Roses |
5 g ai/hl |
Chrysanthemums |
10 g ai/hl |
Mallard duck |
LD50 1,979 mg/kg |
Quail |
LD50 881 mg/kg |
Rainbow trout [48 h] |
LC50 0.025 mg/L |
Carp [48 h] |
LC50 0.098 mg/L |
Bee [contact] |
LD50 29 μg/bee |
Fate in soil:
In laboratory aerobic soil studies, diflumetorim is metabolised slowly and has a half-life of 4.5 months. 33-51% of the applied parent was mineralised to carbon dioxide after 44 weeks. The major metabolite (<10% of applied radioactivity) was diflumetorim hydroxylated at the 2-position on the pyrimidyl ring. Diflumetorim has low potential for leaching to ground water (Koc = 572-1710 on 4 Japanese soils). In field dissipation studies in Japan, the product has a DT50 of 60-100 days.
Fate in aquatic systems:
Diflumetorim is stable to hydrolysis in water at pH 4 - 9. It is degraded photolytically in water with a DT50 of 151 hours in sterile water and 168 hours in river water.
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