Herbicide
AssigneePPG Industries, Inc.
InventorBlaine O. Pray
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Abstract
Herbicidally active alkyl N-phenylcarbamates are employed in combination with phenyl esters of N-alkylcarbamic acid or N,N-dialkylcarbamic acid. For example, a herbicidally active isopropyl N-phenylcarbamate is formulated in admixture with a phenyl N-methylcarbamate. The presence of the N-alkylcarbamate enhances the effectiveness of the N-phenylcarbamate as a herbicide by extending its soil persistence, increasing its herbicidal activity and/or altering its spectrum of practical herbicidal activity.
Claims7
A herbicidal composition containing as a herbicidal component isopropyl N-(3-chlorophenyl)carbamate in an amount sufficient to be herbicidally effective when applied to the soil, and further containing an amount of 4-chlorophenyl N-methylcarbamate sufficient to extend the soil life of said isopropyl N-(3-chlorophenyl)carbamate.
A herbicidal composition containing as a herbicidal component isopropyl N-phenylcarbamate in an amount sufficient to be herbicidally effective when applied to the soil, and further containing an amount of 4-chlorophenyl N-methylcarbamate sufficient to extend the soil life of said isopropyl N-phenylcarbamate.
A method of controlling weeds comprising applying to the area in which weeds are living both a herbicidal amount of a compound selected from the group consisting of isopropyl N-(3-chlorophenyl)carbamate and isopropyl N-phenylcarbamate and an amount of 4-chlorophenyl N-methylcarbamate sufficient to extend the soil life of said compound.
Dependencies are inferred from the claim text.