by Karen Lawson
HomeOwnerNet Columnist
Crabgrass can detract from the appearance of a lawn, while stealing nutrients and displacing turf grass. You can control crabgrass and other invasive plants through consistent lawn maintenance and pest-management techniques.
Seasonal Lawn Maintenance Helps Control Invasive Plants
Healthy grass can resist crabgrass by growing a dense network of roots below ground, and thick groundcover above. The following are some suggestions for annual lawn care in addition to watering and mowing:
- Core aeration: This provides air flow to the soil and root structure, which can prevent problems associated with water accumulation. Aeration helps your lawn produce dense roots and groundcover. Weeds and crabgrass are less likely to grow within a lush cover of grass, and a well-developed root network enhances absorption of water and nutrients.
- Overseeding: Spreading grass seed during spring can improve density and help prevent invasive weeds and crabgrass from taking over lawns.
- Soil testing: A soil test can help verify that your lawn is getting enough nutrients, and detect soil problems such as a pH imbalance. Weeds and crabgrass are opportunistic - they’ll take advantage of a lawn weakened by improper cultivation. Soil testing can also provide information for changing your lawn-care procedures if necessary. Contact a lawn and garden center or nursery for testing supplies and further information.
- Herbicides: Pre-emergent herbicides prevent weed germination and should be applied by late March since crabgrass germinates in spring. It prefers full sun and can tolerate droughts, so don't let it gain ground as the days get warmer. As with any toxic chemical, it's important to follow the manufacturer's directions carefully.
Preventing problems with regular lawn care can go a long way in maintaining a healthy and attractive lawn.
About the Author
Karen Lawson is a freelance writer who enjoys writing about nature and the environment. She holds BA and MA degrees in English from the University of Nevada, Reno.
