Crabgrass and Barnyard grass is best treated by using a pre-emergent early in the spring before it germinates. Two treatments of crabgrass pre-emergent six to eight weeks apart give even better control. Once Crabgrass is established, it is very difficult to control. Fortunately, it will die off at the end of the season giving you another chance the following season to put pre-emergent down before it germinates.
Quackgrass, Orchard grass, and Bermuda grass cannot be selectively controlled. Ridding your lawn of these types of grass will require a complete kill and reseeding. Bermuda grass is an extremely aggressive grass that may take repeated kills over an entire season.
There are some products that can help reduce Bentgrass and Poa Annua but will require multiple and consistent treatments. Your local garden store can help. Always read and follow the label instructions.