Turf |
184-275 g ai/ha |
Flowers |
0.0075 g ai/litre |
Ecotoxicology:
Algae: EC50 for Selenastrum capricornutum 0.84 mg/l.Bees: LD50 (contact, 48 h) >100 μg/bee.Birds:Acute oral LD50 for quail and mallard ducks >2000 mg/kg. Dietary LC50 (5 d) for quail 560, mallard ducks 1800 mg/ kg diet.Daphnia: LC50 (48 h) 11.8 ppm.Fish: LC50 (96 h) for bluegill sunfish 17.2, rainbow trout 18.3 ppm.
Environmental fate:
Animals:In mammals, the skin forms a significant barrier to absorption. Following oral administration, excretion follows in the urine and faeces within 48 hours, and more than 30 metabolites have been identified. No accumulation potential.
Fate in soil:
The half-life of flurprimidol ranges from 119 - 187 days depending on soil type. The product is strongly adsorbed to soil particles. It is degraded chemically. Under laboratory conditions, the leaching potential of the compound was determined as low.
Fate in aquatic systems:
Flurprimidol undergoes photolysis in water. The half-life ranges from 1.4 days in outdoor conditions to 29 days in glasshouses.
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