Cimarron Plus Herbicide

DIRECTIONS FOR USE:

IMPORTANT RESTRICTIONS:

• Do not apply this product through any type of irrigation system.
• Injury to or loss of desirable trees or vegetation may result from failure to observe the following:
  • Do not apply Cimarron Plus Herbicide, or drain or flush equipment on or near desirable trees or other plants, or on areas where their roots may extend, or in locations where the chemical may be washed or moved into contact with their roots.
  • Do not use on lawns, walks, driveways, tennis courts, golf courses, athletic fields, commercial sod operations, or other high-maintenance, fine turfgrass areas, or similar areas.
  • Do not use on grasses grown for seed.
• Do not contaminate irrigation ditches or water used for domestic purposes.
• Do not apply to irrigated land where the tailwater will be used to irrigate crops.
• Do not apply to frozen or snow covered ground as surface runoff may occur.
• Treatment of powdery, dry soil or light, sandy soil when there is little likelihood of rainfall soon after treatment may result in off target movement and possible damage to susceptible crops when soil particles are moved by wind or water. Injury to crops may result if treated soil is washed, blown, or moved onto land used to produce crops. Injury may be more severe when the crops are irrigated. Do not apply Cimarron Plus Herbicide when these conditions are identified and powdery, dry soil or light or sandy soil are known to be prevalent in the area to be treated.
• Do not apply more than 2.0 ounces of Cimarron Plus Herbicide per acre per year when applying to rangeland, pastures, grass hay fields or grasses in the Conservation Reserve Program (CRP).
• If tank-mixing or sequentially applying products containing metsulfuron methyl to rangeland, pastures, grass hay fields or grasses in the Conservation Reserve Program (CRP) do not apply more than the equivalent of 1 ounce of metsulfuron methyl active ingredient per acre per year.
• If tank-mixing or sequentially applying products containing chlorsulfuron to rangeland, pastures, grass hay fields or grasses in the Conservation Reserve Program (CRP), do not apply more than the equivalent of 1 ounce of chlorsulfuron active ingredient per acre per year.

IMPORTANT PRECAUTIONS:

• Cimarron Plus Herbicide may cause injury to desirable trees and plants when contacting their roots, stems or foliage. These plants are most sensitive to Cimarron Plus Herbicide during their development or growing stage.
• Grass species or varieties may differ in their response to various herbicides. Bayer CropScience LP recommends that you first consult your state experiment station, university, or extension agent as to sensitivity to any herbicide. If no information is available, limit the initial use of Cimarron Plus Herbicide to a small area. Components in a grass seed mixture will vary in tolerance to Cimarron Plus Herbicide so the final stand may not reflect the seed ratio.
• Under certain conditions such as heavy rainfall, high pH, prolonged cold weather, or wide fluctuations in day/night temperatures prior to or soon after Cimarron Plus Herbicide application, temporary discoloration and/or grass injury may occur. Cimarron Plus Herbicide should not be applied to grass that is stressed by severe weather conditions, drought, low fertility, water-saturated soil, disease, or insect damage, as grass injury may result. Severe winter stress, drought, disease, or insect damage before or following application also may result in grass injury.
• Applications may make some toxic plants more palatable as the weeds are dying. Do not graze treated areas until toxic plants are dry and unpalatable to livestock.
• Applications of Cimarron® Plus Herbicide to pastures, rangeland or CRP undersown with legume crops may cause severe injury to the legumes. Legumes in a seeding mixture may be severely injured or killed following an application of Cimarron Plus Herbicide.
• Applications made where runoff water flows onto agricultural land may injure crops. Applications made during periods of intense rainfall, to soils saturated with water, or soils through which rainfall will not readily penetrate may result in runoff and movement of Cimarron Plus Herbicide. Treated soil should be left undisturbed to reduce the potential for Cimarron Plus Herbicide movement by soil erosion due to wind or water.
• For ground applications applied to weeds when dry, dusty field conditions exist, control of weeds in wheel track areas may be reduced.
• Avoid disturbing (e.g. mowing) treated areas for at least 7 days following application.

