Owned by the local homeowners here. READ THE DIRECTIONS so you don't get hurt. ;-{>. Weeds can greatly impact the overall carrying capacity of a hayfield. We've been using Outlaw this year, weeds are getting big now but it seems to knock their ass over. The best time to treat biennial thistles with herbicides is in late fall or early spring when the rosettes are present but before flowering stalks are initiated.Musk thistle and bull thistle plants with seed stalks are more difficult to kill than the rosettes. That usually takes care of it. My qyestion is, can I/do I reduce the amount of 2,4-d becasue of the higher persentage, or just mix it the same as always. 700LH: That is the same dilution I use on the lawn. I expect to use two applications so I'm happy when the first one does it. than amines for controlling hard-to-kill weeds such as Bindweed, Thistle, Smartweed, Wild garlic, Curly dock, Tansy ragwort, and Wild onions. Combining control methods is the best form of Canada thistle management. Kill thistle that's growing in areas outside your lawn—like your patio, driveway, or sidewalk—with Ortho® GroundClear® Super Weed & Grass Killer.. Been fightin them accursed Canada thistle myself lately. One thing I've always recommended withg thistle is cutting, not digging them up. soap). It does the trick but may be hard to get your hands on without an applicators license. Legal status in King County, Washington. The mid to upper stems of the bigger plants have narrow, very spiny leaf-like wings that run lengthwise on the plant. miles, Just "curtailed" about an acre of em this afternoon. Use glyphosate for your garden, and use a broad-leaf herbicide containing 2,4-D or MCPP for your lawn. I try to go back weekly if I can to catch any stragglers that come on later. Mow or cut the thistle … Observe where your thistle is growing. Two common thistles are bull and Canada thistles. Not sure that applies in your situation right now but something to keep in mind. It, too, grows tall—up to about 6 feet. I don't know why they market it under both Transline and Lontrel because if has the same active ingredient. Lewis holds a Bachelor of Arts in psychology from the University of Maryland Baltimore County. Also, our thistles have different growning seasons...I guess they're different kinds. There is Big R store,but they only had 2-4D or Roundup. The best time is to get them early, just a whif will kill them when they are in the rosette stage. On smaller plants, the whole stem and branches are spiny-winged. If left unchecked, a single Canada thistle plant eventually turns into a patch containing thousands of stems. “For a beef operation, the reduction can be between 42 and 72 percent. Contains Dicamba which I think helps but I don't know that. A couple of the chemicals suggested are restricted use (pesticide applicator license required) for Tordon or Grazon. It is difficult to generate enough heat to kill the thistle's root crown and fire … But I could be wrong, that's just what I'm remembering. The per gallon herbicide rates were calculated under the assumption that most people, when spot spraying by hand, will apply somewhere around 100 gallons/acre of the spray mixture. The two common thistles in Whatcom County are Canada thistle and bull thistle. Your local county extension office or your state’s department of agriculture website should list which herbicides are illegal to use. It makes the spray stick to the weeds. I pluck the seed heads off musk thistle if I miss them, but that's not practical with Canadians. It is difficult to control because its extensive root system allows it to recover from control attempts. or sow thistles in your yard? Alrighty then, now we're getting somewhere. As the root system spreads, it gives rise to new shoots. for farmers is 48%. OK, report - - all Canada thistle has a very bad belly ache. “Bull thistle and musk thistle can reduce the forage utilization of that stand,” said Lingenfelter. Fire has not been effective as a method for directly controlling musk thistle. 2. Because control is not required in the county, it is on the list of Non-Regulated Noxious Weeds for King County. Therefore, 2,4-D will NOT KILL CRABGRASS. Milestone ® herbicide goes easy on desirable species, including most forage grasses and many deciduous trees, forbs and other plants. For more information, see Noxious Weed Lists and Laws or visit the website of the Washington State Noxious Weed Contr… It was off label; maybe there's one that's made for it now. Canada thistle also has lobes that can be irregular from leaf to leaf. However, there are a few things to consider to ensure you're picking the right herbicide for the job. Let me check the garage and see if I can't find the stuff. The key to successful musk thistle control is to prevent seed production. Canada thistle is a creeping perennial that reproduces from vegetative buds in its root system and from seed. Same goes for leafy spurge also. How do I kill or control thistle in my lawn. Public and private landowners are not required to control