Table 2
Available metabolism studies
| Primary crops | Crop groups | Crop(s) | Application(s) | Sampling (DAT) | Comment/Source |
|---|---|---|---|---|---|
| Fruit crops | Apple | Foliar appl., 3 × 450 g a.s./ha | 14 | [cyclopropyl‐1‐14C]‐ and [benzyl‐14C]‐Fenpropathrin (FAO, 2014) | |
| Tomato | Indoor, foliar appl., 4 × 224 g a.s./ha | 19 | [cyclopropyl‐1‐14C]‐ and [benzyl‐14C]‐Fenpropathrin (FAO, 2014) | ||
| Indoor, foliar appl., 4 × 224 g a.s./ha | 3 | [cyclopropyl‐1‐14C]‐ and [phenoxyphenyl‐14C]‐Fenpropathrin (FAO, 2014) | |||
| Root crops | – | – | – | – | |
| Leafy crops | Cabbage | Indoor, direct appl. on leaves, equivalent to 90 g a.s./ha | 0, 3, 7, 14, 21, 28, 35 and 42 | [cyano‐14C]‐, cyclopropyl‐1‐14C]‐ and [phenoxyphenyl‐14C]‐Fenpropathrin (FAO, 2014) | |
| Cereals/grass | – | – | – | – | |
| Pulses/oilseeds | Bean | Indoor, foliar appl., 3 × 224 g a.s./ha | 15 | [cyclopropyl‐1‐14C]‐ and [benzyl‐14C]‐Fenpropathrin (FAO, 2014) | |
| Cotton | Indoor, direct appl. with a syringe, 4 appl. For a total rate of 4.7–4.8 mg 14C‐fenpropathrin | 66, 111 | cyclopropyl‐1‐14C]‐ and [phenoxyphenyl‐14C]‐Fenpropathrin (FAO, 2014) | ||
| Outdoor, soil appl, 500 g a.s./ha | Not reported | cyclopropyl‐1‐14C]‐ and [phenoxyphenyl‐14C]‐Fenpropathrin (FAO, 2014) | |||
| Outdoor, foliar appl., 4 × 336 g a.s./ha | 21 | cyclopropyl‐1‐14C]‐ and [phenoxyphenyl‐14C]‐Fenpropathrin (FAO, 2014) | |||
| Livestock | Animal | Dose | Duration (day) | Comment/Source | |
| Laying hen | 0.5 or 5 mg/kg bw/day | 10 | [cyclopropyl‐1‐14C]‐ or [benzyl‐14C]‐Fenpropathrin (FAO, 2014) | ||
| Ruminant, lactating goat | 50 ppm in the diet | 5 | cyclopropyl‐1‐14C]‐ or [phenoxyphenyl‐14C]‐Fenpropathrin (FAO, 2014) | ||
| Ruminant, lactating cow | 110 ppm in the diet | 21 | [benzyl‐14C]‐Fenpropathrin (FAO, 1993) | ||
| Pigs | – | – | Study not required (a) | ||
a.s.: active substance; DAT: days after treatment; bw: body weight; ppm: party per million.
(a)The metabolism and residue levels in pig commodities were not discussed in the JMPR reports, but MRLs were recommended for all mammals other than marine mammals (FAO, 2014), thus it is assumed that the metabolism in rats and ruminants is similar.