Our pre-emergent herbicide program for crabgrass on bunker faces has been a success. While nothing is 100% we are very happy with the results we've seen. This week we will be applying a post-emergent herbicide to a weed called nutsedge on bunker faces which can be seen in this photo.
This past week we applied nitrogen and a plant growth regulator called Primo MAXX to all bunker faces. On the areas that are straight kentucky bluegrass with no ryegrass or fescue blended in the Primo Maxx has given it an off-color. This is normal and will quickly grow out of it.
While not a panacea, Primo MAXX has many good benefits as shown in this pdf file: Primo MAXX Benefits