If you are seeing some wider bladed grasses at this time of year, it is not crabgrass. Crabgrass is an annual grass. It dies in the fall and comes up from seed in the late spring. It usually is not visible until the end of June. So what you are seeing now is definitely not crabgrass.

Quack grass is another wide bladed grass. It, however, is a perennial grass and will be starting to grow this early. 

Crabgrass is normally treated with products that reduce its germination from seed. 
Because quack grass is already alive and growing, treating with something to reduce germination rarely benefits.

See the following articles on Quack Grass

http://www.turf-king.ca/gerry-s-blog/213-thick-bladed-grass

http://www.turf-king.ca/lawn-library/172-weed-grasses-quack-grass

above- an April photo of Quackgrass flourishing in a sunny spot. Regular bladed grass can be seen in the lower left of the photo.

Below- Quackgrass in among some Kentucky blue grass in a lawn with plenty winter damage.