COMPOSITE COMPOSITION FOR THE CONTROL OF UNWANTED VEGETATION PROCESS FOR THE CONTROL OF WEEDS IN AROZ FIELD

摘要

Compounds of the formula CHEM where X is Cl, F or Br; and R is CH3 or CH2CH3 exhibit potent selective herbicidal activity, especially against Echinochloa spp in paddy rice. The novel compounds may be made e.g. by condensing the appropriate 2-chloro-6-haloquinoxaline with an alkali metal salt of methoxy- or ethoxyethoxyethyl 2-(4-hydroxphenoxy) propanoate.