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Application:
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83164-33-4
diflufenican
C19H11F5N2O2
83164-33-4
China (Mainland)
Powder
98%
Herbicide
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Applications
Diflufenican Mode
of action Selective contact and residual herbicide, absorbed
principally by the shoots of germinating seedlings, with limited
translocation. Diflufenican Uses
Applied at 125-250 g/ha pre- or early post-emergence in autumn-sown
wheat and barley, to control grass and broad-leaved weeds, particularly
Galium, Veronica and Viola spp. Normally used in combination with
isoproturon or other cereal herbicides. Phytotoxicity Any slight
phytotoxicity is in the form of small transient patches on basal leaves,
with no adverse effect on crop development. Diflufenican Formulation types SC; WP. Diflufenican
Toxicology
Oral
Acute oral LD50 for rats >2000, mice >1000, rabbits >5000
mg/kg. Skin and eye Acute percutaneous LD50 for rats >2000 mg/kg.
Non-irritating to skin and eyes (rabbits). Inhalation LC50 (4 h) for
rats >2.34 mg/l air. NOEL In 14 d sub-acute trials in rats, no
adverse effect observed at 1600 mg/kg b.w. In 90 d feeding trials, NOEL
for dogs was 1000 mg/kg b.w. daily, for rats 500 ppm diet. Other
Non-mutagenic in the Ames test. Toxicity class WHO (a.i.) U EC
classification R52, R53