WEED RESISTANCE

Cimarron Plus Herbicide, which contains the active ingredients, metsulfuron methyl and chlorsulfuron, is a Group 2 herbicide based on the mode of action classification system of the Weed Science Society of America. When herbicides with mode of action classifications that affect the same biological sites of action are used repeatedly over several years to control the same weed species in the same treatment area, naturally-occurring resistant biotypes may survive a correctly applied herbicide treatment, propagate, and become dominant in that area. Adequate control of these resistant weed biotypes cannot be expected. If weed control is unsatisfactory, it may be necessary to retreat the problem area using a product affecting a different biological site of action.

To better manage herbicide resistance through delaying the proliferation and possible dominance of herbicide resistant weed biotypes, it may be necessary to change cultural practices such as retreatment, tank-mix partners and/or sequential herbicide applications that affect a different site of action. Weed escapes that are allowed to go to seed, and movement of plant material between treatment areas on equipment will promote the spread of resistant biotypes. It is advisable to keep accurate records of pesticides applied to individual fields to help obtain information on the spread and dispersal of resistant biotypes. Consult your agricultural dealer, consultant, applicator, and/or appropriate state agricultural extension service representative to determine appropriate actions for treating specific resistant weed biotypes in your area.

RANGELAND, PASTURES, GRASS HAY FIELDS AND CRP NEW PLANTINGS:

Cimarron Plus Herbicide is recommended for the control or suppression of broadleaf weeds to aid in the establishment of the following perennial native or improved grasses planted in rangeland, pastures, grass hay fields or acres enrolled in the Conservation Reserve Program (CRP):

Blue Grama, Bluestems (big, little, plains, sand, WW spar), Buffalograss, Green sprangletop, Indiangrass, Kleingrass, Lovegrasses (atherstone, sand, weeping, wilman), Orchardgrass, Sideoats grama, Switchgrass (blackwell), Wheatgrass (crested, intermediate, pubescent, slender, streambank, tall, thickspike western), Wildrye grass (Russian).

Maximize potential for grass establishment by consulting with the Natural Resources and Conservation Service or other local experts concerning planting techniques and other cultural practices. Due to the inability of newly planted grass stands to sufficiently compete with weeds, and the severity of weed pressure in new grass stands, performance from Cimarron Plus Herbicide may not always be satisfactory. An additional herbicide application with a different mode of action or mowing may be needed. Only make one Cimarron Plus Herbicide application in the year of planting.

Preplant (prior to planting) or Preemergence (after planting but before grass emergence):

Apply Cimarron Plus Herbicide preplant or preemergence at 0.125 ounce/acre plus a non-ionic surfactant at the rate of 4 pints/100 gallons of spray solution on all labeled grasses except orchardgrass and Russian wildrye grass. Do not apply Cimarron Plus Herbicide preplant or preemergence to orchardgrass and Russian wildrye grass as severe crop injury may result.

Early postemergence to new plantings:

Apply Cimarron Plus Herbicide at 0.125 ounce/acre, plus a non-ionic surfactant at the rate of 2 to 4 pints/100 gallons of spray solution on all labeled grasses anytime after grass emergence. Do not use a spray adjuvant other than non-ionic surfactant. Because grass species differ in time of emergence, apply only after majority of grasses are in the 3 to 4 leaf stage.

Postemergence to stands with 1-5 leaf grasses planted the previous season:

Apply Cimarron Plus Herbicide at 0.125 ounce/acre plus a non-ionic surfactant at the rate of 2 to 4 pints/100 gallons of spray solution, on all labeled grasses when the majority of the grasses have one or more leaves. Do not use a spray adjuvant other than non-ionic surfactant.

ESTABLISHED GRASSES

Use Rates for Established Grasses:

Apply 0.125 to 1.25 ounces Cimarron Plus Herbicide per acre as a broadcast application to established grasses in rangeland, pastures, grass hay fields or acres enrolled in the Conservation Reserve Program (CRP) and/or undesirable vegetation in uncultivated areas (fence rows, farmyards, and rights-of-way) which are adjacent to, or pass through or transect, treated rangeland, pastures, grass hay fields or CRP. Include a spray adjuvant (see SPRAY ADJUVANTS section). Do not apply more than 4 applications per year. Allow at least 14 days between applications. Do not apply more than 2.0 ounces of Cimarron Plus Herbicide per acre per year.

