Nothing is as bad as having pre-emergent weed control applied only to see that your lawn technician missed a big spot.

To remedy that problem, College Fund Landscaping puts blue dye in our pre-emergent weed control as living proof that every square inch of your lawn has an even application of pre-emergent weed control.

You may wonder why reaching every square inch of your lawn is essential with pre-emergent weed control.

We at College Fund Landscaping know that grassy weeds are persistent and stubborn to get rid of. Once grassy weeds pop up through the soil, they’re reproducing and will soon cover your lawn.

The blue dye shows our technicians that they covered the entire yard.

In this blog post, you’ll learn …

  • What the blue dye is, and how it affects your lawn
  • Why your North Dallas lawn needs a complete pre-emergent application throughout the entire yard
  • Why must you water your lawn after our technicians apply the blue dye pre-emergent weed control.

Understanding Blue Dye: What It Is and Its Effects on Your Lawn

To ease your mind, the blue dye that we use in our pre-emergent weed control applications won’t affect the efficacy of the weed control.

Instead, it’s just an FDA-compliant blue dye that’s water-soluble. We use it to ensure our technicians thoroughly apply weed control to your Richardson or Sachse lawn.

Read more: Why Are Lawns Turning Blue in North Texas?

Also, the blue dye isn’t poisonous to people or pets. While you may not want your kids and pets to run through the blue dye because it will stain clothes and carpets, it won’t pose any serious risks to your tribe.

The blue dye won’t harm the soil or its ecosystem either. It’s perfectly safe and environmentally friendly.

The blue dye will stain fences, driveways, and other hard surfaces. But don’t worry. The blue dye will disappear within two weeks of application and won’t harm your hardscapes.

You also get two other benefits from the blue dye—it reminds you to water your lawn deeply to activate the pre-emergent weed control, and it also contains post-emergent weed control to destroy any weeds that have already popped up.

The Necessity of Full Pre-Emergent Weed Control Coverage

Pre-emergent weed control successfully keeps grassy weeds, like Poa Annua (bluegrass) and its cousins, from emerging from the ground because it forms a barrier in the soil that blocks seedlings. The pre-emergence application is the only way to keep winter annual weeds from erupting from the soil.

What happens if you don’t get pre-emergent weed control down to prevent winter grassy weeds?

According to AgriLife Today, once grassy weed seeds germinate, there is nothing you can do to keep them from growing and multiplying. The article also states that the only way to prevent grassy weeds is to put down pre-emergent weed control at the right time and three times per season.

At College Fund Landscaping, our pre-emergent weed control program starts in the fall and goes through March.

Our full weed control program includes fertilization plus pre- and post-emergent weed control applications.

You’ll receive your first pre-emergent weed control application in the fall. Then, in January, you’ll receive two pre-emergent weed control applications a few weeks apart from each other.

Why do we apply pre-emergent weed control three times between October and March? Because the pre-emergent’s effectiveness lasts a short time, and weed seeds are very aggressive.

Learn more: Pre-Emergent Treatments: What They Are and How They Can Benefit Your Lawn

To keep weeds off of your Plano yard, we must apply pre-emergent weed control in a series to ensure that no weeds have a chance to appear and multiply.

Your Turn: The Importance of Thoroughly Watering Your Lawn After Treatment

The AgriLife article also says that you must water your lawn thoroughly after treatment applications to ensure the treatment goes down into the top soil layer where the weed seeds germinate.

You need ½” of water to get the pre-emergent to percolate down to the top soil layer. The blue dye we use in the pre-emergent weed control reminds you that your entire lawn needs that ½” of irrigation.

If you choose not to water your lawn after our pre-emergent weed control application, then the weeds will be able to emerge and populate your Allen or Frisco lawn.

By spring, your McKinney lawn will have so many weeds that you may need to rehabilitate your turfgrass, which will be costly and time-consuming.

Summing Up: The Benefits of Blue Dye in Weed Control

To recap, we use blue dye in our pre-emergent so our technicians know they covered every square inch of turfgrass in your yard. It can also remind you to turn on your water sprinklers so all treated turfgrass gets ½” of water to activate the weed control.

You won’t need to turn on your sprinkler system if you get ½” of rain after your pre-emergent weed control application.

You can rest assured that the blue dye won’t permanently stain your hardscapes or harm those you love. Instead, it’s a harmless tool to ensure even application.

Call College Fund Landscaping Today To Schedule Your Pre-Emergent Weed Control

If you don’t mind a blue lawn this winter, contact us at College Fund Landscaping to get your pre-emergent weed control applications in January.

Don’t be left out in the cold. Call us at 972-985-0279 or fill out our contact form.

College Fund Landscaping serves these North Texas cities: Allen, Frisco, McKinney, Murphy, North Dallas, Plano, Richardson, Sachse, and Wylie.

Source:, Now Is the Time for Winter Weed Control in Home Lawns.