Figure 1. Thistles (including Canada, Bull, and Musk) – with lots of residual, Milestone is the best product to use. Canada thistle can displace endangered or threatened plant species. Spray the weeds to wet but just before the point of runoff. Plumeless thistle flower with short, very sharp spines on the bracts. Complete control options, chemical effectiveness, and rates can found in the publication: Thistle Control in Pastures Scouting is always essential to identify the issue early allowing for timely, proactive mechanical or chemical control of thistles. In pastures, Canada thistle is a deterrent to grazing because cattle avoid eating the spiny leaves. Combining control methods is the best form of Canada thistle management. Reviewed by Dr. Leanne Dillard, May 2019. Next year, avoid overgrazing your pastures so your grass stands get thicker and compete with any new thistle seedlings. Making pasture improvement easy. Download a PDF of Thistle Control in Pastures and Hayfields, ANR-2149. pastures, grass seed crops, and sub clover seed crops only apply to established grass based pastures Damage may occur to legumes if present The use of MCPA (Thistle-Killem) is preferred to 2,4-D Amine (Amine 625) and Ester (Ester 800) in situations where legumes are undersown in the crop Ideal for use in spray/graze pasture management programs These light, fluffy seeds easily float in the breeze or attach to wildlife. Biennial thistles – musk, bull and plumeless – are all easy to control in the rosette stage. Clovers and medics will be eliminated for at least 12 months. The common name "thistle" applies to several plants, mostly within the aster family (Asteraceae), that feature prickly leaves and stems, and are commonly found in pastures and along roadsides. But, if you control a thistle in the rosette stage, it disappears before it has taken much from you. Animals leave 30cm (12in) ungrazed around each thistle plant. GrazonNext ® HL herbicide is the easiest way to get broadleaf weeds out of the way of pasture production. All these herbicides can provide good control if you spray soon, before musk thistles bolt. No matter which weed killer you use, though, be sure to read and follow label instructions, and be sure to spray on time. Shake the sprayer to ensure the solution is well-mixed and then you're ready to spray. An infestation of 50 thistles/20m², a common occurrence in heavily-infested pastures, will cut grass dry matter yields in half. The overall result is that thistles lower the productivity of pastures. Spray during active growth usually early winter to spring. Both can have substantial impacts on thistle seed production. Typically, this means 1 or 2 sprays per plant. The good news is that the herbicides available to control thistle will also control many of the winter annual weeds that are out there right now in Panhandle pastures and hayfields. Control measures include 2,4-D, Weedmaster (2,4-D+dicamba) or their generic alternatives, GrazonNext, Pasturegard, Remedy Ultra, or metsulfuron. Canada thistle is a creeping perennial that reproduces from vegetative buds in its root system and from seed. Capeweed, Paterson's curse, storksbill (corkscrews and Erodium species) and slender or sheep thistle are effectively controlled by spray grazing at low rates. Now is the time to scout grass pastures and hay in search of winter annual and biennial weeds. It provides a simple, lasting solution for the toughest pasture and rangeland weeds and clears the way for more forage, meaning greater flexibility in a grazing program and higher per-acre beef production at the lowest cost possible. Plumeless thistle seldom is found in cultivated fields, even when infestations are nearby in roadsides or pastures. Each can produce between 1,500 … Step 2 - Apply 2,4-D Amine To The Canada Thistle. Herbicide Use in Pastures and Federal Conservation Reserve Program (CRP) Acres GP3. Perhaps one of the most noxious weeds in the home garden, Canada thistle (Cirsium arvense) has a reputation for being impossible to get rid of.We won’t lie to you, Canada thistle control is difficult and requires a significant amount of effort to be successful, but the effort you put into controlling Canada thistle will pay off when you have a garden that is free from this annoying weed. Undersown in the rosette stage reduce the seed source wet but just before point... Spray … Now is the best product to use good stage of to. Infestations are nearby in roadsides or pastures or their generic alternatives, GrazonNext, Pasturegard, Ultra! 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