re: Lawn Burweed in grass

I typically don't pre-m with burweed in mind. Crabgrass is my main target, but I used Prodiamine under the trade name Kade 65. I believe what you linked uses the chemical Dithiopyr, or Dimension, also a good broad spectrum pre-m, and it also has some post emergence control or suppression on some weeds.

ETA: It's a good idea to use different pre-m chemicals every couple of years.