5-Aryl-4-isothiazolecarboxylic acids and derivatives
AssigneeMonsanto Company
InventorsRobert K. Howe, Len F. Lee
Life of this patent
Estimating the term…
Abstract
5-Aryl-4-isothiazolecarboxylic acids have been found to reduce herbicidal injury of rice plants due to the application of 2-chloro-2',6'-diethyl-N-(butoxymethyl)-acetanilide.
Claims9
A method of safening rice plants against the herbicidal action of butachlor herbicide which comprises treating the rice plant locus with an effective amount of a compound having the formula ##STR2## wherein X is hydrogen or chlorine, R is hydrogen, or agriculturally acceptable cations, Y is chlorine or CF.sub.3 and n is 0, 1 or 2.
A method for selectively controlling the growth of undesirable vegetation surrounding rice plants which comprises treating said rice plant locus with a herbicidally effective amount of butachlor herbicide, said rice plants having been safened against the phytotoxic effects of said herbicide by treatment of said rice plant locus with a compound having the formula ##STR3## wherein X is hydrogen or chlorine, R is hydrogen, or agriculturally acceptable cations, Y is chlorine or CF.sub.3 and n is 0, 1 or 2.
A herbicidal mixture comprising a herbicidally effective amount of butachlor herbicide and a safening effective amount of a safening agent having the formula:
- ##STR4## wherein X is hydrogen or chlorine, R is hydrogen lower alkyl or agriculturally acceptable cations, Y is chlorine or CF.sub.3 and n is 0, 1 or 2, said herbicide to safening agent ratio ranging from about 1:5 to 5:1.
Dependencies are inferred from the claim text.