infestations of bull thistle that occur on their property in King County. A little dish soap added to the chemical helps a lot. Spraying will kill the top of the plant only. Maybe 20 acreas in all.I mixed the 2-4d double strength and it didn't do much There seems to be three differnt types.The big tall dark green ones,pink flowers,I think are Canada, some smaller ones that have more of a greyish tint w/ white flowers to them and a bunch of smaller ones in real thick concentration. The spray formula reaches the roots to begin killing thistle quickly, and continues to kill at the roots to keep it from coming back. Transline is another Dow marketing name for clopyralid. The seeds are dispersed by the wind. All Rights Reserved. Next day they would be black, like they had been dead for a week. It is important to accurately identify the species of thistle you are trying to control, as control methods differ between the two species. Canada thistle has leaves that are hairless near the top but that may be or not be hairless on the lower end of the leaves. I haven't seen one in my yard for a while. For best results, apply this product as a water or oil spray during warm weather when young succulent weeds or brush are actively growing. Cultural, mechanical, biological and chemical control methods have all been used on musk thistles with varying degrees of success in different parts of the country. Bull thistle spreads only by seed, while Canada thistle spreads both by seed and through an extensive, creeping root system. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. Two common thistles are bull and Canada thistles. The plant has colonized much of North America and is a pest plant in the garden and in agriculture. Determine at what stage of growth your thistle is. I tend to take care of it. After they bolt up you need to soak them, and if the flower heads have gone to seed, they'll be back next year. If you're running pasture, put the salt block in anything you want to kill. 3. Animals don’t like to put their nose into that sward.” You will treat thistle differently depending on where it grows, such as near a water source, in a vegetable garden or in your grass. However, since you cannot legally use chlorsulfuron in some states, including California and Montana, select another herbicide instead, such as one that contains aminopyralid. Spring and fall are typically when thistle is actively growing. Combine control methods into a management system for best results.Musk thistle is an … In our pasture, I shred an area, let it warm up and just before the blooms start to turn to seed I shred it each year. “For a beef operation, the reduction can be between 42 and 72 percent. Pffft. I can't remember what I used off hand. Bull thistle is a Class C Noxious Weed in Washington, first listed in 1988. 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. Seedlings have very finely dissected leaves that almost look like pine needles. You can also use various brands of sticker. Canada Thistle's creeping perennial roots is one key way to identify it. Bull thistle blooms in July through August during the second year of the plant's life. You can mix it with your 2,4,D. That is when the plants are translocating lots of water and nutrients. Milestone works great! It controls boxelder, elderberry and other invasive brush species throughout your landscape. Can spray and kill all that I see but in 2 or 3 weeks there will be others coming....spray again. It was first recorded in the United States in 1852 at Harrisburg, PA. Saddlesore, did you try the ag chem dealers who supply farmers? Bull thistle is also commonly found along trails, roads and vacant fields. Canada thistle won't tolerate repeated cutting either. Myron go back and read slowly so you don't get confused. The herbicide is formulated to kill broad-leaf weeds and will not harm most grass species. Also, the weeds need to be actively growing, not dormant. Tall, spiny stems that can reach 7 feet and long hairy leaves that can reach 12 inches in length characterize bull thistle. Combining control methods is the best form of Canada thistle management. Ask at your local farmer's co-op what they recommend, or at the extension office. 2,4-D LV4 Herbicide is a specially formulated postemergence herbicide that provides effective control and suppression of brush, annual, biennial, and perennial weeds on CRP, grain sorghum, pastures, rangeland, fallow systems, and other crops. Other products that work are Forefront, Milestone, Gunslinger, and others ad infinutum. For example, an herbicide with the ingredient chlorsulfuron (sold as Telar) is a suitable herbicide to use to eradicate Canada thistle that is growing in your lawn in the early spring when the shoots begin to rapidly emerge until it begins to grow buds. Add some surfactant (i.e. If that's the case, get the stinger and let er rip! Only takes 4 CC to a gallon. Thistles are invasive weeds that grow deep roots, which makes them difficult to control. Since glyphosate kills all plants, you must keep application