was submitted using a 5% dust on grapes.

    3  Unless restrictions are given, phosmet may be applied as often
       as necessary.

    TABLE 2.  Residues of phosmet resulting from supervised field trials
                                                                                                                                             

                              Application                       Residues (mg/kg) at
                   Country/                                     intervals (days) after application
                                                                                                                                             
    Crop           Year                Rate                               Residue range       No. of         Reference1
                              No.   (kg a.i./ha)  Formulation   Days      (Average residue)   samples
                                                                                                                                             

    Apples         USA
                   CT,MI      7-9   1.68          50 WP         1         <0.40-3.75             5           A(6), A(12),
                   OH                                                     (2.21)                             A (11)
                   1965
                                                                7         <0.40-3.93             6
                                                                          (2.41)

                                                                14         0.38-0.72             6
                                                                          (0.51)

                                                                21-23      0.26-0.78             4
                                                                          (0.55)

                   CA, NY,    1-8   1.96-2.24     50 WP         0          2.14-2.47             3           A(9), A(5),
                   MI                                                     (2.36)                             A(15)
                   1964-65
                                                                1          1.67-1.68             3
                                                                          (1.67)

                                                                7-8        0.70-1.83             5
                                                                          (1.15)

                                                                14-15      0.58-1.36             4
                                                                          (0.88)
                                                                                                                                             

    TABLE 2.  (con't)
                                                                                                                                             

                              Application                       Residues (mg/kg) at
                   Country/                                     intervals (days) after application
                                                                                                                                             
    Crop           Year                Rate                               Residue range       No. of         Reference1
                              No.   (kg a.i./ha)  Formulation   Days      (Average residue)   samples
                                                                                                                                             

                                                                21-23      0.17-1.21             6
                                                                          (0.80)

                                                                49         0.26                  1

                   NY, OR,    1-6   3.36-4.48     50 WP         0          2.67-5.07             4           A(13),A(3),
                   PA, WA                                                 (4.10)                             A(8), A(16),
                   1962-65                                                                                   A(17),A(1),
                                                                1          3.81-5.88             5           A(4)
                                                                          (4.78)

                                                                7-9        1.24-4 23             9
                                                                          (2.75)

                                                                14-16      0.93-2.67             7
                                                                          (1.76)

                                                                21-23      0.92-2.56             8
                                                                          (1.40)

                                                                28         0.51-2.01             4
                                                                          (1.07)

                                                                35-42      0.64-0.71             2
                                                                          (0.68)

                                                                48         0.49                  1
                                                                                                                                             

    TABLE 2.  (con't)
                                                                                                                                             

                              Application                       Residues (mg/kg) at
                   Country/                                     intervals (days) after application
                                                                                                                                             
    Crop           Year                Rate                               Residue range       No. of         Reference1
                              No.   (kg a.i./ha)  Formulation   Days      (Average residue)   samples
                                                                                                                                             

                   USA
                   CA,MI      1-4   1.68-2.8      50 WP         0          4.31                  1           B(2)
                   NY                                                                                        B(7)
                   1965                                         1          1.35-2.64             3
                                                                           (2-08)

                                                                7-8        1.05-1.77             4
                                                                          (1.55)

                                                                12-15      0.03-1.29             5
                                                                          (0.65)

                                                                20-22      0.56-0.85             4
                                                                          (0.70)

    Pears          USA        1     4.48-5.60     50 WP         1          1.56-3.39             2           B(3) ,B(4)
                   OR,WA                                                  (2.48)
                   1965

                                                                7-8        1.19-1.75             3
                                                                          (1.47)

                                                                14-15      0.84-2.40             2
                                                                          (1.62)

                                                                20-21      0.71-0.99             2
                                                                          (0.85)
                                                                                                                                             

    TABLE 2.  (con't)
                                                                                                                                             

                              Application                       Residues (mg/kg) at
                   Country/                                     intervals (days) after application
                                                                                                                                             
    Crop           Year                Rate                               Residue range       No. of         Reference1
                              No.   (kg a.i./ha)  Formulation   Days      (Average residue)   samples
                                                                                                                                             

                   WA         3     6.72-8.96     50 WP         0          4.04-6.83             2           B(1), B/3)
                   1965                                                   (5.44)

                                                                1          2.43                  1

                                                                7          1.17-4.50             4
                                                                          (2.68)

                                                                14         1.02-3.51             3
                                                                          (2-52)

                                                                21         0.60-2.46             3
                                                                          (1.76)

