PESTICIDE RESIDUES IN FOOD - 1982
Sponsored jointly by FAO and WHO
EVALUATIONS 1982
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
Rome, 23 November - 2 December 1982
Food and Agriculture Organization of the United Nations
Rome 1983
DICHLOFLUANID
Explanation
Dichlofluanid was evaluated in 1969, 1974, 1977, 1979 and 1981
(FAO/ WHO 1970, 1975, 1978, 1980, 1982) 1. Recommendations were made
in 1979 for retaining the temporary MRLs for blackberries, eggplant,
peppers, cereal grains and wheat straw based on existing national
maximum residue limits for those commodities and data were required by
1982. In response to a request from the 12th (1980) Session of CCPR,
the temporary MRL on blackberries was reconsidered in 1981, taking
into account new information which resulted in a recommendation for a
new temporary MRL of 10 mg/kg.
No new information was available on residues in eggplant, cereal
grains or wheat straw resulting from supervised trials; however, new
data on peppers were received.
RESIDUES IN FOOD AND THEIR EVALUATION
RESIDUES RESULTING FROM SUPERVISED TRIALS
Data were received from Bayer, A.G. (Bayer 1981, 1982) on the
results of field trials on peppers in Spain (Table 1).
Table 1. Residues of Dichlofluanid on Peppers
Rate of
Crop Variety Application Number of Interval after Residue
(kg a.i./ha) Applications last appl.(days) (mg/kg)
Pepper Valenciano 1.0 6 0 0.2
1 -
3 0.1
7 0.1
14 <0.1
Blue Star 1.0 6 0 0.1
1 -
3 <0.1
7 <0.1
14 <0.1
1 See Annex 2 for FAO and WHO documentation.
NATIONAL MAXIMUM RESIDUE LIMITS
A new list of national maximum residue limits was made available
to the Meeting, which provides more detail and supplements previously
published lists (Table 2).
APPRAISAL
Some new residue data were received from the manufacturer, based
on the analysis of dichlofluanid only, which indicate that levels on
peppers would not be likely to exceed 0.2 mg/kg. The previously
recommended MRL of 2 mg/kg is therefore adequate and does not need
revision.
Although no new field trial data were received on residues in
eggplant, cereal grains or wheat straw, a re-examination of the data
on which previous recommendations were based shows that the analyses
for eggplant and cereal grains (wheat, barley) were based on parent
compound only and the recommended values are supported. In the case of
wheat straw, the restricted use patterns do not seem to warrant
further need for residue data or changes in recommendations.
Table 2. National Maximum Residue Limits and/or Preharvest
Intervals for Dichlofluanid
Safety MRL
Country Crop Interval (days) (mg/kg)
Austria Beans 14 3.0
Cucumbers 14 3.0
Grapes 14 15.0
Lettuce 14 10.0
Onions 14 1.0
Other fruit 14 5.0
Small fruit (excl. 14 15.0
strawberries)
Strawberries 14 10.0
Tomatoes 14 3.0
Belgium Blackberries 7 5.0
Cucumbers (under glass) 3 5.0
Currants 21 5.0
Gherkins (under glass) 3 5.0
Grapes 42 5.0
Melons (under glass) 3 5.0
Other fruit (excl. 5.0
citrus)
Raspberries 7 5.0
Strawberries 7 5.0
Strawberries (under glass) 14 5.0
Tomatoes (under glass) 3 5.0
Vegetables (excl. 5.0
potatoes)
Bulgaria Grapes 14
Strawberries 14
Cyprus Grapes 28
Strawberries 10-14
Vegetables 10-14
Czechoslovakia Grapes 21
Denmark Artichokes 2.0
Asparagus 2.0
Beans 2.0
Brussels sprouts 2.0
Cabbage 2.0
Cauliflower 2.0
Cherries 10.0
Table 2. (con't)
Safety MRL
Country Crop Interval (days) (mg/kg)
Cucumbers 2.0
Eggplant 2.0
Gherkins 2.0
Grapes 10.0
Leafy vegetables 10.0
Peas 2.0
peppers 2.0
Pome fruit 5.0
Pumpkins 2.0
Rhubarb 2.0
Small fruit 10.0
Stone fruit 5.0
Tomatoes 2.0
Zucchini 2.0
Finland Fruit, general 14 1.01
Strawberries 14 4.01
France Grapes 7
Tomatoes 2
Vegetables (excl. 7
tomatoes)
German Brassicas <0.1
Democratic Cereals <0.1
Republic Citrus fruit <0.1
