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Sepro Growth Regulators

Cutless MEC


2 x 2.5 Gal Case

Cutless* is a foliar applied and root absorbed plant growth regulator (PGR) for turf that reduces foliar shoot growth on a variety of turfgrass species. Cutless reduces shoot growth by interrupting the functions of gibberellic acid, and thus shortening the internodes, which reduces or slows the turfgrass's rate of growth, but does not impact its long-term development. Rather, using Cutless provides key benefits to treated turfgrass.


These benefits include:

  • Increased turf density

  • Improved turf color  

  • Reduced water use

  • Up to 50% reduction in mowing

  • Up to 50% fewer clippings

  • Suppresses Poa annua (annual bluegrass) populations in perennial turfgrasses


Additionally, Cutless is the leading turf PGR for Poa annua suppression. Cutless selectively suppresses the growth of annual bluegrass to a greater degree than desirable perennial turfgrasses, such as creeping bentgrass, shifting the competitive growth advantage away from Poa annua and towards creeping bentgrass. Therefore, over time, creeping bentgrass is able to grow laterally or “creep” into the suppressed Poa annua stand, resulting in successful conversion. This allows for a consistent and gradual conversion from Poa annua to creeping bentgrass with minimal disruption to the playability of the turfgrass. Programmed applications of Cutless have shown to reduce Poa annua populations by as much as 50 - 80% in the first year!


Impact of Cutless on turf growth


How Cutless works. Because it is antagonistic to both the formation and action of growth-promoting gibberellic acid in plants, Cutless causes a reduction in internode elongation. This makes turf more compact and lower growing.


Root effects and tillering. Cutless has no adverse effects on turfgrass root systems and helps encourage more tillers and stolons, with the net effect of increasing turf density.


Water use. Cutless reduces the leaf area of turfgrass plants. The smaller leaf area results in less water loss due to transpiration. In university tests, Cutless treatments resulted in water conservation from 11% to 29% compared to mowed untreated grass.

Color. At the peak of Cutless' growth effects, the grass turns a darker green color.


Cutless and turfgrass cultural practices


During the period of modified growth of Cutless treated turfgrass, changes in the following cultural practices can be expected.



Because Cutless treated grass grows at a slower rate; it takes longer to reach normal mowing height. This reduces both mowing requirement and the quantity of grass clippings. If normal practice returns clippings to the ground, there will be less clipping residue and unsightly clumps of freshly mowed grass will be reduced or eliminated. Reduced volume of clippings also may slow the buildup of thatch in turfgrass.



Cutless treated turfgrass transpires less, resulting in less water used than on similar untreated grass, so irrigation frequency can be reduced. Research has demonstrated that Cutless treated turf can use up to 29% less water compared to untreated turf.


Weed suppression

Research has shown that Cutless will inhibit the growth of a number of troublesome broadleaf weeds, including prostate and spotted spurge, oxalis, clover, veronica, henbit and ground ivy. Additionally, Cutless will inhibit growth of some annual grasses—including Poa annua, crabgrass, goosegrass, foxtail and annual sedges.


(Flurprimidol & Trinexapac-Ethyl)

8 oz Bottle

Labor is one of your highest costs of doing business as a Lawn and Landscape Maintenance business. What if you could reduce the time and frequency spent on string trimming? You could reduce the crew numbers on maintenance jobs and allocate that labor to other profit generating activities.


Now there is a product specifically designed to reduce string trimming.


Introducing Edgeless® Liquid Turf Growth Regulator


Key Benefits of Edgeless Liquid Turf Growth Regulator

  • Eliminate string trimming for up to 8 weeks

  • Easy to follow calibration and application instructions

  • Aesthetic improvement over total vegetation herbicide treatments, or unsightly scalping caused by string trimmers

  • No damage to the base of trees, wooden fences and posts as with string trimming

  • Increased profit from your company's reallocation of labor to other projects


About Edgeless LiquidEdgeless Liquid integrates the patented synergy of two turf growth regulators to control growth of turf grass and reduce string trimming requirements of both warm and cool-season turfgrass. Edgeless is applied as a 6-inch banded application wherever repeated string trimming or edging of turfgrass is required. Proper application of Edgeless can result in up to 8 weeks of growth control, greatly reducing the need for string trimming, resulting in improved profitability by reducing labor and fuel costs.

Where can Edgeless Liquid be used?Edgeless can be applied to perennial turfgrasses along the perimeter of lawns, perennial landscape beds, sidewalks, curbs, parking lots, driveways, posts, mailboxes, building structures, gravestones, fences, and around the base of trees and other similar areas. Edgeless is used to slow the growth of most warm and cool-season turfgrasses.


