Staying ahead of the weeds
Staying ahead of the weeds doesn't have to be a daunting task. It can be fun and exciting while a learning experience as well. First off is to know what type of grass you have. If you live in our working area Montgomery, Wetumpka, Millbrook or Prattville Alabama you pretty much have four grasses to chose from. Bermuda the most common, Zoysia, Centipede or St. Augustine. DO a search for these grasses and find out which one you have. Once you have determined your grass type you can now determine what chemicals you can and can't use.
Pre emergents are herbicides that are applied before the weeds start germinating. Generally these chemicals are applied in the spiring, fall and winter. Post emergents are herbicides that kill the weeds that have already germinated. They are applied as needed for the specific weed or weeds. You have selective herbicides that target a specific weed and Non selective herbicides like Round-Up that kills anything it touches. You can also apply A pre and post emergent at the same time.
Granular vs Liquid? I prefer liquid because I generally run a pre and post emergent at the same time. I also have the capability to apply enough liquid per square foot. If you only have a spreader then that would be the best way to go. Both need to get watered in. A liquid is probally going to get to work faster but the granular may give you a longer lasting control. Hope this helps.