PBI-Gordon - Q4 Plus Turf Post-Emergent Herbicide
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PBI-Gordon - Q4 Plus Turf Post-Emergent Herbicide


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  • NOT FOR SALE TO: CA & NY
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MDA FeesSubject to MDA fees
  • Controls grassy weeds, as well as tough broadleaf weeds
  • For use on cool-season and warm-season turfgrasses
  • Post-emergent application
  • Wide window of application

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Get Post-Emergent Broadleaf Weed Control with Q4 Plus Turf Herbicide

Get effective control over grassy weeds in post-emergent applications with Q4 Plus Turf Herbicide. With rapid visual response and a one-week reseeding interval, Q4 herbicide label is the perfect weed-killing solution to take down crabgrass and yellow nutsedge.

Q4 Herbicide is an Effective, Rapid-Acting Solution from Gordon’s Line of Perform Products

Get to work on weeds that have already sprouted by using the effective post-emergent control that Q4 Plus Turf Herbicide offers.

By killing tough-to-tackle, pesky weeds once they have already emerged from the soil, you’ll ensure they do not grow back or threaten to spread to other areas of the lawn or turf with other plants and landscaping. Q4 herbicide label offers rapid visual response and has a one-week reseeding interval for most listed turf, including both cool- and warm-season turf. It is the perfect solution for combining powerful efficiency with maximum results to create a turf and landscaping herbicide you’ll definitely want to keep in your inventory.

Q4 Plus Turf Herbicide’s Active Ingredients
Q4 Plus uses four active ingredients: Quinclorac, Sulfentrazone, 2,4-D, and Dicamba.  This is a common yet highly effective combination of ingredients that quickly absorbs into plants through their roots and interferes with the plant’s growth hormones; thus, resulting in broadleaf weed death. The emulsification and mode of action of such ingredients provide excellent post-emergent control.

How to Use Q4 Plus Turf Herbicide
Q4 herbicide label works in a post-emergent application. It’s helpful to distinguish between post-emergent weed control and pre-emergent since they differ slightly in terms of their purpose; one designated for killing unwanted weeds before they sprout; the other to kill those that have already grown.

  • Pre-Emergent Herbicides- Pre-emergent weed control allows you to prevent weeds from sprouting and popping up from underneath the ground. Pre-emergent herbicides will kill weeds before the seed sprouts as temperatures begin to warm, usually in early spring.
  • Post-Emergent Herbicides- Post-emergent herbicides kill weeds that have already sprouted.  Because Q4 Plus herbicide acts as post-emergent weed control, it will ensure that pesky plants will not spread and invade the rest of your turfgrass. It’s best to use a post-emergent anytime between the spring and fall months. In Q4’s case, application between 50 degrees to 85 degrees is ideal.

Where to Use Q4 Plus Turf Herbicide
Because this selective herbicide only targets specific broadleaf weeds and nutsedge like crabgrass, yellow nutsedge, and clover, it will not kill or destroy the rest of your turfgrass or lawn. Check out the best applications site for Q4 herbicide formulation.

  • Residential sites
  • Golf courses (fairways and roughs)
  • Commercial areas
  • Recreation areas
  • Turfgrasses (Warm-Season and Cool-Season)
  • Sod farms
  • See label for a complete list

The unaffected areas of your cool- and warm-season turfgrasses will remain as beautiful as ever, making this a fantastic, effective, fast-acting product to add to your maintenance inventory.

Weeds Controlled with Q4 Plus Turf Herbicide
Q4 is the perfect single product option to take down both grassy and broadleaf weeds. It’s also highly selective on cool-season turfgrasses, meaning it will only attack the nuisance weeds and not interfere with the rest of your beautiful turf! Take a glimpse below of some of the weeds Q4 controls in post-emergent applications.

  • Crabgrass
  • Chickweed
  • Clover
  • Dandelion
  • Plantain
  • Wild Violet
  • See label for a complete list

You’ll not only get the fast-acting power of taking down some of the toughest broadleaf weeds, but you also get guaranteed suppression of young and actively growing yellow nutsedge. By killing and suppressing these weeds, even after they’ve sprouted, you can ensure they will return to spread to the rest of your turfgrass.

Discover More from PBI- Gordon

Since 1947, PBI-Gordon Corporation has aimed to deliver quality products with unwavering integrity. By providing products that offer performance and innovation to a vast clientele of customers, they’re able to appeal to the customer’s ever-growing needs, and they do it with dedicated service.

PBI-Gordon Corporation specializes in professional turf & ornamental care, consumer property care & animal products, and commercial sales. Professional turf and ornamental care is specially designed with turf and ornamental solutions that deliver performance and value that clients demand— it is in this sector that you will find effective, fast-acting herbicides just like Q4 Plus herbicide label and many more!

Shop More Herbicides at Reinders

Your turf and landscaping needs are covered with our large selection of herbicides from leading brands in the industry, like PBI-Gordon. Maybe you’re looking for other turf and landscaping chemicals, in which case, we’ve got you covered on all fronts.

You can determine your needs and make the best choice with Reinders’s selection of products from our panel of reputable vendors.

At Reinders, we pride ourselves on having the best selection of reliable products that help you thrive in your business and the unrivaled customer experience that goes along with it.

Our team of industry experts understands your daily challenges, and we are here to provide solutions to all of your needs. Quality products aren’t enough— you get the unparalleled customer service our second-to-none staff provides. 

Whether that starts with Q4 Plus Turf Herbicide or another one of our weeding-killing products, we’re here to help you take down weeds and keep your lawns healthy and thriving while saving you time, money, and energy.

For product recommendations, herbicide application tips, or to answer any other related inquiry, contact us today!