METHOD OF CONTROLLING WEEDS IN WARM SEASON TURFGRASS
The present invention relates to a method for controlling dallisgrass or tropical signalgrass in warm-season turfgrass, comprising applying to the warm-season turfgrass or to the locus of the warm-season turfgrass an effective rate of pinoxaden.
1 . A method for controlling a weed selected from tropical signalgrass, tropical carpetgrass, large crabgrass, bahiagrass, torpedograss, bull paspalum and thin paspalum and dallisgrass in warm-season turfgrass, comprising applying to the warm-season turfgrass or to the locus of the warm-season turfgrass a herbicidally effective amount of a composition comprising pinoxaden.
2 . The method of claim 1 , wherein the warm season turfgrass is selected from the group consisting of bermudagrass, zoysiagrass and St. Augustine.
3 . The method of claim 1 , wherein the warm-season turfgrass is Zoysiagrass.
4 . The method of claim 1 , wherein the composition further comprises adjuvants, solvents, carrier, surfactants or extenders.
5 . The method according to claim 1 , wherein the composition comprises from 0.01 to 90% by weight of the pinoxaden, from 10 to 99.99% of a carrier and from 0 to 20% of a surfactant.
6 . The method of claim 1 , wherein pinoxaden is applied at the rate of from about 30 grams of pinoxaden per hectare to about 200 grams of pinoxaden per hectare.
7 . The method of claim 1 , wherein pinoxaden is applied at the rate of from about 70 grams of pinoxaden per hectare to about 165 grams of pinoxaden per hectare.
8 . The method of claim 1 , wherein dallisgrass is controlled.
9 . The method of claim 1 , wherein tropical signalgrass is controlled.
10 . The method of claim 1 , wherein tropical carpetgrass is controlled.
11 . The method of claim 1 , wherein torpedograss is controlled.
12 . The method of claim 1 , wherein Biahiagrass is controlled
13 . The method of claim 7 , wherein pinoxaden is applied between about two and 10 times, at intervals of from 14 to 60 days during the turf growing season.
14 . The method of claim 7 , wherein pinoxaden is applied between about two and 5 times, at intervals of from 28 to 42 days during the turf growing season.
15 . The method of claim 7 , wherein pinoxaden is applied between about two and 21 times, at intervals of from 7 to 21 days during the turf growing season.
16 . The method of claim 7 , wherein pinoxaden is applied between about two and 12 times, at intervals of from 10 to 18 days during the turf growing season.
17 . The method of claim 1 , wherein the safener cloquintocet-mexyl is applied simultaneously or sequentially with pinoxaden to the warm season turf grass.
18 . The method according to claim 1 , wherein the method further comprises applying an additional herbicide to the warm-season turfgrass or to the locus of the warm-season turfgrass.