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ENVU (FORMERLY BAYER)

Proxy Growth Regulator

Proxy Growth Regulator is an effective plant growth regulator that suppresses seedheads in poa annua and controls the growth of cool-season grasses, helping to maintain a more uniform and manageable turf.

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Proxy Growth Regulator Product Page
Min : 129.87 - Max : 129.87
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Price as of
11/04/25
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Proxy Growth Regulator, manufactured by Envu, effectively suppresses seedheads in Poa annua (annual bluegrass), helping to improve the appearance and health of turfgrass. It also limits the growth of labeled cool-season grasses, making it ideal for reducing excess growth and maintaining a more uniform and aesthetically pleasing lawn or turf area.

It contains ethephon 21.7%, which regulates turf growth on desirable grasses, suppresses seedhead formation of Poa annua and white clover, helps form a tighter turf canopy, and reduces the mowing frequency. Proxy Growth Regulator unique formulation avoids initial shock or post-application flush, and has a lower risk of phytotoxicity compared to other PGRs.

Proxy Growth Regulator is an efficient and effective plant growth regulator that boosts cool-seasoned turf density and usability. This results in a denser, tighter-knit canopy, which is more resilient to traffic, visually uniform, and less susceptible to stress. You don’t have to worry about an afternoon shower washing away your investment. Proxy becomes rainfast in just 2 hours, locking in its effectiveness even in unpredictable weather.

Tools Needed

A backpack sprayer, handheld pump sprayer, or hose-end sprayer can be used. 

How to Use

  • Step 1: Determine how much Proxy Growth Regulator to use by measuring the square footage of the treatment area. Find the square footage by measuring the treatment area's length and width in feet, then multiply them together (length X width = square footage). Apply 5 fl. oz. of Proxy Growth Regulator per 1 to 2 gallons of water per 1,000 sq. ft. Do not exceed a maximum of 30 fl. oz. of product per 1,000 sq. ft. per year. 
  • Step 2: Fill the sprayer tank with half the amount of water, add the proper amount of product, then pour in the remaining half of the water. Close the tank lid and shake until the solution is well-mixed. Mix only the amount of spray you expect to use each day. Do not allow mixed solution to stand overnight.
  • Step 3: Spray the top and bottom of plant leaves until wet, but not to the point of runoff. Repeat applications may be made to predominately Poa annua or white clover sites as needed, but not less than two weeks after the previous application. Specific turf species may require longer retreatment so it would be best to refer to the label. 

Where to Use

Proxy Growth Regulator can be used on turf including golf (greens, tees, fairways, and roughs), parks, and sports turf.

Commercial Turfgrasses including Bentgrass, Kentucky Bluegrass, Perennial Ryegrass, Tall and Fine Fescue, and Bermudagrass can also be treated.

Not For Residential Use.

When to Use

For best turfgrass growth regulation, apply when daytime air temperatures are above 65 degrees Fahrenheit and rising.  

Do not treat turfgrass with poor root systems or growing under stress due to poor soil conditions, drought, disease, or insect damage.

Safety Information

Proxy Growth Regulator is safe for people and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product. 

Do not allow people or pets to enter the treated area until the spray has dried.

Special Considerations

Use of a spreader sticker with an application of Proxy Growth Regulator is not necessary.

Prolonged exposure to spray deposits will damage acrylic plastics, certain paints, and metals because of the acidic nature of this product. Rinse thoroughly all exposed acrylic plastic materials and painted surfaces with a detergent and water within one hour after exposure to spray deposits.

AvailabilityOnline
Restricted UseNo
Shipping Restrictions
* = not registered** = restricted use
2.5 Gallon: AK*, DC*, HI*, OH*, VT**, WA*
BrandENVU (FORMERLY BAYER)
Keith's Pro Tips"Mow regularly but not too short, keeping grass at its recommended height to reduce stress and slow regrowth. Avoid over-fertilizing, especially with high-nitrogen products, as excess nutrients stimulate rapid growth."
Product DrawbacksScalping may occur on creeping bentgrass cultivars after more than 2 applications of this product for Poa seedhead suppression.
Application EquipmentBackpack Sprayer, Hose End Sprayer, Pump Sprayer
Application MethodsBroadcast Spray
Active IngredientEthephon 21.7%
Product TypePlant Growth Regulator
FormulationSuspended Concentrate
Application RateApply 5 fl. oz. of Proxy Growth Regulator per 1 to 2 gallons of water per 1,000 sq. ft.
Shelf LifeProxy Growth Regulator will last for 3 years when stored in a cool, dry area.
Yield2.5 gallons of Proxy Growth Regulator will cover 64,000 sq. ft.
Use SitesOutdoors
Time to KillA period of 2-3 weeks after application is required for maximum performance.
Comparable ProductsEthephon 2SL Plant Growth Regulator
EPA Registration #101563-40
More Information
Restricted Use No
Shipping Restrictions AK, DC, HI, OH, WA
Availability Online
Signal Word DANGER
Keith's Pro Tip "Mow regularly but not too short, keeping grass at its recommended height to reduce stress and slow regrowth. Avoid over-fertilizing, especially with high-nitrogen products, as excess nutrients stimulate rapid growth."
Time to Kill A period of 2-3 weeks after application is required for maximum performance.
Chemical Type Plant Growth Regulator
Formulation Suspended Concentrate
Application Methods Broadcast Spray
Product Drawbacks Scalping may occur on creeping bentgrass cultivars after more than 2 applications of this product for Poa seedhead suppression.
Active Ingredient Ethephon 21.7%
Application Equipment Backpack Sprayer, Hose End Sprayer, Pump Sprayer
Mix Rate Apply 5 fl. oz. of Proxy Growth Regulator per 1 to 2 gallons of water per 1,000 sq. ft.
Use Sites Outdoors
Yield 2.5 gallons of Proxy Growth Regulator will cover 64,000 sq. ft.
EPA Registration No. 101563-40
Shelf Life Proxy Growth Regulator will last for 3 years when stored in a cool, dry area.
Comparable Products Ethephon 2SL Plant Growth Regulator
Children or pets? Yes
Property Characteristics None

*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.

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