Application Timing for Established Grasses:

Cimarron Plus Herbicide may be applied to established native grasses such as bluestems and grama, and on other established pasture grasses such as Bermudagrass, bluegrass, orchardgrass, bromegrass, fescue and timothy that were planted the previous growing season (or earlier) and are fully tillered, unless otherwise directed on this label. Cimarron® Plus Herbicide may also be applied to established grasses that have been inter-seeded with cereal grasses for grazing (such as barley, oats, rye and wheat). Specific application timing information on several of these grass species follows:

• Bermudagrass - 2 months
• Bluegrass, bromegrass (except Matua bromegrass) and orchardgrass - 6 months
• Timothy - 12 months
• Fescue - 24 months

Buffalograss Precautions:

Do not use Cimarron Plus Herbicide on buffalograss that has been established for less than one year or on stands grown for seed production. Do not apply more than 0.625 ounces per acre of Cimarron Plus Herbicide per application to buffalograss.

Fescue Precautions:

Note that Cimarron Plus Herbicide may temporarily stunt fescue, cause it to turn yellow, or cause seedhead suppression. To minimize these symptoms, take the following precautions:

• Make application later in the spring after the new growth is 5 to 6 inches tall, or in the fall.
• Do not use more than 0.5 ounces per acre of Cimarron Plus Herbicide per application.
• Use a non-ionic surfactant at 0.5 to 1 pint per 100 gallon of spray solution (0.06 to 0.12% v/v). Do not use a spray adjuvant other than non-ionic surfactant.
• Do not use surfactant when liquid nitrogen is used as a carrier. The first cutting yields may be reduced due to seedhead suppression resulting from treatment with Cimarron Plus Herbicide.

Timothy Precautions:

Timothy should be at least 6" tall at application and be actively growing. Applications of Cimarron Plus Herbicide to timothy under any other conditions may cause crop yellowing and/or stunting. To minimize these symptoms, take the following precautions:

• Make applications in the late summer or fall.
• Do not use more than 0.375 ounce/acre of Cimarron Plus Herbicide.
• Use the lowest recommended rate for target weeds.
• Use a non-ionic surfactant at 0.5 pint per 100 gallons (0.06% v/v). Do not use a spray adjuvant other than non-ionic surfactant.
• Do not use surfactant when liquid nitrogen is used as a carrier.
• Tank mix Cimarron Plus Herbicide with 2,4-D.

Other Pasture and Rangeland Grasses:

Do not use on bentgrass or susceptible grass pastures such as carpetgrass, Matua bromegrass or St. Augustine grass. Applications of Cimarron Plus Herbicide may cause severe injury to and/or loss of Pensacola bahiagrass, ryegrass (Italian or perennial) and Garrison’s creeping foxtail pastures. Varieties and species of forage grasses differ in their tolerance to herbicides. When using Cimarron Plus Herbicide on a particular grass for the first time, limit use to a small area. If no injury occurs throughout the season, larger acreage may be treated the following season.

SPOT APPLICATIONS

Cimarron Plus Herbicide may be used for suppression of weeds and brush on the WEEDS CONTROLLED OR SUPPRESSED list using spot applications or Individual Plant Treatments (IPT) in rangeland, pastures, grass hay fields or acres enrolled in the Conservation Reserve Program (CRP) and/or for undesirable vegetation in uncultivated areas (fence rows, farmyards, and rights-of-way) which are adjacent to, or pass through or transect, treated rangeland, pastures, grass hay fields or CRP.

Use Rates for Spot Applications:

For spot applications, mix 1.25 ounces of Cimarron Plus Herbicide per 100 gallons of water. Include a spray adjuvant (see SPRAY ADJUVANTS section). A dye may be added to the tank to help mark plants that have been sprayed. Thorough coverage of all foliage and stems is necessary to optimize results. Spray entire canopy to wet but not to the point of dripping. On tall, dense stands, it is often necessary to spray from all sides to obtain adequate coverage. Do not apply more than 2.0 ounces of Cimarron Plus Herbicide per acre per year.

Application Timing for Spot Applications:

Make a foliar application of Cimarron Plus Herbicide during the period from full leaf expansion in the spring until the development of fall coloration.

