Table 2.
Emamectin benzoate content (µg active ingredient/kg fresh wt) in compost piles
| Date | DOC | Pile 1a |
Pile 2a |
Pile 3b |
Control pilec |
||||
|---|---|---|---|---|---|---|---|---|---|
| μg/kg | μg/kg | μg/kg | μg/kg | ||||||
| 14 November 2012 | 0 | 2758 | 100% | 1809 | 100% | 5643 | 100% | <LOQd | |
| 12 December 2012 | 28 | 1006 | 36% | 727 | 40% | 1497 | 27% | <LOQ | |
| 06 March 2013 | 112 | 541 | 20% | 303 | 17% | 512 | 9% | <LOQ | |
| 12 June 2013 | 210 | 415 | 15% | 261 | 14% | 366 | 6% | <LOQ | |
| 10 September 2013 | 300 | 310 | 11% | 180 | 10% | 367 | 7% | <LOQ | |
a
Without fresh compost.
b
Control pile with horse chestnut leaves of untreated trees.
c
Limit of quantitation (LOQ) 10 μg/kg.
d
Limit of quantitation (LOQ) 10 µg/kg
DOC = days of composting.