Primary crops (available studies) | Crop groups | Crop(s) | Application(s) | Sampling (DAT) |
---|---|---|---|---|
Fruit crops | Apples | Foliar, 375 g a.s./ha | 0, 14 | |
Tomatoes | Foliar, 0.25 kg/ha | 4, 7, 14, 21 | ||
Eggplants | Soil granules, 400 g/ha | 14, 35, 49, 67, 69 | ||
Root crops | Potatoes | Soil granules, 1250 g/ha | 129 | |
Foliar, 134 g/ha | 7, 28, 64 | |||
Leafy crops | Tobacco | 1 Soil and 3 foliar, 740 g/ha (total rate) | 14 | |
Cereals/grass crops | Rice | Soil granules, 500 g/ha | 79 | |
Seed (nursery box), 320 and 1260 g/ha with 200 box/ha | 65, 124 | |||
Maize | Seed, 721 g/100 kg seeds | 33, 61, 134 | ||
Pulses/oilseeds | Cotton | Seed, 460 g/100 kg seeds | 211 | |
Metabolism studies with [Pyridinyl‐14C‐methylene]‐imidacloprid only, considered acceptable Source: Germany (2005) |
Rotational crops (available studies) | Crop groups | Crop(s) | Application(s) | PBI (DAT) |
---|---|---|---|---|
Root/tuber crops | Red beet | Bare soil, 454 g a.s./ha | 30, 120, 271 | |
Leafy crops | Swiss chards | Bare soil, 454 g a.s./ha | 30, 120, 271 | |
Cereal (small grain) | Wheat | Bare soil, 454 g a.s./ha | 30, 120, 271 | |
Source: Germany (2005) |
Processed commodities (hydrolysis study) | Conditions | Investigated? |
---|---|---|
Pasteurisation (20 min, 90°C, pH 4) | Yes | |
Baking, brewing and boiling (60 min, 100°C, pH 5) | Yes | |
Sterilisation (20 min, 120°C, pH 6) | Yes | |
Source: Germany (2005) |
Can a general residue definition be proposed for primary crops? | Yes |
Rotational crop and primary crop metabolism similar? | Yes |
Residue pattern in processed commodities similar to residue pattern in raw commodities? | Yes |
Plant residue definition for monitoring (RD‐Mo) |
All plant commodities with exception of pulses and oilseeds: Imidacloprid Pulses and oilseeds: Imidacloprid (tentative, pending submission of trials supporting the import tolerances on dry beans, peanuts, beans and peas without pods) |
Plant residue definition for risk assessment (RD‐RA) | Sum of imidacloprid and its metabolites containing the 6‐chloropyridinyl moiety, expressed as imidacloprid |
Conversion factor (monitoring to risk assessment) | See Appendix B.1.2.1 |
Methods of analysis for monitoring of residues (analytical technique, crop groups, LOQs) |
High water content, high acid content, dry commodities:
High oil content commodities:
Hops:
Coffee beans (validated in cocoa beans):
According to the EURLs, during routine analyses an LOQ of 0.01 mg/kg is achievable in the four main matrices (EURLs, 2016) |
a.s.: active substance; DAT: days after treatment; PBI: plant‐back interval; QuEChERS: Quick, Easy, Cheap, Effective, Rugged, and Safe; HPLC–MS/MS: high‐performance liquid chromatography with tandem mass spectrometry; LOQ: limit of quantification; ILV: independent laboratory validation.