Table 1.
Leaching properties of various systemic insecticides (PPDB 2012)
| Insecticide | Solubility in water at 20 °C at pH 7 (mg/L) | GUS leaching potential index | Aqueous photolysis DT50 (days) at pH 7 | Water-sediment DT50 (days) |
|---|---|---|---|---|
| Acetamiprid | 2,950 (high) | 0.94 (very low) | 34 (stable) | – |
| Clothianidin | 340 (moderate) | 4.91 (very high) | 0.1 (fast)–Stablea | 56.4 (moderately fast) |
| Dinotefuran | 39,830 (high) | 4.95 (very high) | 0.2 (fast) | – |
| Fipronil | 3.78 (low) | 2.45 (moderate) | 0.33 (fast) | 68 (moderately fast) |
| Imidacloprid | 610 (high) | 3.76 (high) | 0.2 (fast) | 129 (slow) |
| Nitenpyram | 590,000 (high) | 2.01 (moderate) | – | – |
| Thiacloprid | 184 (moderate) | 1.44 (low) | Stable | 28 (fast) |
| Thiamethoxam | 4,100 (high) | 3.82 (high) | 2.7 (moderately fast) | 40 (moderately fast) |
aUSEPA (2010)