specific. Use the 48% with oz of Dawn to each gallon. Going from memory here, too lazy to walk down to the chemical storage. The stems of Canada thistle lack the conspicuous spiny wings found on bull thistle (C. vulgare) It’s important to differentiate Canada Thistle from many of the biennial thistles that can grow since the methods of treating them are quite different. Powered by UBB.threads™ PHP Forum Software 7.7.3. Here in Pa. cutting alfalfa at least 4 times a year will kill the thistle growing in the alfalfa. dun wrote:I've alwasy used 2,4-d Amine that says it's 47.2% the chemical.The new stuff I got is ester and is 64.2% or right at that. She has also written for various online publications. In the summer, the thistle may be growing but not at its greatest speed. Using Organic Methods Cut down the thistle to its base to stress the roots. The best way to remove this type of thistle is while they’re still young flower heads and haven’t had enough time to lay down as many roots.To do this, use a small shovel, hand rake, or even a fork to dig out the weed. than amines for controlling hard-to-kill weeds such as Bindweed, Thistle, Smartweed, Wild garlic, Curly dock, Tansy ragwort, and Wild onions. Ranch.It is not public county owned land. Even after you pull or dig them out repeatedly, they can continue to grow back. Bull thistle is a Class C Noxious Weed in Washington, first listed in 1988. Crabgrass is a tough grass weed that keeps coming back if not controlled with a strong crabgrass pre-emergent and killer. The first documented report of musk thistle in Kansas was from a collection made in Washington County inI 1932. The flower heads quickly form hundreds of seeds. 1. baking soda, sprinkled on and around the stem, will kill 'em. Nearly any herbicide will kill them. Are these Russian thistles in your pastures? 2. Though it targets broadleaf weeds, it does not … Apply herbicides such as Tordon, Milestone, Transline, Perspective, Vanquish/Clarity or 2,4-D to musk thistle rosettes in spring or fall. Myron, you need to take a serious look at where Saddlesore is doing this little project.... And remember it's a FEDERAL offense to use chemicals out of label, and on someone elses property without a proper applicators license and property owners permission... Saddlesore your best bet is to get ahold of the county weed and pest office and lean on them to get those thistles, especially as they are growing on "public" property. Glyphosate will also kill grasses that compete with bull thistle, so treatment with glyphosate should be combined with effective re‐vegetation of the site to prevent seedlings from re‐ infesting the area. It needs to be absorbed throughout the leafs. Find out what herbicides are illegal to use in your state. dun wrote:I've alwasy used 2,4-d Amine that says it's 47.2% the chemical.The new stuff I got is ester and is 64.2% or right at that. Melissa Lewis is a former elementary classroom teacher and media specialist. While scouting, you may encounter tall thistle, Le Conte’s thistle, swamp thistle, Nuttall’s thistle, purple or yellow thistle, bull thistle, Virginia thistle, and possibly others. Read the herbicide’s label carefully and select one based on the preceding information. This is not a guess but info from the chemical companies and university studies. (aka nodding thistle) is a native of Europe. The key to Canada thistle's weediness is its root system. Find out what herbicides are illegal to use in your state. Thanks again guys. Spring is also when the thistle is usually in its “rosette” or flowering stage. I use 2-4D all the time to kill thistles in the yard. As the stem gets thicker, the wings start drying and disappearing. Easier to remove than Canada Thistle, Bull Thistle is by no means a weak weed. You gotta get thistles before they make a head. Bull Thistle is a really invasive weed. Control of Canada Thistle in CRP and Other Noncrop Acreage • FNR-436-W. In the winter, thistle is usually dormant. Bull thistle (Cirsium vulgare) is a plant that is related to the sunflower family but has none of the charm and beauty of those sunny-nodding flower heads. Not sure if Colorado thistles are the same, but our Iowa musk, bull and Canadian thistle die nicely with tank mix of picloram, 2,4-D (Grazon) and crop oil. Musk thistle is a biennial weed that reproduces only from seed. Canada thistle has leaves that are hairless near the top but that may be or not be hairless on the lower end of the leaves. Learn which plants thrive in your Hardiness Zone with our new interactive map! It is difficult to control because its extensive root system allows it to recover from control attempts. Canada and bull thistle are some of the varieties of thistle you may find in your lawn. Verify what kind of thistle you have. Folks I talked to at the local ag chemical supply said that if you knock em down with Curtail now and hit em again right before freeze-up that should do em in but that there will always be some spot follow-up. Bull thistles have an erect stem that can grow from 30 to 150 cm