SOLID HERBICIDAL COMPOSITIONS CONTAINING A SAFENER
Solid herbicidal compositions in the form of granules that contain a first herbicide active ingredient, florasulam, and cloquintocet acid are provided. These solid herbicidal compositions have excellent storage stability, are produced in a simple and efficient manner, and readily wet, disperse, and form a stable suspension in cold water.
1 . A solid herbicidal composition comprising:
a) from about 50 grams active ingredient per kilogram (g ai/kg) to about 600 g ai/kg, with respect to the total composition, of a first herbicide active ingredient selected from a group consisting of ALS enzyme inhibitor herbicides and the compounds of the Formula
wherein
Ar represents a phenyl group substituted with one to four substituents independently selected from the group consisting of halogen, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkoxyalkyl, C 2 -C 6 alkylcarbonyl, C 1 -C 6 alkylthio, C 1 -C 6 haloalkyl, C 1 -C 6 haloalkoxy, C 2 -C 4 haloalkoxyalkyl, C 2 -C 6 haloalkylcarbonyl, C 1 -C 6 haloalkylthio, —OCH 2 CH 2 —, —OCH 2 CH 2 CH 2 —,
—OCH 2 O—, and —OCH 2 CH 2 O—;
R represents H or F;
X represents Cl or vinyl;
Y represents Cl, vinyl or methoxy; and
salts and esters thereof;
b) from about 50 grams active ingredient per kilogram (g ai/kg) to about 600 g ai/kg, with respect to the total composition, of florasulam;
c) from about 50 g ai/kg to about 600 g ai/kg, with respect to the total composition, of cloquintocet acid;
d) from about 30 g ai/kg to about 250 g ai/kg, with respect to the total composition, of a lignosulfonate salt;
e) from about 10 g/kg to about 100 g/kg, with respect to the total composition, of an anionic surfactant; and
f) from about 50 g/kg to about 250 g/kg, with respect to the total composition, of a solid buffer.
2 . The solid herbicidal composition of claim 1 , wherein the solid herbicidal composition is an extruded granule.
3 . The solid herbicidal composition of claim 1 or 2 , further comprising a disintegrant.
4 . The solid herbicidal composition of claim 3 , wherein the disintegrant is a urea-formaldehyde co-polymer.
5 . The solid herbicidal composition of any of claims 1 - 4 , wherein the solid buffer is ammonium sulfate or citric acid.
6 . The solid herbicidal composition of any of claims 1 - 5 , wherein the first herbicide active ingredient is halauxifen-methyl.
7 . A method for preparing a solid herbicidal composition comprising:
a) providing and combining together the dry ingredients described in any of claims 1 - 6 and air milling them;
b) adding water to the air milled, dry ingredients;
c) mixing the air milled, dry ingredients and water to form an extrudant;
d) extruding the extrudant to provide extruded granules; and
e) drying the extruded granules.