Patent ID: 11910795
Assignee: SUNCOR ENERGY INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC A | IPC A

Claim 17:
18. A method for selectively controlling broadleaf weeds on a turfgrass, which comprises applying, in combination:
(1) one or more natural indole auxins, or an agriculturally suitable salt thereof, wherein the one or more natural indole auxins are selected from the group consisting of: indole-3-acetic acid or an agriculturally suitable salt thereof, indole-3-butyric acid or an agriculturally suitable salt thereof, and indole-3-propionic acid or an agriculturally suitable salt thereof;
(2) one or more chelating agents comprising an aminopolycarboxylic acid or an agriculturally suitable salt thereof; and
(3) one or more emulsifiers;
to the broadleaf weeds and to the turfgrass, and/or to a growing medium that is in proximity to a base and root system of the broadleaf weeds and the turfgrass;
wherein (1) is present in an amount of about 0.5 to about 5% by weight of the composition;
wherein the weight ratio of (1):(2) is from 1:1 to 1:5; and
wherein the combination is selectively toxic to broadleaf weeds and less toxic to turf grasses.