    Peaches        Canada
                   ONT        1-2   2.24-3.36     50 WP         1          9.20-10.08            2           C(3),C(10)
                   1964-65

                                                                7          4.40-3.39             2

                                                                14         1.44-4.10             3
                                                                          (2.38)

                                                                21         1.66-1.73             2
                                                                                                                                             

    TABLE 2.  (con't)
                                                                                                                                             

                              Application                       Residues (mg/kg) at
                   Country/                                     intervals (days) after application
                                                                                                                                             
    Crop           Year                Rate                               Residue range       No. of         Reference1
                              No.   (kg a.i./ha)  Formulation   Days      (Average residue)   samples
                                                                                                                                             

    Peaches        USA
                   CA, VA     1-5   2.24-2.8      50 WP         1          2.64-3.40             4           C(6),C(7),
                   1963-65                                                (3.08)                             C(8),C(9),
                                                                                                             C(13)

                                                                2-3        1.57-3.93             5
                                                                          (2.68)

                                                                7-9        0.96-2.85             8
                                                                          (1.68)

                                                                14-16     0.59-1.62              7
                                                                          (0.99)

                                                                21-25      0.44-0.81             7
                                                                          (0.55)

    Cranberry      USA        2     0.56-0.84     50 WP         1          3.14-5.35             6           G (5)
                   NJ                                                     (3.85)
                   1970
                                                                3          2.10-4.66             5
                                                                          (3.04)

                                                                5          1.59-2.73             3
                                                                          (2.23)
                                                                                                                                             

    TABLE 2.  (con't)
                                                                                                                                             

                              Application                       Residues (mg/kg) at
                   Country/                                     intervals (days) after application
                                                                                                                                             
    Crop           Year                Rate                               Residue range       No. of         Reference1
                              No.   (kg a.i./ha)  Formulation   Days      (Average residue)   samples
                                                                                                                                             

    Grapes         USA
                   CA,NY      1-3   1.12-1.68     50 WP         0          3.9-6.17              6           F(2),F(3),
                   1963-69                                                (4.08)                             F(4),F(5),
                                                                                                             F(7),F(8)
                                                                7          1.1-4.84              8
                                                                          (2.74)

                                                                14         1.32-3.30             8
                                                                          (2.15)

                                                                21         0.96-2.05             6
                                                                          (1.56)

                                                                28-31      0.00-1.85             8
                                                                          (0.72)

                                                                35         0.92-1.50             4
                                                                          (1.22)

                   CA,NY      2-3   1.40-2.24     50 WP         0          8.2-13.6              6           F(6),F(9)
                   1967                                                  (11.27)

                                                                7          4.4-10.2              6
                                                                          (7.37)

                                                                14         4.0-9.2               6
                                                                          (6.1)
                                                                                                                                             

    TABLE 2.  (con't)
                                                                                                                                             

                              Application                       Residues (mg/kg) at
                   Country/                                     intervals (days) after application
                                                                                                                                             
    Crop           Year                Rate                               Residue range       No. of         Reference1
                              No.   (kg a.i./ha)  Formulation   Days      (Average residue)   samples
                                                                                                                                             

                                                                21         4.0-7.6               6
                                                                          (5.8)

                                                                28         3.3-6.5               5
                                                                          (5.12)

                                                                35         2.6-6.2               6
                                                                          (4.18)

                                                                48         0.113                 1

                   NY         3     0.7-0.84      50 WP         0          0.32-2.59             4           F(3),F(4),
                   1964-66                                                (1.79)                             F(5)

                                                                7          0.39-2.10             6
                                                                          (1.34)

                                                                14         0.67-1.40             6           F(3),F(4),
                                                                          (1.0)                              F(5)

                                                                21         0.32-0.90             6
                                                                          (0.63)

                                                                28         0.16-0.76             4
                                                                          (0.43)

                                                                42         0.28-0.55             4
                                                                                                                                             

    TABLE 2.  (con't)
                                                                                                                                             

                              Application                       Residues (mg/kg) at
                   Country/                                     intervals (days) after application
                                                                                                                                             
    Crop           Year                Rate                               Residue range       No. of         Reference1
                              No.   (kg a.i./ha)  Formulation   Days      (Average residue)   samples
                                                                                                                                             

                                    Repeat                                (0.44)
                                    application
                                    after 35 days               0          2.30-2.40             2

                                                                7          1.80-2.00             2

                   CA         1-2   1.68-2.24     5% dust       0          0.42-1.57             2           F(10),F(11),
                   1969                                                                                      F(12) ,F(13),
                                                                4          0.48-1.95             2           F(14) ,F(15)