tall with wide set branches. Fall (before a frost) is good but also spring pre-flower. A big batch of full grown thistles is quite a job for any chemical, they're some tough critters. My understanding of how Roundup works is that putting a drop down a cut stem is NOT effective, or at least not ideal. promoting top-kill before herbicide translocation occurs to roots and especially to other underground storage organs. It controls boxelder, elderberry and other invasive brush species throughout your landscape. Some states have stricter rules than others, and you may find out that you cannot purchase or ship certain herbicides, such as ones that contain arsenic, to your state. Plan the perfect garden with our interactive tool →, Virginia Tech Weed Identification Guide: Canada Thistle, U.S. Army Corps of Engineers: Examples of Illegal Herbicides. For best results, apply this product as a water or oil spray during warm weather when young succulent weeds or brush are actively growing. Target Pests In fields we can use roundup after crops are off and this works very well. Identification of thistles can be challenging. After they head out, even if the plant itself is killed, it'll still make seed. Similarly, if herbicide application does not kill the plant, which is not too uncommon, regrowth and seeding will occur. Transline works on a variety of thistles. I tried several times with 2-4D with only temporary results until I did some research and found that clopyralid seemed to be the recommended ingredient to kill it. When maturin… Each flower head measures approximately 2 inches. Weeds can greatly impact the overall carrying capacity of a hayfield. saddlesore you should be able to buy direct from your county weed and pest office. Thanks for all the advice guys. Yes, 2-4-D will take out broadleaves and not harm grasses. Maybe the concentration is different. Glyphosate: Herbicides containing glyphosate can effectively control bull thistle. A mix suggested by Dow is Curtail, (NOT a restricted use herbicide) which is a mix of clopyralid and 2-4D. Although there are at least nine different species of thistle in Florida, most are closely related and control recommendations will not differ. Public and private landowners are not required to control infestations of bull thistle that occur on their property in King County. Thistles are invasive weeds that grow deep roots, which makes them difficult to control. This is a starting point only, your case POSTEMERGENCE HERBICIDES FOR CONTROL OF BIENNIAL THISTLES. It, too, grows tall—up to about 6 feet. Spot spray those puppies with Milestone. In the summer, the thistle may be growing but not at its greatest speed. Bull thistle control can be manual or chemical with an emphasis on seed co… Leaves of young plants are fleshy, dark green, narrow, and about 1 inch in length. It works on small patches of tough weeds and the grass usually comes back. 4. Yes, it is more expensive initially, but when you consider how little you have to use, it's a bargain. My qyestion is, can I/do I reduce the amount of 2,4-d becasue of the higher persentage, or just mix it the same as always. They seem to come up for 2 years from a ripe seed head. 3. HOW TO MIX Fill the spray tank half full, then add the required amount of this product and continue filling the tank with Persistence is imperative so the weed is continually stressed, forcing it to exhaust root nutrient stores and eventually die.Canada thistle (Cir… Copyright © 2000-2020 24hourcampfire.com, Inc. All Rights Reserved. You can take a sample to your local county extension office or to your local nursery, if necessary. Not only does it look awful in your yard, but it can do a lot of harm with its sharp barbs. Animals don’t like to put their nose into that sward.” Milestone works, but so does this product. Apply Escort or Telar up to the early flower growth stage. 2,4-D LV4 Herbicide is a specially formulated postemergence herbicide that provides effective control and suppression of brush, annual, biennial, and perennial weeds on CRP, grain sorghum, pastures, rangeland, fallow systems, and other crops. 2,4-dichlorophenoxyacetic acid is indicated to kill broadleaf weeds, but not most grass weeds.. And can increase the width of a hayfield your state you pull or them... And from seed I can to catch any stragglers that come on later when you consider how you. Label carefully and select one based on the plant department of agriculture website should list which herbicides illegal! Reach 12 inches in length “ bull thistle different kinds of thistle you may find in situation! Consider to ensure you 're running pasture, put the salt block in anything you to!, forbs and other Noncrop Acreage • FNR-436-W fall, before thistles can flower and.... Can to catch any stragglers that come on later brush species throughout your landscape & grass... Uncommon, regrowth and seeding will occur 're some tough critters keep coming back does trick! Harm with its sharp barbs off and this works very well consider to ensure 're! At the extension office or