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Cutless* Back
Questions and Answers
1. What height should I mow my Cutless treated fairways?

Mowing heights should be maintained per normal procedures.
2. Can I lower my height of cut on Cutless treated fairways?

Although with certain turfgrass species (i.e., KY, bluegrass) this is possible, this practice in not recommended. Lowering cutting height below optimum created generally adverse effects to turfgrass.
3. Can we use Cutless on putting greens?

Yes. Cutless can be used as part of an overall greens management program. Annual turfgrass such as Poa annua are more strongly regulated by Cutless 50W. Cutless may be used to shift the competitive balance between bentgrass and Poa annua to bentgrass. Over time, the amount of Poa annua present in bentgrass greens can be reduced. Use of Cutless 50W on bentgrass greens can increase putting speed without reducing the height of cut.
4. What should be my fertilizer program with Cutless?

Apply 0.5 to 0.75lb. actual nitrogen per 1,000 sq. ft. at the time of Cutless application and then not again until effects of Cutless has diminished. Then fertilize as needed to maintain a healthy vigorous turf.
5. Is there an interaction between Cutless and sulfur or lead arsenate on Poa annua?

There is no chemical interaction involved when Cutless is applied to turfgrass where other pesticides or nutrients have been used. It is reasonable to expect, however, that if Poa annua is under stress from applications of various herbicides, Cutless' high level of growth reduction on this species will enhance the stress effect.
6. Does the temperature or humidity affect Cutless activity?

Applications made during periods of high humidity will increase the total amount of Cutless entering the plant through the foliage. This is due to a lengthening of drying time of the Cutless spray application. This occurrence will result in more rapid appearance of Cutless growth symptoms.
7. Will Cutless affect root growth?

Cutless has demonstrated no negative influence on turfgrass root growth. Some studies have actually indicated a positive impact of increased root mass versus not treated turfgrass.
8. How much will Cutless reduce mowings/clippings?

Mowing and clipping reductions resulting from Cutless treatment will vary with the turfgrass species and cultivar treated and the and the general growing conditions existing during Cutless' period of activity. Clipping volume reductions will be in the range of 30 to 50%. Mowing frequency reductions will only result if the turfgrass manager chooses to skip a normally scheduled mowing. This decision, of course, directly influences clipping reductions. If normal mowing schedules are maintained during the entire Cutless growth response cycle, clipping reductions will be larger than if Cutless treated areas are mowed more frequently than untreated areas.
9. What happens in heavy wear areas like cart paths or walkways?

Cutless should not be applied to areas subjected to concentrated heavy wear. If treated with Cutless, these areas will not be able to replace worn injured leaf tissue at an acceptable rate.
10. How soon after application can I reseed?

After two weeks.
11. How soon after reseeding can I apply?

Not until the newly seeded turfgrass has been established and mowed a minimum of four times and the area is fully covered.
12. Will my treated fairways increase in susceptibility to disease incidence?

No. But due to the reduced rate of growth during the Cutless growth response cycle, turfgrass susceptible to and experiencing a disease infection will have a greater percentage of leaf tissue infected. Such areas should be treated for disease control per normal turfgrass cultural practices.
13. What's the viability of Poa seed after treatment?

Cutless does not inhibit seedhead formation. It does delay flowering several days or more past normal and prolongs the time which seedheads persist on the Poa annua plant. Possible influences on seed viability are unknown at this time.
14. What extent of discoloration will I see?

If discoloration of Cutless treated occurs at all, it will begin 7 to 10 days following treatment. The turf will first take on a green-gray appearance. This may be accompanied by a slight leaf tip browning. This effect will last 1 to 2 weeks, and will progress to a darker green coloration, which persists for the duration of the Cutless growth cycle.
15. Will I experience any more or less winter damage on my Cutless fairways?

Cutless will have no effect on the potential for winter damage.
16. How do I handle an over application?

How long for recovery?

A moderate over application will not result in major concern or problems. The normal Cutless symptoms will just be more pronounced. If the over application is seriously high, the growth effects of Cutless can be fully antidoted by applying a foliar spray of gibberellic acid at 50 to 100 ppms. Growth will accelerate and return to normal. Fertilizer should then be applied to force continued growth.
17. What impact does Cutless have on thatch build-up?

Since Cutless reduces the quantity of clippings removed and redeposited on turf, thatch build-up on routinely treated areas will occur at a reduced rate.
18. Will Cutless kill my Poa?

Not at recommended Poa annua conversion rates. Poa will turn yellow, experience tip die-back and be less competitive.
19. How much Poa do I have on my fairways?

At the time Poa is in full flower, the population appears much greater than it actually is. An application of Cutless will quickly identify the exact amount of Poa present.
20. How much should I apply to convert my perennial grass from Poa?

The full conversion rate is 1.5lbs. Cutless 50W per acre. (See the Cutless label for instructions).
21. When do I apply in the spring?

Following full turf green-up, resumption of active growth and full vegetative cover of the target area.
22. What's the soil residual/buildup of Cutless?

Applied as recommended, Cutless will not build up in the soil.
23. What is the mode of action of Cutless?

Cutless is antagonistic to both the formation and action of gibberellic acid in plants. This results is a reduction in internode elongation.
24. Are ryegrass and bluegrass affected differently?

At the full growth regulator rate for cool-season grasses, bluegrass and ryegrass will respond the same. If the mowing frequency cycle has been lengthened, it is likely that just prior to the next mowing, ryegrass blades will have elongated above the height of the bluegrass blades.
25. How do I get rid of tip die-back?

If tip die-back occurs, it will persist until the affected leaves have grown sufficiently to be removed by normal mowing.
26. What happens with residual winter carryover from fall application?

Depending on the actual timing and rate of the fall application, there should be little if any residual effects the following spring. If they occur, they will be visible as a slight delay in spring green-up.
27. How soon after the initial application can I re-treat?

Not until the growth effects from the earlier application have fully dissipated and the treatment area has resumed normal growth.
28. What type of fertilizer do I use with Cutless?

Any fertilizer formulated with an appropriate turfgrass ratio (i.e., 3-1-2, 2-1-1, 4-1-3, etc.)
29. Are there interactions when Cutless is used with herbicides, insecticides, etc.?

No.
30. What type of application equipment should I use to apply Cutless?

Any properly calibrated sprayer that will uniformly apply the Cutless spray solution is recommended. A coloring agent in the spray tank is suggested to minimize overlap during application.
31. Will Cutless affect shrubs or flowers growing next to treated areas?

No, if the Cutless application is directed only to the turfgrass surface. If applied directly to the bare soil at the base of ornamentals, a typical growth response will result.
32. Can I reduce irrigation on Cutless fairways?

The frequency of irrigation to Cutless treated areas can generally be reduced.
33. What rate should I use in rough areas?

The maximum recommended rate for Cutless is 3.0 lbs. 50W/acre.
34. How do I apply in hard-to-mow areas?

Backpack or hand-held sprayers can be used in these areas. The only precaution is that care be exercised to provide as uniform coverage as possible.
35. What effect does it have on divot repair?

Divots fill more rapidly in Cutless treated turf due to an increase in the number of tillers and stolons.
36. Does it change the leaves?

Leaves of treated plants may become slightly broader than normal.
37. How long does the activity last?

Duration of response from treatment with Cutless varies with turfgrass species, rainfall, soil type, and fertility levels. The general range of response is from 8 to 14 weeks.
38. How is Cutless taken up in the plant?

Cutless is both foliar and root absorbed. Spray applications will be taken up by the foliage or the roots after irrigation or rainfall. Granular treatments will enter primarily through the roots.
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