                                                                7          0.017-0.78            4
                                                                          (0.29)

                                                                14         0.02

                                                                21         0.43

                   NY         3     2.80-3.36     50 WP         0          8.3-8.3               2           F(2)
                   1963

                                                                7          3.6-4.2               2

                                                                14         4.0-4.2  28          2

                                                                21         2.2-2-2               2
                                                                                                                                             

    TABLE 2.  (con't)
                                                                                                                                             

                              Application                       Residues (mg/kg) at
                   Country/                                     intervals (days) after application
                                                                                                                                             
    Crop           Year                Rate                               Residue range       No. of         Reference1
                              No.   (kg a.i./ha)  Formulation   Days      (Average residue)   samples
                                                                                                                                             

                   Canada     4     1.4           50 WP         1         10.5                   1           F(1)
                   Ont
                   1968                                         7          7.16                  1

                                                                14         5.79                  1

                                                                21         2.87                  1

                                                                45         1.55                  1

    Carrots        Canada     2     1.12          50 WP         42         0.006                 3           Stauffer
                   Ont                                                     0.009                             1981
                   1979                                                    ND

                                                                52         0.006                 3
                                                                           ND, ND
                                                                                                                                             

    TABLE 2.  (con't)
                                                                                                                                             

                              Application                       Residues (mg/kg) intervals (days) after application
                   Country/                                                                                                                  
                                       Rate
    Crop           Year       No.   (kg a.i./ha)  Formulation   0-3       5-10      11-16     20-25     27-32     35-40     Ref.1
                                                                                                                                             

    Apples         USA
                   NY         6     2.24          50 WP         5.26      3.31      2.86      1.26                          A(10)
                   1965                                         5.60      3.40      2.76      1.36

                   1964       7     1.12          50 WP         2.56                1.56                0.38                A(14)

                   PA         6     6.30          50 WP         6.51*     4.06      3.32      2.14      1.03                A(8)
                   1965                                         6.08*     4.26      2.58      2.13      1.31
                                                                                              2.08

                   VA         6     3.77          50 WP         9.98*     6.30      3.16      2.85                          A(7)
                   1965                                         8.91*     7.28      4.66      2.98
                                                                                              3.22

                   WA         1     2.24          25 WP         2.76*     0.86      0.78                0.46                A(18)
                   1961

                   Canada
                   B.C.       1     2.35          50 WP         2.16*     1.49      1.44      0.87                          A(2)
                   1965                                                   1.32      1.16

    Pears          Canada
                   Ont        2     2.24          50 WP         2.28      0.86      0.69      0.52                          B(6)
                   1965                                                   0.83

                   1964       3     3.36          50 WP         1.87      0.65      0.26                0.18                B(9)
                                                                                                                                             

    TABLE 2.  (con't)
                                                                                                                                             

                              Application                       Residues (mg/kg) intervals (days) after application
                   Country/                                                                                                                  
                                       Rate
    Crop           Year       No.   (kg a.i./ha)  Formulation   0-3       5-10      11-16     20-25     27-32     35-40     Ref.1
                                                                                                                                             

                   USA
                   WA         1     3.36          25 WP         1.27*     0.54               <0.1      <0.1                 B(10)
                   1961
                   1962       3     4.48          25 WP        10.4       5.61      1.25                0.41                B(8)

    Peaches        USA
                   CA         1     5.6           50 WP         6.15      5.20                          2.18                C(13)
                   1963

                   CT         9     1.68          50 WP         6.26      3.27      2.85                                    C(5)
                   1965                                         5.87      3.66      2.06

                   GA         1     2.24          50 WP         6.30      4.70      3.04                                    C(1)
                   1965                                        12.9      10.69      6.04
                                                                          9.76

                              5     3.36          50 WP         1.95*     1.72      0.69      0.50      0.29                C(12)

                   MI         7-8   1.15          50 WP         1.88      0.87      0.28     <0.10                          C(2)
                   1965       8 applications to days 1 and 7

                   PA         4     2.93          50 WP         9.81*    11.18      6.79      2.34      1.74                C(4)
                   1965                                        10.30*    10.75      3.38      1.93      1.86
                                                               12.7*     11.32      2.85                2.34

                   1964       5-7   3.36          50 WP                             5.17      1.13                0.58      C(11)
                              6 applications to day 10 and 7 to day 22
                                                                                                                                             

