Wednesday, June 30, 2010
# weed control Crabgrass is up and affecting lawns. Lighter green foliage that does not blend well with the darker greens of desirable lawn grasses is one reason people feel crabgrass is a weed. Here we see crabgrass sprouting in a lawn.
Crabgrass likes warm soil. Most often it is found along the edges of the lawn -especially where the grass abuts concrete or asphalt walks or driveways. The hard surfaces hold the heat and transfer the warmth to the soil nearby. Coupled with the fact that the lawn tends to be weaker at the edges, makes these spots ideal for crabgrass to grow.
To reduce the risk of crabgrass, do protect your lawn from pests. Then do those things to keep your lawn healthy and dense- regular quality fertilizations, overseeding as needed. Also proper mowing and watering. For crabgrass, a mowing height of 3" is important. The longer grass blades will shade the soil and keep it cooler. This will favour desirable turfgrasses and discourage crabgrass.