Ethephon 2SL Plant Growth Regulator

5 out of 5 stars 1 Reviews | 4 Q&A

Ethephon 2SL Plant Growth Regulator
Price/Ea.
$141.36

Buy 2 or more: $132.38 each

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Average Rating

5 out of 5 stars Rating: 5

1 Review | 4 Q&A

Product Overview

Ethephon 2SL Plant Growth Regulator (PGR) helps slow down turf growth, particularly horizontal growth, while promoting lateral growth.  Ethephon 2SL is formulated with Gibberellin Biosynthesis Inhibitors or simply known as a Type 2 PGR (Plant Growth Regulator).  

Ethephon is also effective in suppressing seedheads of white clover and Poa annua, as well as disrupt the growth of any unwanted fruit in certain trees such as crabapple, apple, olive, and carob trees. It is also formulated to eliminate dwarf and leafy mistletoes. This growth regulator can be applied on a variety of turfgrasses including bentgrass, perennial ryegrass, Kentucky bluegrass, tall and fine fescue, as well as in landscapes, nurseries, golf courses, and much more.

Ethephon 2SL is not labeled for residential use; it is for agricultural and commercial use only.

Features and Specs

Active Ingredient Ethephon - 21.7%
Target pests Kentucky bluegrass, perennial ryegrass, tall and fine fescue, bentgrass, dwarf mistletoe, leafy mistletoe, apple trees, crabapple trees, carob trees, olive trees, and other undesirable fruit.
For use in Nursery, landscape, turf, trees, golf courses
Application Apply as a foliar spray to dwarf mistletoe shoots before mistletoe seed dispersal. If mistletoe regrowth occurs, re-treat before seed dispersal. For effective removal, all mistletoe shoots must be sprayed to wet.
Pet safe Yes, if used as directed on label.
Formulation Liquid.
NOT FOR SALE TO AK
Dimensions 8.50 x 10.00 x 13.75 in.
Coverage Area Coverage rates varies drastically depending on application process chosen and specific tree or grass targeted.
Special Features Slows down turf growth, while promoting lateral growth. Suppress seedheads of Poa and white clover.
Shipping Weight 24.00 lbs
Manufacturer Quali-Pro (Mfg. Number: 83013453)
UPC 072693345300
EPA Registration 66222-151

Details

DIRECTIONS FOR USE:

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.
Do not apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may be in the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pesticide regulations. Read the entire label before using this product.
Do not apply Quali-Pro Ethephon 2 SL through any type of irrigation system.
Do not use this product for purposes other than those listed on the label.
Do not exceed the rate of Quali-Pro Ethephon 2 SL per acre per year recommended on this label.

APPLICATION VOLUMES AND SPRAY COVERAGE:

Thorough spray coverage is essential to achieve maximum product effectiveness. Spray coverage is affected by choice of equipment, nozzle selection, and spray boom setup as well as spray pressure, plant size, and canopy density. For both air and ground applications, it is important to choose an equipment setup that will assure thorough coverage of plant canopy (foliage and fruit). The actual spray volume required will vary with the size and density of the plant canopy and the equipment used. In California and Arizona, use a volume of no less than 5 gallons per acre for aerial applications.

USE PRECAUTIONS:

DO NOT MIX QUALI-PRO ETHEPHON 2 SL WITH AMMONIUM THIOSULFATE. SUCH TANK MIXTURES MAY RESULT IN FORMATION OF TOXIC FUMES.

Mix only the amount of spray you expect to use each day. Do not allow mixed solution to stand overnight. Avoid spray drift to nearby crops as this product will cause modification in plant growth. Plant injury or reduced yields will result. Do not plant another crop within 30 days after treatment. Do not use Quali-Pro Ethephon 2 SL with additives other than recommended on this label. Avoid spills of concentrated product on spray equipment or airplane parts. IMMEDIATELY RINSE ANY SPILLS WITH PLENTY OF WATER, AS QUALI-PRO ETHEPHON 2 SL IS CORROSIVE.

MISTLETOE REMOVAL:

Quali-Pro Ethephon 2 SL will remove dwarf mistletoe shoots in ornamental conifers and leafy mistletoe from ornamental deciduous trees.