    TABLE 2.  (con't)
                                                                                                                                             

                              Application                       Residues (mg/kg) intervals (days) after application
                   Country/                                                                                                                  
                                       Rate
    Crop           Year       No.   (kg a.i./ha)  Formulation   0-3       5-10      11-16     20-25     27-32     35-40     Ref.1
                                                                                                                                             

                   WA         1     3.36          50 WP         2.86*     1.78      1.13      0.74      0.50                C(14)
                   1963

    Apricots       USA        1     4.2           50 WP         3.63*     2.65      1.22      0.00      1.00                D(1),D(2),
                   CA                                           9.64*     4.73      2.78      0.00                          D(3)
                   1967                                        11.59*     4.23      1.20      1.69      0.09

    Nectarine      USA
                   CA         1-2   4.2           50 WP         4.05      2.26      0.55      0.05      0.22      0.39      E(2),E(3),
                   1967-                                                                                0.22      0.39      E(4),E(5),
                   1968                                                                                 0.35
                                                                                                        0.35

                   1965       1     2.24          50 WP         0.67      0.81      4.50     <0.02                          E(1)
                                                                                             <0.02

    Cranberry      USA
                   MA,NJ      1-2   1.12          50 WP         7.60*     2.44      0.32                         <0.01      G(1),G(2),
                   WA                                           6.19*     1.37      0.70                         <0.01      G(3),G(4),
                   1972-                                        1.31*     1.12      0.01                (77 days)           G(6)
                   1973                                         1.32      0.04
                                                                                                                                             

    1  All references are to Stauffer 1981 a,b.

    * = Zero days.
        Peach

         In supervised trials reported to this Meeting, multiple spray
    applications of phosmet to peaches approximating the good agricultural
    practices of Table 1 resulted in residues up to 12.9 mg/kg at 1 day
    and 6.8 mg/kg at 14 days. Residues up to 6 mg/kg also resulted from a
    single application at 14 days. About half of the data at 0 or 1 day
    were above 5 mg/kg, which is consistent with some national MRLs of
    10 mg/kg. No residue data were available from the one country for
    which a one day pre-harvest interval is good agricultural practice. A
    temporary MRL of 1 mg/kg was recommended at the 1978 Meeting. This
    recommendation was based on a PHI of 21 days and 1.0 g a.i./l,
    presumably applied at a rate of 1000 l/ha to 2000 l/ha, which would
    result in an application rate of 1.0 - 2.0 kg a.i./ha.

    Apricot and nectarine

         The temporary MRL recommended by the 1978 Meeting was 1 mg/kg
    and was based on the same PHI and application rates as peaches. In
    supervised trials reported to this meeting, one to two spray
    applications of phosmet to apricots and nectarines at rates
    approximating the good agricultural practices of Table 1 resulted in
    residues up to 2.8 mg/kg in apricots and 4.7 mg/kg in nectarines at 14
    days. These residues are consistent with some national MRLs reported
    to the Meeting.

    Grape

         A temporary MRL of 5 mg/kg was recommended by the 1978 Meeting
    and was based on a PHI of 21 days. In supervised trials reported to
    this Meeting, multiple spray and dust applications of phosmet to
    grapes at rates approximating the good agricultural practices in Table
    1 resulted in residues up to 10.2 mg/kg at 7 days from nearly twice
    the recommended rate and 6.8 mg/kg at 7 days from 1.25 times the
    recommended rate. At 14 days and at 1.25 times the recommended rate,
    residues ranged to 9.2 mg/kg. These residues are consistent with some
    national MRLs reported to the Meeting: Residue data were available
    from only one of the two countries from which good agricultural
    practice information was available.

    Cranberry

         A temporary MRL of 5 mg/kg was recommended by the 1978 Meeting
    and was based on a 7-day PHI. In supervised trials reported to this
    Meeting, one to two spray applications of phosmet to cranberries at
    rates approximating the good agricultural practices of Table 1
    resulted in residues up to 7.6 mg/kg at 0 days from the recommended
    rate.

    Carrot

         No MRLs have been recommended by the Meeting. Only one supervised
    trial was submitted. The highest residue reported at 42 days was
    0.009 mg/kg, as measured with a flame photometric, gas chromatographic
    method.

