Ecotoxicology:
Bees:
50 (topical) 0.29
mg/g.Birds:Acute oral
50 for hens 92
/
.Daphnia:
50 (3 h) >10
/l.Fish:
50 (48 h) for carp 0.65
/l.
Environmental fate:
Animals:In rats, benfuracarb is metabolised rapidly and almost completely excreted in the urine and faeces within 7 days. Major metabolites in the faeces are carbofuran, carbofuran phenol, 3-hydroxycarbofuran, 3-hydroxyphenol, and 3-ketophenol. Urinary metaboliteSoil:
50 in soil is
c. 4-28 h. Under upland conditions, benfuracarb is decomposed to carbofuran, while under flooded conditions, carbofuran phenol is also found as a major degradation product.Plant:In plants,
N-S bond cleavage occurs as the initial step, giving rise to carbofuran, which is subsequently metabolised to 3-hydroxycarbofuran. The principal hydrolytic products are carbofuran phenol and 3-hydroxy- and 3-ketophenol, all present in