EPTC and chloridazone synergistic herbicide for sugar beet - i.e. S-ethyl N,N-di:propyl thio-carbamate and 5-amino 4-chloro 2-phenyl pyridazone-3 compsn.

摘要

Composition contains EPTC ( S-ethyl N,N-dipropylthiolcarbomate) (II) and chloridazone (5-amino-4-chloro-2phenyl-pyridaz-3-one of formula (I)) in a weight ratio of 0.3-2:1. Synergistic herbicidal composition used to treat beet (esp. sugar beet) crops. The composition is preferably applied immediately less than 10 days before prior to sowing at levels (total active cpds) of 1-10 Kg/ha, pref. 1.5-5Kg/ha. in the form of an aq. suspension.