    NATIONAL MAXIMUM RESIDUE LIMITS REPORTED TO THE MEETING

                                                          

                                        National MRL
                                          (mg/kg)
                                                          

    Crop                          Canada              U.S.
                                                          

    Apple                         10                  10

    Apricot                       -                    5

    Cranberry                     -                   10

    Grape                         10                  10

    Peach                         10                  10

    Pear                          10                  10

    Nectarine                     -                    5
                                                          

    EVALUATION

    APPRAISAL

         Additional good agricultural practice information and residue
    data for phosmet on several fruit crops have been received and
    reviewed by this Meeting. The data and information submissions were in
    support of comments of some delegations of the Twelfth Session of the
    Codex Committee on Pesticide Residues that the temporary MRLs
    estimated for these crops by the 1978 Joint Meeting were too low to
    accommodate their good agricultural practices.

         The residue data provided are consistent with the MRLs estimated
    in 1978 when the same 21 day pre-harvest interval is observed.
    However, on the basis of the good agricultural practice information
    provided to this Meeting, applications on or near the day of harvest

    are required on several of these commodities and at substantially less
    than 21 days on the others. At these shorter pre-harvest intervals,
    both the new and previously reviewed data support higher MRL
    estimates.

    RECOMMENDATIONS OF RESIDUE LIMITS

         The Meeting examined residue data from supervised trials
    reflecting current good agricultural practice on a number of crops.
    From these data, the Meeting was able to estimate the MRLs that were
    likely to occur when phosmet was used and when the reported intervals
    between last application and harvest were observed. These are
    recommended changes to the previously recommended MRLs and are
    summarized below.

    <                                                                                              

    Commodity      Previously recommended   Previous PHI on which     Recommended PHI on which
                   MRL (mg/kg)              levels are based (days)   levels are based
                                                                      MRL (mg/kg)     (days)
                                                                                              

    Cranberry             5                          21                     10          0

    Grape                 5                          21                     10          7

    Apple                 1                          21                     10          0

    Peach                 1                          21                     10          1

    Pear                  1                          21                     10          0

    Apricot               1                          21                      5         14

    Nectarine             1                          21                      5         14
                                                                                              
    
    REFERENCES

    Canada. Plant Products and Quarantine Directorate, Ontario, Canada.
    1980      Canadian Registration Data.

    Stauffer Chemical Company. Phosmet Residues. Carrots (Unpublished)
    1981a

    Stauffer Chemical Company. Imidan Insecticide Crop Residue Data. A.
    1981b     Apples. Report Numbers (1) A906, (2) A1004, (3) A1563, (4)
              A1660, (5) A1751, (6) A1939, (7) A1948, (8) A1963, (9)
              A1962; A 1978, (10) A1977, (11) A1983, (12) 2011; 2015, (13)
              4521, (14) 4524, (15) 4614, (16) 3516, (17) 3061, (18) 3490.
              B. Pears. Report Numbers: (1) A910, (2) A1412, (3) A1663,
              (4) A1668, (5) A1979, (6) A1989 (7) A2035; A2039, (8) 3512,
              (9) 4515, (10) 3479. C. Peaches. Report numbers: (1) A2403,
              (2) A2027; A2031, (3) A1986, (4) A1957, (5) A1944, (6)
              A1940, (7) A1726, (8) A1420, (9) A1416, (10) 4525, (11)
              4356, (12) 3709, (13) 5400, (14) 4631, (15) B1091. D.
              Apricots. Report numbers: (1) A395, (2) A396, (3) A397. E.
              Nectarines. Report numbers: (1) A1734, (2) B1090, (3) A0231,
              (4) A0232, (5) A0233. F. Grapes. Report numbers: (1) B0535,
              (2) Cornell 1963, (3) Cornell 1964, (4) Cornell 1965, (5)
              Cornell 1966, (6) Cornell 1967, (7) B0104, (8) B01o5, (9)
              B0698, (10) B0665, (11) B0651, (12) B1075, (13) B1073, (14)
              B0106, (15) BO107. G. Cranberries. Report numbers: (1)
              A6054, (2) A6013, (3) A6014, (4) B1805, (5) 1-21-SK-71, (6)
              A8166; A8167. (Unpublished)


    See Also:
       Toxicological Abbreviations
       Phosmet (ICSC)
       Phosmet (JMPR Evaluations 2003 Part II Toxicological)
       Phosmet (Pesticide residues in food: 1976 evaluations)
       Phosmet (Pesticide residues in food: 1978 evaluations)
       Phosmet (Pesticide residues in food: 1979 evaluations)
       Phosmet (Pesticide residues in food: 1984 evaluations)
       Phosmet (Pesticide residues in food: 1994 evaluations Part II Toxicology)