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How & When to Use Crabgrass Preventer

Learn how and when to use crabgrass preventer with Blain’s Farm & Fleet.

As the temperatures start to warm up, your lawn will start to wake up. With this comes the possibility of crabgrass. Crabgrass is a common weed that can invade your lawn. While it’s not harmful, it can be an eyesore in an otherwise luscious lawn. With the help of Blain’s Farm & Fleet, you can learn about using crabgrass preventer to protect your lawn.

When to Use Crabgrass Preventer

Crabgrass seed starts to germinate when the soil warms up. Initial emergence can happen when the soil gets to be about 55°F. The majority of seeds start to germinate when the soil reaches between 60 and 70°F. Depending on what type of climate you live in, this could be in early spring through mid-summer. Soil temperature can also be affected by wind, moisture, and the amount of shade your lawn receives. You’ll want to use the preventer before the seeds germinate. It should be applied when the soil reaches between 50 and 55°F. If it’s used too early, it can break down before the seeds start to germinate. The best time to apply crabgrass preventer is before it rains. The rain will wash the preventer off the grass blades into the soil and the crabgrass seed.

How to Apply Crabgrass Preventer

Crabgrass preventer is a pre-emergent herbicide. It must be used before the crabgrass seeds have sprouted. To apply the preventer, use a lawn spreader or garden seeder. Apply it uniformly across your lawn, making sure not to miss any spots. The Lawn and Garden Experts at Blain’s Farm & Fleet recommend using Scotts Turf Builder with Halts Crabgrass Preventer or Estate 24-0-12 Early Spring Crabgrass Preventer and Lawn Fertilizer. After you’ve applied the herbicide, you’ll need to water it–unless it rains. If you have a newly-seeded lawn, wait until you’ve mowed your lawn a few times before applying a herbicide. Otherwise, it can kill the grass seedlings.  Always follow the manufacturer’s instructions when applying a herbicide to your lawn.

If you do not apply the crabgrass preventer in time do not panic. Blain’s Farm & Fleet offers a wide range of crab-grass spray killers to treat this problem. Bayer Lawn Weed & Crabgrass Killer, Natria Grass & Weed Control, Roundup Weed and Grass Killer, and DuraZone Weed & Grass Killer are just a few crabgrass killers that are sold at Blain’s Farm & Fleet.

Maintaining a healthy lawn and using mulch can also combat lawn weeds. Read through our article for more tips on fighting off lawn weeds. At Blain’s Farm & Fleet, we understand that your lawn is your pride and joy. That’s why we carry all the lawn care supplies you need to keep your lawn looking lush and green. From fertilizers to lawn mowers, we have you covered. For more tips, visit our Lawn Care blog.


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