Its official (in my opinion); I spotted crabgrass today. Michigan. Tiny, only a quarter of an inch tall, or wide. Last year this lawn was a heavily crabgrass infested area. Sunny, sandy. Temps hit about 85 last week. It sprouted about the time of the second mowing (of cool season grass). Dandelion bloom, cherry and forsythia bloom. We have now accumulated 150 Growing Degree Days (Base 50). How far along is your area? How big is your crabgrass? What is the number of mowings so far? What growing degree days have you accumulated for the season? Highest temp so far? Any frosts recently? Bermuda coming out of dormancy?