  • DWARF MISTLETOE
    • On Ornamental Conifers: 2 pints per 20 gallons.
    • On Ornamental Douglas Firs: 1 pint per 20 gallons
    • Specific Directions: Apply as a foliar spray to dwarf mistletoe shoots before mistletoe seed dispersal. If mistletoe regrowth occurs, re-treat before seed dispersal. For effective removal, all mistletoe shoots must be sprayed to wet. Use of a non-ionic surfactant at recommended rates may increase effectiveness.
    • Remarks: Applications made in conjunction with sylvicultural mistletoe management will prevent spread of the mistletoe parasite to other parts of the tree and other trees. Mature needle drop, that normally occurs in the fall, may be hastened by the use of Quali-Pro Ethephon 2 SL. Applications of higher rates on Douglas fir may result in excessive needle drop.
  • LEAFY MISTLETOE
    • On Ornamental Deciduous Trees: 2 quarts per 20 gallons
    • Specific Directions: Make foliar applications after fall leaf drop through mid-winter. If mistletoe regrowth occurs, re-treat before mid-winter. For effective removal, all mistletoe shoots must be sprayed to wet. Use of a non-ionic surfactant at recommended rates may increase effectiveness.
    • Remarks: Large mistletoe infections and mistletoe found in mesquite may be difficult to control with a single application and re-treatment may be necessary.

UNDESIRABLE FRUIT ELIMINATION (For Use Only on Ornamentals):

Quali-Pro Ethephon 2 SL will reduce or eliminate undesirable fruit development on apple, crabapple, carob, and olive trees.

  • APPLES, CRABAPPLES: 8.0 -12.0 fl. oz. per 20 gallons. / CAROB: 6.0 fl. oz. per 20 gallons
    • Specific Directions: Apply as a foliar spray at the flower bud to full bloom stage prior to fruit set. Wet foliage thoroughly. Excess application of Quali-Pro Ethephon 2 SL can result in excessive leaf drop and/or tree defoliation. Use higher rates when temperatures are cool.
  • OLIVE*: 12.0 fl. oz. per 20 gallons.
    • Specific Directions: Apply as a foliar spray. Wet all foliage thoroughly. Amount of spray will depend on tree size.
  • Remarks: Application must be made before fruit set for best results. Some leaf drop or temporary leaf yellowing may occur after treatment.

*This recommendation is not intended to be used on commercial fruit production as a thinning agent.

USE LIMITATIONS:

  • Do not treat weak trees or trees under stress (drought, insect, or disease damaged trees), as excessive leaf drop or twig drop can result.
  • Do not use on small red fruited varieties of crabapple, as fruit elimination will not be satisfactory.

TURF:

Quali-Pro Ethephon 2 SL is a plant growth regulator that may be used to suppress the formation of seedheads of various plants including Poa annua and white clover. It may also be used to suppress the growth of certain cool season grasses. Quali-Pro Ethephon 2 SL is foliarly absorbed and is most effective on actively growing healthy turf. For best results, apply in sufficient volume of water to provide uniform coverage. Use of spreader/sticker with an application of Quali-Pro Ethephon 2 SL is not necessary. Quali-Pro Ethephon 2 SL is rainfast within 2 hours. Do not allow entry into treated area until Quali-Pro Ethephon 2 SL has dried. For maximum performance, delay mowing until the day after application.

Precautions and Restrictions:

  • Do not treat turfgrass with poor root systems or growing under stress due to poor soil conditions, drought, disease, or insect damage.
  • Do not use Quali-Pro Ethephon 2 SL in areas where excessive thatch has accumulated.
  • Scalping may occur on creeping bentgrass cultivars after more than 2 applications of Quali-Pro Ethephon 2 SL for Poa seedhead suppression.
  • Quali-Pro Ethephon 2 SL has been used successfully on many bentgrass cultivars. Tolerance testing should be done in new cultivars before extensive use.
  • Do not exceed a maximum of 30 oz. of Quali-Pro Ethephon 2 SL per 1000 sq. ft. per year.
  • Do not mix with ammonium thiosulfate. This tank mix may result in the formation of toxic fumes.

Seedhead Suppression: Foliar application of Quali-Pro Ethephon 2 SL will provide suppression of Poa annua and white clover seedheads. Make the initial application prior to the emergence of new seedheads. A period of 2-3 weeks after application is required for maximum performance. 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.

APPLICATION:

Poa annua and White Clover Seedhead Suppression: 5 fl. oz./ 1000 sq. ft. - 1 to 2 gal per sq. ft.

Stites:

  • Golf course turf including Greens*, Tees*, Fairways, and Roughs
  • Commercial Turfgrasses including Bentgrass, Kentucky Bluegrass, Perennial Ryegrass, Tall and Fine Fescue, and Bermudagrass*

Reapplication interval: 2 weeks or greater for all labeled grasses.

