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. 2023 Jan 9;21(1):e07717. doi: 10.2903/j.efsa.2023.7717
Primary crops (available studies) Crop groups Crops Applications Sampling (DAT) Comment/Source
Root crops Sugar beet Foliar: 4 × 0.29 kg/ha; interval 14 days 7 DALA: roots, tops, leaves [U‐14C‐phenyl] prothioconazole (EFSA, 2014)
Foliar: 4 × 0.29 kg/ha; interval 14 days 7 DALA: roots, tops, leaves [3,5‐14C‐triazole] prothioconazole (EFSA, 2014)
Cereals/grass Wheat Foliar (spring wheat): 2 × 0.22 kg/ha; BBCH 32–65 6 DALA: forage [U‐14C‐phenyl] prothioconazole (EFSA, 2007b)
26 DALA: hay
48 DALA: grain and straw
Foliar (summer wheat): 2 × 0.25 kg/ha; interval 27 days (BBCH 31–59) 0, 14 DALA: forage [3,5‐14C‐triazole] prothioconazole‐desthio (EFSA, 2007b)
48 DALA: grain and straw
Foliar (spring wheat): 2 × 0.18/0.29 kg/ha; BBCH 32–65 Forage, hay, grain, straw [3,5‐14C‐triazole] prothioconazole (EFSA, 2014)
Seed (spring wheat): 1 × 0.02 or 0.10 kg/100 kg seeds (ca. 220 kg seeds/ha) 57 DAT: forage [U‐14C‐phenyl] prothioconazole (EFSA, 2007b)
110 DAT: hay
153 DAT: grain and straw
Pulses/oilseeds Peanuts Foliar: 3 × 0.3 kg/ha; interval 21 days (BBCH 66–75) 14 DALA: hays and nuts without shells [U‐14C‐phenyl] prothioconazole (EFSA, 2007b)
Foliar: 3 × 0.3 kg/ha; interval 21 days (BBCH 66–75) 14 DALA: hays and nuts without shells [3,5‐14C‐triazole] prothioconazole (EFSA, 2014)
Rotational crops (available studies) Crop groups Crops(s) Applications PBI (DAT) Comment/Source
Root/tuber crops Turnips Soil, 1 × 580 g/ha 28, 146, 269

[U‐14C‐phenyl] prothioconazole (EFSA, 2007b; FAO, 2008a, 2008b); 2.9 N onion/ shallot/ garlic GAP;

Crops of the 1st, 2nd and 3rd rotation were sown at day 28, 149 and 269, respectively.

Sampling was done:

Turnip roots and tops: 94, 201, 349 DAT;

Swiss chard leaves: 80, 188, 348 DAT;

Grain and straw: 145, 269, 412 DAT;

Wheat green material: 73, 178, 327 DAT;

Wheat hay: 111, 231, 377 DAT.

Leafy crops Swiss chards
Cereal (small grain) Spring wheat

Root crops

Leafy vegetables

Cereal (small grain)

Turnips

Swiss chards (leaves)

Wheat

Soil, 4 × 204 g/ha 30, 125, 366

[triazole‐3,5‐14C] prothioconazole (FAO, 2008a, 2008b; EFSA, 2014;Netherlands, 2021)

4.1 N onion/ shallot/ garlic GAP;

Crops of the 1st, 2nd and 3rd rotation were sown at day 30, 125 and 366, respectively.

Sampling was done:

Turnip roots and tops: 113, 195, 420 DAT;

Swiss chard leaves: 77, 169, 406 DAT;Swiss chard leaves: 77, 169, 406 DAT;

Grain and straw: 121, 209, 450 DAT;

Wheat green material: 62, 154, 388 DAT;

Wheat hay: 80, 171, 420 DAT.

Processed commodities (hydrolysis study) Conditions Stable? Comment/Source
Pasteurisation (20 min, 90°C, pH 4) yes Prothioconazole degrades to prothioconazole‐desthio under sterilisation process (≤ 11% AR). Prothioconazole‐desthio remains stable (99.4–99.9% of AR) (United Kingdom, 2018a)
Baking, brewing and boiling (60 min, 100°C, pH 5) yes
Sterilisation (20 min, 120°C, pH 6) yes
Pasteurisation (20 min, 90°C, pH 4) Yes Triazole‐UL‐14C labelled triazole alanine, triazole acetic acid, triazole lactic acid and 1,2,4‐Triazole; remain stable under sterilisation processes (96.4–100.5% of AR) (United Kingdom, 2018b).
Baking, brewing and boiling (60 min, 100°C, pH 5) Yes
Sterilisation (20 min, 120°C, pH 6) Yes