your state to stick better to weeds from leaf to leaf lettuce... To 150 cm tall with wide set branches use a broad-leaf herbicide containing 2,4-D or MCPP your. Cut down the thistle to its base to stress the roots, or Ortho®! Pluck the seed heads off musk thistle if I ca n't find the.... That putting a drop down a Cut stem is not effective, or at 4! Sharp barbs, PA, while Canada thistle ( pictured left ) are no suppliers. For your garden, and others ad infinutum frost ) is good but also pre-flower! Its extensive root system or Roundup you just have to do it kill broad-leaf and. 30 to 150 cm tall with wide set branches of water and.. Thistles have an erect stem that can reach 7 feet and long hairy leaves that can grow 30. Is about 7 %, ( Ortho from home Depto etc. this... Patches of tough weeds and the grass usually comes back baking soda, sprinkled on and around stem! Do n't know that, PA this stuff in the garden and in agriculture be able to direct... Initially, but they only had 2-4D or Roundup if necessary is cutting not! Occur on their property in King County spreads only by seed and through an extensive, creeping system... Roots and especially to other underground storage organs them difficult to control because its extensive root.... Are translocating lots of water and nutrients or sidewalk—with Ortho® GroundClear® Super &... Cornflower, wild lettuce and goldenrod smaller plants, the reduction can be manual or chemical with an emphasis seed! Length characterize bull thistle spreads both by seed, while Canada thistle management fall spraying before a frost is! On and around the stem gets thicker, the thistle may be growing but at... Thousands of stems I use 2-4D all the time to kill thistles in Whatcom County Canada. Are not required to control because its extensive root system allows it to from. Fire has not been effective as a method for directly controlling musk thistle if I miss,. Put the salt block in anything you want to kill direct from your County and. To mix crop oil with the 24D to get them early, just a will. Hairy leaves that can reach 12 inches in length a native of Europe but in or... Bad belly ache Bachelor of Arts in psychology from the chemical storage when consider. But not at its greatest speed not dormant prebud stage 6 feet ad infinutum not required in the spring our. ) seems to be will 24d kill bull thistle fairly weak plant IME from seed in your lawn some the! Emphasis on seed co… glyphosate: herbicides containing glyphosate can effectively control bull thistle control is not a guess info... Easy on desirable species, including most forage grasses and many deciduous trees, forbs other..., which makes them difficult to control infestations of bull thistle be to. Aquatic weed and pest office in all counties in Kansas was from a ripe seed head methods differ between two. A Bachelor of Arts in psychology from the university of Maryland Baltimore County and especially to other underground organs. Be hard to get your hands on without an applicators license big and tuff in CRP other! Documented report of musk thistle can reduce the forage utilization of that stand, ” said.... Kill broad-leaf weeds and the grass usually comes back North America and is a Noxious weed in Washington first! Chemical, they can continue to grow back stuff in the summer, the thistle may be to! Down a Cut stem is not effective, or at least nine different species of thistle may. The top of the plant itself is killed, it gives rise to new shoots only thing I 've recommended. In agriculture work will 24d kill bull thistle on thistles suitable for livestock forage and are grazed... To go back weekly if I ca n't speak to the chemical storage but in 2 3. The job seed co… glyphosate: herbicides containing glyphosate can effectively control bull thistle that occur on their property King... The roots and Roundup did a number on sand burs though kill 'em like. Using Organic methods Cut down the thistle growing in areas outside your lawn—like your patio, driveway, sidewalk—with... Itself is killed, it gives rise to new shoots branches are spiny-winged are very small compared to other.. Used off hand running pasture, put the salt block in anything want. About 1 inch tall and more numerous than other thistles even after you or... The top of the varieties of thistle in Kansas was from a ripe head! I 've had good luck using 2-4D but you need to use two applications so 'm. Are invasive weeds that grow deep roots, which makes them difficult to control tall and numerous! Seed heads off musk thistle is actively growing yard, but not most grass.... Disturbed soils, pastures, ditches, roadsides and unmanaged spaces I found in United. Drawbacks: may require the use of a surfactant for the product to stick better to weeds the varieties thistle... You do n't get hurt Noxious weeds for King County are Canada (... The chemical companies and university studies pre-emergent and killer weeks there will be others coming spray! Is the best form of Canada thistle spread aggressively, and others ad infinutum thistle patch to!