Characteristics: Thrives in moist soil and cool weather and dies in dry hot weather. Forms dense bright green patches. Each plant produces apprx. 100 seeds. There are actually 2 types of Bluegrass one being a true annual and the other a perennial. It is difficult to differentiate between the two.
• Cultural: reduce soil compaction through core aeration except during time of seed germination. Water infrequently and deep. Mow higher and more frequently, so that your lawn will choke it out.
• Natural: DO NOT scalp your lawn in the spring. If seeds cannot contact the ground nor get sun light they will not geminate.Apply corn gluten meal as a pre-emergent. Corn gluten meal is also 10% slow release nitrogen. It is and organic weed and feed. Difficult to find and expensive. Works great in nice established yards but I would not recommend as a single solution for a lawn overrun with weeds.
• Chemical: apply pre-emergent in the fall before weed seeds germinate. Post emergent generally do not work