Table 7.
Accepted options to refine the long‐term risk to granivorous birds for the representative uses of ipconazole in barley and wheat
| Focal species | Refinement | |||
|---|---|---|---|---|
| fTWA( a ) | PD (cereal grains) | PT | Dehusking behaviour | |
| Chaffinch |
– 0.46 (7‐day averaging time) – 0.36 (10‐day averaging time) |
– Spring: 0.587 – Winter: 0.32 |
– Spring: 0.63 – Winter: 0.22 |
– Yes (qualitatively) |
| Skylark |
– Spring: 0.58 – Winter: 0.74 |
– Spring: 0.86 – Winter: 1 |
– Not proposed | |
| Woodpigeon | – Not needed | – Not needed | – Not proposed | |
| Yellowhammer |
– Spring: 0.91 – Winter: 0.93 |
– Spring: 0.20 – Winter: 0.35 |
– Yes (qualitatively) | |
| Further refinement(s) | ||||
| – Drilling loss factor (0.95) | ||||
PD: Proportion of the diet obtained from treated area; PT: Proportion of time spent in the treated field; TWA: time‐weighted average.
PT and PD were refined separately. The estimated area that needs to be foraged to reach the lethal dose has only been considered as supportive to refine the risk since there are not foraging area values agreed at EU level.
Based on a geomean DT50 of 2.67 days estimated from residue decline trials in Northern (three trials) and Southern Europe (five trials).