herbicide sulcotrione 96%TC 15%SL 15%SC 30%SC CAS No.:99105-77-8 CAS NO.99105-77-8

Biochemistry p-Hydroxyphenyl pyruvate dioxygenase inhibitor. Mode of action Herbicide, absorbed predominantly by the leaves, but also by the roots. Uses Control of broad-leaved weeds and grasses post-emergence in maize and sugar cane, at 200-300 g/ha. Formulation types SC. Selected tradenames: 'Galleon' (Syngenta, Bayer); 'Mikado' (Syngenta, Bayer)

Sulcotrione ECOTOXICOLOGY

Birds Dietary LC50 for bobwhite quail and mallard ducks >5620 mg/kg. Fish LC50 (96 h) for rainbow trout 227, mirror carp 240 mg/l. Daphnia LC50 (48 h) >200 mg/l. Algae EC50 (96 h) for Selenastrum capricornutum 1.2 mg/l. Bees Low toxicity to bees, both by topical and oral application; LD50 >200 mg/bee. Worms LC50 (14 d) >1000 mg/kg soil.

Sulcotrione ENVIRONMENTAL FATE

Animals Rapidly excreted in the urine, the major metabolite being 4-hydroxysulcotrione. Plants Deactivated by the formation of 2-chloro-4-methylsulfonylbenzoic acid. Soil/Environment Rapidly degraded in soil; lab. DT50 15-74 d; field DT50 1-11 d. The major metabolite is 2-chloro-4-methylsulfonylbenzoic acid. Koc 44 (high pH, sandy clay loam) to 940 (low pH sand). No adverse effects on soil micro-organisms.