Methods and compositions for controlling weed infestation and improving grass quality
View Patent ↗Methods for controlling unwanted vegetation, such as weeds, to turfgrass by applying an active compound combination including a triazolinone herbicide, for example, sulfonylamino-carbonyl-triazolinone, and at least one sulfonylurea herbicides, to turfgrass is described herein. The disclosure also provides for active compound combinations and methods of improving turfgrass quality.
1. An active compound combination to control weeds in turfgrass comprising:
about 5% to 15% by weight of thiencarbazone-methyl,
about 15% to 25% by weight of foramsulfuron, and
about 25% to 35% by weight of halosulfuron-methyl.
2. A turf grass having applied thereon an active compound combination according to claim 1 .
3. A seed having applied thereon an active compound combination according to claim 1 .
4. An active compound combination according to claim 1 , which act synergistically.
5. An active compound combination according to claim 1 , wherein thiencarbazone-methyl, foramsulfuron, and halosulfuron-methyl are the only active compounds in the combination.
6. An active compound combination according to claim 1 , comprising about 9.9% by weight of thiencarbazone-methyl, about 19.8% by weight of foramsulfuron, and 30.8% by weight of halosulfuron-methyl.
7. A method of controlling weeds in turfgrass comprising applying an effective amount of a combination according to claim 1 to the weeds at a time which is post-emergence of said weeds.
8. The method according to claim 7 , wherein the thiencarbazone-methyl, foramsulfuron, and halosulfuron-methyl are applied at a ratio of about 0.5 to 50:0.5 to 15 of (i) thiencarbazone-methyl to (ii) foramsulfuron and halosulfuron-methyl.
9. The method according to claim 7 , wherein the thiencarbazone-methyl, foramsulfuron, and halosulfuron-methyl are applied to said weeds at a rate of about 0.605 to 1.936 oz active ingredient/A, with a seasonal maximum rate of about 3.872 oz active ingredient/A.
10. The method according to claim 7 , wherein the thiencarbazone-methyl, foramsulfuron, and halosulfuron-methyl are applied at a ratio of about 0.1 to 10:0.1 to 10:0.1 to 20.
11. The method according to claim 7 , wherein thiencarbazone-methyl, foramsulfuron, and halosulfuron-methyl are applied a ratio of about 1:2:3.
12. The method according to claim 7 , wherein the weeds are selected from the group consisting of dallisgrass, sedges, kyllingas, bull paspalum , vaseygrass, Alexandergrass, tropical signalgrass, tall fescue, and crabgrass.
13. The method according to claim 7 , wherein the turfgrass is warm season turfgrass.
14. The method according to claim 13 , wherein the turfgrass is bermudagrass or zoysiagrass.
15. The method according to claim 7 , wherein the weeds are controlled for at least one subsequent turf growing season.
16. The method according to claim 7 , wherein a synergistic effect is observed against the weeds.
17. The method according to claim 7 , wherein the thiencarbazone-methyl, foramsulfuron, and halosulfuron-methyl are in water-dispersible granule form.
18. The method according to claim 7 , wherein the thiencarbazone-methyl, foramsulfuron, and halosulfuron-methyl are applied together or sequentially.
19. The method according to claim 7 , wherein the thiencarbazone-methyl, foramsulfuron, and halosulfuron-methyl are applied to the weeds by spraying.