|what do i need to do to kill grass burs. my yard is covered with them along with|
|A corn gluten based pre emergent will help keep new grassburs and other weed seeds from sprouting, so it's a start!
To control this weed in St. Augustine grass and in bermuda grass lawns (that have not been overseeded with a cool-season grass), several herbicides are recommended. Labeled herbicides and rates for control include: Atrazine : 1.5 oz. / gal. water per 1000 sq. ft. Weed B Gone: 3 oz. / gal water per 1000sq. ft. Ferti Lome Weed Free Zone: 1.5 oz./ gal. water per 1000 sq. ft. 2,4D: 1.5 oz./gal. water per 1000 sq ft. Bayer Advanced Southern Weed killer: 2 oz. /gal. water per 1000 sq ft. Trimec: 2 oz. /gal. water per 1000 sq. ft. Spectracide Weedstop 2: 2oz./gal. water per 1000 sq. ft. Two applications are usually necessary; make the second application about 10 days after the first. The ideal time to apply is from December to February, preferably on days with temperatures of 60 degrees F or higher. The earlier in the season you apply, the easier this weed is to control. Always be cautious with these herbicides, even at these low rates. Do not apply around the dripline of trees, and do not use in flowerbeds. As temperatures rise and other plants are coming out of dormancy, be aware of and prevent drift of spray to off-target plants, and be especially cautious around vegetable gardens and fruit trees.
Good luck with your eradication project!