*Do not use in California on greens, tees, or Bermudagrass unless accompanied by supplemental labeling.

Tank Mixture with Products containing the active ingredient Trinexapac-Ethyl: Tank mixtures of Quali-Pro Ethephon 2 SL at 5 oz./1000 sq. ft. and trinexapac-ethyl-containing products such as T-NEX or Primo MAXX at 0.125 or 0.25 oz./1000 sq. ft. can be used to promote seedhead suppression as well as turfgrass quality. Multiple applications of the tank mix combination may be needed. The number of applications must not exceed recommendations for rates or timings for either product applied once. Follow the recommendation on each product label for the most restrictive application interval for each turfgrass. Application of this tank mixture during frost periods may cause temporary turf discoloration.

Growth Suppression: An application of Quali-Pro Ethephon 2 SL slows the growth of turfgrasses, thus reducing the required frequency of mowing and the volume of clippings collected. For best turfgrass growth regulation, apply Quali-Pro Ethephon 2 SL when daytime air temperatures are 65 degrees F and rising. Quali-Pro Ethephon 2 SL should only be applied once turfgrass mowing heights have been established for the season. Avoid multiple applications of Quali-Pro Ethephon 2 SL in areas where excessive thatch has accumulated.

APPLICATION:

Turfgrass Growth Regulation

Reapplication intervals:

  • Kentucky Bluegrass - 7 weeks
  • Perennial Ryegrass - 7 weeks
  • Tall/Fine Fescue - 4 weeks
  • Bentgrass - 4 weeks

Sites:

  • Golf course turf including Greens*, Tees*, Fairways, and Roughs
  • Commercial Turfgrasses Including Bentgrass, Kentucky Bluegrass, Perennial Ryegrass, Tall and Fine Fescue

Rate: 5 fl. oz. per 1000 sq. ft. - 1 to 2 gal per sq. ft.

ENVIRONMENTAL HAZARDS:

Do not contaminate water used for irrigation or domestic purposes. Do not apply directly to water, to areas where surface water is present, or to intertidal areas below the mean high water mark. Do not contaminate water when disposing of equipment washwaters. Avoid spray drift to nearby crops, as this product will cause modifications in plant growth. Plant injury or reduced yields may result. Do not plant another crop within 30 days after treatment. Drift and runoff may be hazardous to aquatic organisms in water adjacent to treated areas.

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  • 5 of 5 Stars

    It works

    By Jerry on 05/04/2024

    I needed something to combine with T-Nex for control of Poa Annua seed heads. This product fit the bill.

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Questions & Answers

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Q
Is Ethephon 2SL Plant Growth Regulator shelf stable? If closed tightly is it ok to use 1/3 now 1/3 next year & last 1/3 the year after?
A

Ethephon 2SL has a 3-5 year shelf life when stored properly (out of direct sunlight and away from extreme temperatures).

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1 of 1 people found this answer helpful

Q
What's the mixture per ounce for Ethephon 2SL Plant Growth Regulator?
A

The usage rate varies of Ethephon 2SL Plant Growth Regulator depending on what you are treating for. Pleaser refer to the product label for complete information

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Q
What is the difference between Ethephon 2SL and T-Nex?
A
Ethephon SL

and T-Nex are both plant growth regulators; however, they have different active ingredients and are labeled for different uses.  Ethephon SL is also labeled to disrupt the growth of any unwanted fruit in certain trees such as crabapple, apple, olive, and carob trees. It is also formulated to eliminate dwarf and leafy mistletoes.  Ethephon SL is to be applied by professionals for agricultural and commercial use and is not for residential purposes. 

T-Nex is labeled to reduce the growth of cool and warm season grasses while helping improve their quality and stress tolerance.  This is labeled for residential use.

https://www.domyown.com/ethephon-2sl-p-16611.html
https://www.domyown.com/tnex-p-16595.html

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Q
Differance between Ethepnon and T-Nex...?

What is the difference between T-Nex and Ethephon? They seem to do the same thing?

A
It appears the major difference between the two products are where they can be applied. Ethephon 2SL Plant Growth Regulator can be applied to nurseries, landscapes, turf, trees, and golf courses. T-Nex Plant Growth Regulator can be applied to Commercial & Residential Turf-grass: Golf Courses, Sod Farms*, Sports Fields, Cemeteries, Difficult-to-Mow areas *Not for Use on Sod Farms in AZ. 

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