	US 12,096,772 B2
	Herbicidal compositions
Marshall Mark Hay, Garden Plain, KS (US); and Mark John Kitt, High Point, NC (US)
Assigned to SYNGENTA CROP PROTECTION AG, Basel (CH)
Filed by SYNGENTA CROP PROTECTION AG, Basel (CH)
Filed on Feb. 4, 2022, as Appl. No. 17/665,059.
Prior Publication US 2023/0247996 A1, Aug. 10, 2023
Int. Cl. A01N 43/58 (2006.01); A01N 43/40 (2006.01); A01P 13/00 (2006.01)

CPC A01N 43/58 (2013.01) [A01N 43/40 (2013.01); A01P 13/00 (2021.08)]

18 Claims

1. A method of controlling unwanted plant growth, comprising: applying a herbicidally effective amount of a composition comprising (A) pyridafol, or agrochemically acceptable salts thereof, and (B) a HPPD-inhibitor herbicide, or agrochemically acceptable salts thereof to unwanted plants or to the locus thereof,

wherein the HPPD-inhibitor herbicide is bicyclopyrone;

wherein (A) and (B) are present in a synergistic weight ratio as defined by the Colby Formula at 14 days after application;

wherein the (A) pyridafol is applied at a rate of less than about 500 g/ha; and

wherein the HPPD-inhibitor herbicide is applied at a rate of less than about 50 g/ha wherein the unwanted plants are Amaranthus palmeri; wherein the weight ratio of (A) to (B) is about is from about 12:1 to about 1:4; and wherein the (A) pyridafol is applied at a rate of more than 25 g/ha; and (B) the HPPD-inhibitor is applied at a rate of more than 5 g/ha.