Here are some best practices for killing crabgrass:
- Identify the crabgrass: Before you start any treatment, you need to make sure that you are dealing with crabgrass. Crabgrass is an annual grass weed with long, spiky leaves and a spreading growth habit. It typically emerges in the late spring or early summer.
- Apply pre-emergent herbicides: Pre-emergent herbicides are effective in preventing crabgrass before it germinates. Apply the herbicide before the soil temperature reaches 55-60°F, which is when crabgrass begins to germinate.
- Pull out small patches: If you only have a few small patches of crabgrass, you can manually remove them by pulling them out by hand. Be sure to remove the entire root system to prevent regrowth.
- Apply post-emergent herbicides: If you have a larger infestation of crabgrass, you may need to use a post-emergent herbicide. These herbicides kill the crabgrass after it has already emerged. Make sure to follow the instructions carefully when applying the herbicide, as some formulations can damage or kill other plants in the area including desirable lawn grasses.
- Improve soil health: Maintaining healthy soil can help prevent crabgrass from taking over your lawn. Aerate your lawn regularly to improve soil structure and promote healthy root growth. Fertilize your lawn with a balanced fertilizer to promote overall plant health.
- Monitor regularly: Keep an eye on your lawn and monitor for any signs of crabgrass. If you spot any new growth, take action quickly to prevent it from spreading.