Keeping weeds out of the way of your pasture production during the summer months delivers the benefits you need to maximize your lowest-cost feed source — your grass.
No matter how you put it to work on your ranch, you can’t go wrong growing more grass. Consider the options and bottom-line benefits that healthy, productive pastures present:
Unless severely drought-stressed, summer is a valuable time to target many of those most troublesome broadleaf weeds, along with other later-emerging ones, such as ragweed, pigweed and goldenrod.
Target rangeland threats such as houndstongue, ironweed, common tansy, hawkweeds and knapweeds when they are emerged and actively growing to ensure maximum herbicide uptake and root translocation. The same goes for tough pasture weeds, including Canada thistle, pigweed and cocklebur.
As a rule, make GrazonNext® HL herbicide your first choice for most situations. GrazonNext HL controls more than 100 broadleaf weeds at multiple growth stages. You get preemergence and postemergence control — soil residual activity to stop new flushes of weeds for weeks after application — giving you longer-lasting control than either 2,4-D or dicamba.
Some of the toughest weeds, such as common mullein, houndstongue and spiny amaranth (unless treated before flowering), or woody species, including blackberry and multiflora rose, require a more specialized option. For those situations, go with Chaparral™ herbicide.
If a nonresidual option better meets your needs, go with PastureGard® HL herbicide. In addition to providing the best control of sericea lespedeza available, PastureGard HL controls many other weeds and woody plants.
Leafy spurge poses a unique challenge. Success requires commitment and the one-two punch only Tordon® 22K and GrazonPD3™ herbicides can provide.
Summer Recommendations for Rangeland and Pasture Weeds |
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| Product | Target Species/Application Rates |
| GrazonNext® HL herbicide The simplest solution for season-long control of the most broadleaf weeds. |
1.5 pints per acre Biennial thistles (musk, bull, plumeless), chickory, common cocklebur, curlycup gumweed, horsenettle, ironweed (tall and western), spiny amaranth (treat before flowering), pigweed (redroot and smooth), western ragweed, spotted knapweed, yellow starthistle |
| 1.5 pints + 1 to 2 pints Remedy® Ultra herbicide per acre Rose (multiflora and prairie wild; delay treatment nine to 12 months after mowing) |
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| 2.1 pints per acre Canada thistle, common mullein, goldenrod, hawkweed (yellow and orange), knapweed (diffuse, Russian) |
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| PastureGard® HL herbicide Broad-spectrum, nonresidual brush and broadleaf control in a single product. |
0.75 pint per acre Sericea lespedeza (Apply after maximum foliage development, when plants are 12 to 15 inches tall prior to bloom; increase the rate to 1.5 pints per acre for dense stands or later stages of growth.) |
| Chaparral™ herbicide The broadest-spectrum weed and brush control available. |
2 ounces per acre Biennial thistles (musk, bull, plumeless, through early bolting stage), wild parsnip, spiny amaranth, pigweed (redroot, smooth) |
| 2.5 ounces per acre Biennial thistles (late bolting through early flower stage), Canada thistle (after all plants have emerged up to flower stage) |
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| 3 ounces per acre Common mullein (bolting stage, shorter than 12 inches tall), ironweed (tall and western) |
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| 3.3 ounces per acre Canada thistle (flower stage), common mullein, houndstongue (add 1 pound 2,4-D per acre post-bud stage), rose (multiflora and prairie wild) and blackberry (delay treatment nine to 12 months after mowing) |
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Label precautions apply to forage treated with Chaparral and GrazonNext HL and to manure from animals that have consumed treated forage within the last three days. Consult the label for full details.
GrazonPD3 and Tordon 22K are federally Restricted Use Pesticides. Chaparral and GrazonNext HL are not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. State restrictions on the sale and use of Remedy Ultra apply. Consult the label before purchase or use for full details. Always read and follow label directions.