Cutless Application

Cutless Turf Growth Regulator application guidelines and tips. 

Add Cutless 50W or Cutless MEC Liquid to a spray tank half-filled with clean water.  Begin agitation, allowing sufficient mixing time to ensure complete dispersion and mixing of Cutless.  Finish filling the spray tank.  Continue agitation throughout the spraying operation to ensure uniform application.  Cutless should be applied using a boom-type sprayer with bypass and/or mechanical agitation calibrated to deliver 40 to 200 gallons/acre of spray solution (1 to 4.6 gallons/1000 ft²).  In-line strainers and nozzle screens should be 50 mesh or larger.  The use of a coloring agent to mark areas already sprayed is suggested for uniform application without skips and overlaps.  Performance should be improved with the addition to the spray mix of a readily available nitrogen (N) source at 0.125 to 0.5 lbs N/1000ft² or iron (Fe) at suggested label rates. 

Cutless 50W and/or Cutless MEC Liquid + tank-mixtures

Cutless can be tank-mixed and is compatible with most commonly used pesticides and foliar nutrient products.  However, compatibility of Cutless with tank-mix partners should be tested before use. 

Note: It is recommended that the compatibility of Cutless 50W and/or Cutless MEC Liquid in any tank-mix combination be tested before use.  To determine the physical compatibility with other products, use a jar test as described below.

Using a quart jar, add the proportionate amounts of the products to 1 quart of water. Add wettable powders and water-dispersible granular products first, then liquid flowables, then emulsifiable concentrates last. After thoroughly mixing let stand for at least 5 minutes. If the combination remains mixed or can be remixed readily, it is physically compatible. Once compatibility has been proven, use the same procedure sequence for adding required ingredients to the spray tank. 

Read and follow all label directions for each tank-mix product.

Application timing

Spring applications should be made after resumption of active seasonal growth of turfgrass.  The final application of the season should be timed at least 4 weeks before the onset of inactive grass growth or winter dormancy.  Applications to overseeded turfgrass in dormant bermudagrass stands should be completed 4 weeks prior to expected bermudagrass green-up.

Irrigation

Cutless is primarily root-absorbed.  To maximize growth regulator activity, treated areas should receive 0.25 to 0.5 inch of rain or supplemental irrigation within 24 hours following application and prior to the first mowing after treatment.

Turf color and post-treatment turf management

Turfgrass treated with Cutless may appear darker green in color.  This color change, which appears 1 to 2 weeks after treatment, may persist an additional 3 to 6 weeks.  Treated areas should be managed to encourage the growth of a healthy, vigorous turf. 

Rate information for Cutless 50W Poa annua conversion to perennial turfgrass

Multiple application program

A multiple application perennial grass conversion program using Cutless provides Poa annua suppression and cool-season turf conversion.  This program provides a gradual perennial grass conversion reducing Poa annua populations over on to several growing seasons.  To maximize seedling establishment, do not apply Cutless two (2) weeks prior to and/or 2 weeks after interseeding or overseeding of perennial turfgrass.   

Bentgrass (golf course fairway-type turf)

Because annual turfgrass such as Poa annuais more strongly regulated by Cutless, careful use of Cutless on putting greens with a high percentage of Poa annua can shift the competitive balance between bentgrass and Poa annua to favor bentgrass.  Follow normal management practices such as fertilization, aeration and interseeding/overseeding that encourage growth of bentgrass.  Use of Cutless on bentgrass greens may increase putting speed without reducing the height of cut. 

Bentgrass greens with less than 50% Poa annua. Apply Cutless to bentgrass as part of an overall greens management program.  An initial application of Cutless should be made in the spring months after bentgrass greens are growing vigorously and have been mowed 3 or 4 times.  Apply Cutless at a rate of 0.25 to 0.5 lb/acre (0.1 to 0.2 z/1000 ft²).  Repeat applications of 0.25 to 0.5 lb/acre (0.1 to 0.2 oz/1000 ft²) of Cutless should be made at 2 to 4 week intervals through early fall. 

Kentucky bluegrass, perennial ryegrass

Apply Cutless to Kentucky bluegrass and perennial ryegrass at a rate of 0.75 to 1.0 lb/acre in early spring following resumption of active growth of the grass.  Repeat applications of 0.5 to 1.0 lb/acre of Cutless should be made at 3 to 6 week intervals until late summer or early fall.  Normal management practices such as fertilization, aeration and interseeding/overseeding will encourage growth of bluegrass and/or ryegrass. 

This chart displays recommended rate ranges for Poa annua (annual bluegrass) conversion to perennial turfgrasses with Cutless Turf Growth Regulator, using a multiple application program. 

Rate information for Cutless MEC Liquid Poa annua conversion to perennial turfgrass

Multiple application program

A multiple application perennial grass conversion program using Cutless MEC Liquid provides Poa annua suppression and cool-season turf conversion.  This program provides a gradual perennial grass conversion, reducing Poa annua populations over one to several growing seasons.  To maximize seedling establishment, do not apply Cutless MEC Liquid two (2) weeks prior to and/or 2 weeks after interseeding and overseeding of perennial turfgrass.  

Bentgrass putting greens

Because annual turfgrass species such as Poa annua are more strongly regulated by Cutless MEC Liquid, careful use of Cutless MEC Liquid on putting greens with a high percentage of Poa annua can shift the competitive balance between bentgrass and Poa annua to favor bentgrass.  Follow normal management practices such as fertilization, aeration and interseeding/overseeding that encourage growth of bentgrass.  Use of Cutlesss MEC Liquid on bentgrass greens may increase putting speed without reducing the height of cut. 

Bentgrass greens with less than 50% Poa annua.  Apply Cutles MEC Liquid to bentgrass as part of an overall greens management program.  An initial application of Cutless MEC Liquid should be made in the spring months after bentgrass greens are growing vigorously and have been mowed 3 or 4 times.  Apply Cutless MEC Liquid at a rate of 12.3 to 24.6 fl. oz./acre.  Repeat applications of 12.3 to 24.6 fl. oz./acre of Cutless MEC Liquid should be made at 2 to 4 week intervals through early fall.

Bentgrass greens with more than 50% Poa annua.  Apply Cutless MEC Liquid to bentgrass greens at a rate of 12.3 fl. oz/acre in the spring months after bentgrass greens are growing vigorously and have been mowed 3 to 4 times.  Repeat applications of 12.3 to 24.6 fl. oz./acre of Cutless MEC Liquid should be made at 2 to 4 week intervals through early fall.

Kentucky bluegrass, perennial ryegrass

Apply Cutless MEC Liquid to Kentucky bluegrass and perennial ryegrass at a rate of 36.9 to 49.2 fl. oz./acre in early spring, following resumption of active growth of the grass.  Repeat applications of 24.6 to 29.2 fl. oz./acre of Cutless MEC Liquid should be made at 3 to 6 week intervals until late summer or early fall.  Normal management practices such as fertilizatoin, aeration and interseeding/overseeding will encourage growth of bluegrass and/or ryegrass. 

Cutless in Depth

 
Don't forget: Get maximum savings on SePRO products through the Pinnacle program when you purchase by January 31, 2018. Click here for program information.