WEEDS CONTROLLED OR SUPPRESSED:

0.125 to 0.25 ounce per acre:

Blue/purple mustard*, Broomweed, common, Bur buttercup (testiculate), Buttercup, Canada thistle*T, Carolina geranium, Coast fiddleneck (tarweed), Common chickweedS, Common purslane, Conical catchfly, Corn gromwell*T, Cowcockle, Cutleaf evening primrose*T, Dandelion, False chamomile, Field pennycress (fanweed), Filaree, Flixweed*S, Groundsel (common), Kochia*S, Lambsquarters (commonS, slimleaf), Mayweed chamomile, Miners lettuce, Plains coreopsis, Plantain (except buckhorn), Prickly lettuce*S, Prostrate knotweed*T, Russian thistle*S, Shepherd’s purse, Smallseed falseflaxS, Smartweed (green, Ladysthumb, pale), Snow speedwell, Tansymustard*, Treacle mustardS (Bushy Wallflower), Tumble/Jim Hill mustard, Volunteer sunflower*, Waterpod, Wild buckwheat*T, Wild garlic*, Wild mustardS, Wild sunflower*T.

0.25 to 0.375 ounce per acre (all weeds above plus the following):

Annual marshelder, Bitter sneezeweed, Blackeyed-Susan, BuckbrushT, Burclover, Common yarrow, Curly dock, Henbit, Horsemint (beebalm), Marestail/HorseweedS, Musk thistle*, Pigweed (redrootS, smoothS, tumble), Purple scabious, Scotch thistle*, Western snowberryT, Wild carrot, Woolly croton*

0.375 to 0.625 ounce per acre (all weeds above plus the following):

Annual sowthistle, Aster, Bittercress, Chicory, Clover, CockleburS, Corn cockle, Crown vetch, Dogfennel, Goldenrod, Maximillion sunflower, Multiflora rose*T, Pennsylvania smartweed, Pensacola bahiagrass*, Redstem filaree, Rough fleabane, Seaside arrowgrass, Sericea lespedeza*, Silky crazyweed (locoweed), Sweet clover, Wild lettuce, Wood sorrel, Yankeweed

0.625 to 1.25 ounce per acre (all weeds above plus the following):

Black henbane, Blackberry, Broom snakeweed*, Buckhorn plantain, Common crupina, Common mullein, Dewberry, Dyer’s woad, Fringed sagebrush*, Gorse, Halogeton, Honeysuckle, Multiflora rose and other wild roses*, Plumeless thistle, Rosering gaillardia, Spotted knapweed*, Teasel, Wild caraway, Yucca*

1.25 ounce per acre (all weeds above plus the following):

AshT, AspenT, Black locustT, Bull thistle, CamelthorneT, CherryT, Common tansy, ElmT, Field bindweedT, Greasewood, Gumweed, HawthorneT, Houndstongue, Lupine, Perennial Pepperweed, Poison hemlock, Purple loosestrife, Purple scabious, Rush skeletonweed*T, Salmonberry, Salsify, Scouringrush, Scotch thistle, Snowberry (Common, Mountain), St. Johnswort, Sulphur cinquefoil, Thimbleberry, Tree of heaven, Western salsify, Whitetop (hoary cress), Wild Iris, Willow, Yellow poplar

* - See the Specific Weed Instructions section.

T - Weed suppression is a reduction in weed competition (reduced population and/or vigor) as visually compared to an untreated area. The degree of suppression varies with the rate used, the size of the weeds, and the environmental conditions following treatment.

S - Naturally occurring resistant biotypes of these weeds are known to occur. See WEED RESISTANCE section of the label for more information.

ENVIRONMENTAL HAZARDS:

Do not apply directly to water, or 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 washwater or rinsate.

* - See the Specific Weed Instructions section.

T - Weed suppression is a reduction in weed competition (reduced population and/or vigor) as visually compared to an untreated area. The degree of suppression varies with the rate used, the size of the weeds, and the environmental conditions following treatment.

S - Naturally occurring resistant biotypes of these weeds are known to occur. See WEED RESISTANCE section of the label for more information.

(See label for complete instructions).