	US 12,453,350 B2
	*Methods for the control of Poa annua* in warm season turfgrass using thiencarbazone-methyl**
Devon Carroll, Cary, NC (US); and Patrick Maxwell, Raleigh, NC (US)
Assigned to Discovery Purchaser Corporation, Wilmington, DE (US)
Filed by Discovery Purchaser Corporation, Wilmington, DE (US)
Filed on Sep. 27, 2024, as Appl. No. 18/900,318.
Application 18/900,318 is a continuation of application No. 18/587,616, filed on Feb. 26, 2024.
Prior Publication US 2025/0268262 A1, Aug. 28, 2025
Int. Cl. A01N 47/38 (2006.01); A01N 37/40 (2006.01); A01N 47/36 (2006.01); A01P 13/00 (2006.01)

CPC A01N 47/38 (2013.01) [A01N 37/40 (2013.01); A01N 47/36 (2013.01); A01P 13/00 (2021.08)]

20 Claims

1. A method for controlling Poa annua in a stand of warm season turf grass, the method comprising:

contacting a stand of warm season turf grass comprising Poa annua with an herbicidally effective amount of thiencarbazone-methyl, wherein the contacting occurs during an early post-emergence period for Poa annua,

wherein the early post-emergence period comprises the period of time beginning when new emergence of one or more Poa annua plants is first detected during the autumn or following the summer solstice and ending up to ten (10) weeks later, and

wherein the amount of thiencarbazone-methyl comprises from about 15 grams (g) thiencarbazone-methyl active ingredient (a.i.) to about 30 g a.i. per hectare of turf grass.