Ecotoxicology:
Bees:Contact
LC
50 20 μ g/bee.Birds:Acute oral
LD
50 for bobwhite quail and mallard ducks >2250 mg/kg.Daphnia:
LC
50 (3 h) for
D. pulex >10
mg/l.Fish:
LC
50 (96 h) for rainbow trout >18
mg/l.
Environmental fate:
Animals:After oral administration of
14C-diethofencarb to rats, 98.5-100 % of
14C was excreted within 7 days. The major metabolic routes in the rat were de-ethylation of the 4-ethoxy group, cleavage of the carbamate linkage, acetylation and Soil:Readily degraded in soil;
DT
50 <1-6 d under aerobic conditions; only very slightly degraded under anaerobic sterilised conditions.Plant:Readily degraded in plants.
WATER SOLUBILITY: 26.6 ppm at 25°C.