(Flurprimidol & Trinexapac Ethyl)

2 x 2.5 Gal Case

Legacy* Plant Growth Regulator (PGR) integrates patented† synergistic plant growth regulator technology to reduce stem elongation and leaf blade length in perennial warm- and cool-season turfgrasses on golf courses resulting in a more compact and dense growth habit. Legacy uniquely suppresses Gibberellic Acid (GA), the plant hormone responsible for cell elongation in most plants, which leads to its unsurpassed growth regulation. Legacy's synergistic growth regulation, resulting from its dual sites of action and plant uptake, leads to enhanced growth suppression, improved turfgrass color and quality, extended PGR spray intervals, discouragement of Poa annua (annual bluegrass), and more uniform growth regulation in mixed turfgrass stands.


Legacy’s patented site of action PGR synergy results in growth suppression, improved turfgrass color and quality, extended spray intervals, and suppression of Poa annua. Plant physiological advantages to applications of Legacy include:


  • Multiple plant sites of uptake: Legacy is absorbed by plants via roots, stems, and leaves; and

  • Multi-site activity within gibberellic acid (GA) biosynthesis pathway: Legacy inhibits GA production at both early and late stages in the pathway.


PGR absorption via the roots and foliage allows for more efficient uptake by the plant ensuring an optimal amount of active ingredient is available for GA inhibition. Additionally, blocking GA biosynthesis early and late in the biological pathway regulates GA more efficiently than at a single site within this cycle.


Benefits of Legacy applications to Turfgrass:


  • Shoot growth suppression of warm- and cool-season turfgrasses resulting in decreased mowing frequency and turfgrass clippings.

  • Increased turfgrass density, wear-resistance, and improved color on warm- and cool-season turfgrass species resulting in improved turf quality.

  • Suppression of Poa annua in cool-season turfgrasses.

  • Improved water use efficiency of warm- and cool-season turfgrass resulting in pre-drought stress conditioning. In university research, TGRs including the active ingredients in Legacy resulted in water conservation from 11% to 29% compared to mowed untreated grass.

  • Saves labor and fuel associated with mowing

  • Multiple plant sites of uptake provides synergy


Legacy is the only turf PGR on the market that is absorbed by the plant both via the shoots, crowns, and roots. Legacy provides both foliar, crown, and root uptake, ensuring sufficient active ingredient is translocated throughout the plant for maximum growth regulation to occur. The dual sites of uptake and action result in less potential for initial bronzing or discoloration. Legacy's systemic action quickly distributes the active ingredients to the growing point of the plant leading to unsurpassed growth regulation.


Dual sites of action provides synergy


Legacy is the only turf PGR that suppresses growth by inhibiting the production of Gibberellic Acid (GA) at two different sites within the biosynthetic pathway. By inhibiting GA production both early and late in the GA pathway, Legacy provides unparalleled GA inhibition efficiencies within the turfgrass plant.


(Flurprimidol, Trinexapac-Ethyl & Paclobutrazol)

2 x 2.5 Gal Case

Musketeer is the first turf plant growth regulator (PGR) to incorporate Triple Turf PGR Technology to uniquely and effectively suppress Gibberellic Acid synthesis, leading to superior growth regulation of targeted turfgrasses. Musketeer is the result of SePRO research and based upon patented turf PGR technology.


Specifically formulated to aggressively target growth suppression of Poa annua in cool-season turfgrass species, such as creeping bentgrass, while providing excellent turfgrass enhancement. The result—more bentgrass and less Poa annua.


Musketeer Features

  • Combines three PGR technologies to uniquely and effectively regulate and enhance targeted turfgrasses

  • Delivers enhanced conversion and suppression of Poa annua by allowing vigorous bentgrass growth compared to formulations of paclobutrazol alone

  • Reduced damage to Kentucky Bluegrass surrounds compared to paclobutrazol alone

  • Excellent turfgrass enhancement and improved color

  • Suppression of Dollar Spot and potential for less fungicide use over time


Turf Response to Musketeer


Musketeer’s triple turf PGR technology delivers enhanced growth suppression of Poa annua without negatively impacting the lateral growth and health of creeping bentgrass compared to formulations of paclobutrazol alone. Musketeer contains optimum ratios of flurprimidol, paclobutrazol, and trinexapac-ethyl to selectively suppress Poa annua growth while allowing the bentgrass (or other desired turf species) to continue to grow vigorously.


Where Can Musketeer Be Used?


Musketeer can be applied to actively growing cool- and warm-season turfgrass. Species include:

  • Creeping Bentgrass (greens, tees, fairways)

  • Perennial Ryegrass

  • Kentucky Bluegrass/Perennial Ryegrass Blends

  • Hybrid Bermudagrass

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