Food crops for infants <0.1
diet
Fruiting vegetables <0.1
Grapes 35
Leafy vegetables <0.1
Legume vegetables <0.1
Milled products <0.1
Nuts <0.1
Onions <0.1
Pome fruit <0.1
Potatoes <0.1
Root vegetables <0.1
Small fruit 2.0
Stem vegetables <0.1
Stone fruit <0.1
Strawberries 14 2.0
Table 2. (con't)
Safety MRL
Country Crop Interval (days) (mg/kg)
Crops treated by drift:
Food crops 14
Fodder crops 7
Vegetable fat <0.1
Animal fat <0.1
Eggs <0.1
Fish <0.1
Meat <0.1
Milk <0.1
Drinking water 1
0.02 mg/l
German Beans 3.0
Federal Cucumbers 2 3 3.0
Republic Grapes 35 15.0
Hops 14
Lettuce 2 21 10.0
Onions 1.0
Peppers 3.0
Pome fruit 7 5.0
Small fruit (excl. 14 15.0
strawberries)
Strawberries 7 10.0
Tomatoes 2 3
3.0
All other fruit 5.0
Israel Grapes 7
Strawberries 3
Italy Grapes 20 1.0
Strawberries 20 1.0
Japan Cucumbers 3 0.05
Eggplant 3 0.05
Fruit (excl. 0.05
strawberries)
Hops 30 0.05
Lettuce 21 0.05
Onions 7 0.05
Spanish peppers 3 0.05
Strawberries 1 5.0
Tomatoes (field grown) 3 0.05
Tomatoes (under glass) 30 0.05
Table 2. (con't)
Safety MRL
Country Crop Interval (days) (mg/kg)
Luxembourg Fruit 5.0
Vegetables 5.0
Netherlands Blackberries 7 5.0
Cucumbers 3 5.0
Kohlrabi 14 5.0
Melons 3 5.0
Pears 5.0
Peppers 3 5.0
Raspberries 7 5.0
Strawberries 7 5.0
Strawberries (under glass) 14 5.0
Other berry fruit 21 5.0
Snake gourds 3 5.0
Tomatoes 3 5.0
New Zealand Berry fruit 3 10.0
Fruit (excl.berry- and 14 5.0
small fruit)
Onions 14 5.0
Small fruit (excl. 14 10.0
berry fruit)
Tomatoes 3 5.0
Vegetables (excl. 14 5.0
tomatoes)
Norway Strawberries 7
Poland Cucumbers 2 14
Hops 14
Lettuce 2 14
Pears 14
Raspberries 14
Spinach 14
Tomatoes 2 14
Portugal Apples 84
Grapes 21
Strawberries 7
Table 2. (con't)
Safety MRL
Country Crop Interval (days) (mg/kg)
South Africa Apricots 0.5
Peaches 0.5
Plums 0.5
Table Grapes 7/28/42 3 1.0
Wine grapes 14/28/42 3 1.0
Spain Almonds 20
Grapes 20/21 3
Onions 20
Other fruit 20-21 3
Pulse crops 20
Strawberries 20-21 3
Vegetables 20-21 3
Sweden Fruit 7 5.0
Small fruit (incl. 7 5.0
strawberries)
Vegetables (incl. 7 5.0
root vegetables)
Switzerland Blackberries 10 7.0
Grapes 1.0
Pome fruit 21 0.5
Raspberries 14 7.0
Stone fruit 21
Strawberries 14 7.0
U.K. Blackberries 21
Cauliflower (under 21
glass)
Currants 21
Gooseberries 21
Loganberries 21
Raspberries 14
Strawberries 14
Table grapes 21
Tomatoes (under glass) 3
Wine grapes 35
USSR Apples 20
Grapes 30
Table 2. (con't)
Safety MRL
Country Crop Interval (days) (mg/kg)
Venezuela Grapes 15 10.0
Strawberries 15 10.0
Vegetables 15 10.0
Yugoslavia Fruit (excl. grapes 14 5.0
and strawberries)
Grapes 28 10.0
Strawberries 28 5.0
1 Suggested level;
2 Field grown and under glass;
3 Depending on formulation used.
New information on national tolerances was received, which
supplements previously published tables with more detail.
The requirements of the 1979 JMPR now having been met for cereal
grains, eggplant, peppers and wheat straw (and blackberries in 1981),
the temporary maximum residue limits on those commodities and all
others previously considered remain temporary pending the
establishment of a full ADI.
REFERENCES
Bayer, A.G. Pflanzenschutzmittel - Ruckstande, Report numbers 8107/80,
1981 8108/80. Leverkusen, Federal Republic of Germany.
(Unpublished)
Bayer, A.G. Compilation of national MRLs and safety intervals for
1982 dichlofluanid. Leverkusen, Federal Republic of Germany.
(Personal communication)
See Also:
Toxicological Abbreviations
Dichlofluanid (FAO/PL:1969/M/17/1)
Dichlofluanid (WHO Pesticide Residues Series 4)
Dichlofluanid (Pesticide residues in food: 1977 evaluations)
Dichlofluanid (Pesticide residues in food: 1979 evaluations)
Dichlofluanid (Pesticide residues in food: 1981 evaluations)
Dichlofluanid (Pesticide residues in food: 1983 evaluations)