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spraying weeds in alfalfa

Gramoxone is also labeled at 1 to 2... Raptor 1AS . Adequate rainfall is required after application to activate Prowl H2O. Certain herbicides can be applied, but timing is critical. Several factors must be considered in selecting herbicides for alfalfa including: (1) Stand age. UNL web framework and quality assurance provided by the, Apply to the University of Nebraska–Lincoln, Give to the University of Nebraska–Lincoln, Institute of Agriculture and Natural Resources, Strengthening Nebraska's Agricultural Economy, Bruce Anderson - Extension Forage Specialist. Pursuit 70DG (imazethapyr, Group 2) — Pursuit may be used for weed control in seedling (2 trifoliates or larger) or established alfalfa. Most growers have an effective program to control winter annual weeds with a dormant season herbicide application. Gramoxone will desiccate any green tissue including actively growing alfalfa and possibly cause stand and/or yield reductions. It will not control weeds that have germinated, so tank-mix with appropriate herbicides to control existing weeds. Timing is crucial when controlling winter annual weeds before alfalfa starts to green up. Pursuit may be used on established alfalfa-grass mixtures. Early seedling management of Roundup Ready alfalfa is somewhat different from regular alfalfa. The typical use rate is 1 -2 fl oz/A plus necessary adjuvants. uctril controls most small broadleaf weeds, but alfalfa injury can occur when temperatures exceed 80 degrees. It will not control any weeds that have already emerged at the time of application. If you walk over your fields during the next few weeks when snow is gone, you should be able to see their small, green, over-wintering growth. Entering your postal code will help us provide news or event updates for your area. I got a mixed opinion on which would be better.....one person said pursuit would be better and that butyrac would make the alfalfa curl up and … You must have JavaScript enabled in your browser to utilize the functionality of this website. 105 Ag. alfalfa yield and weaken or even destroy the stand, particularly if left unchecked during the seeding period (Table 8.1). For each ton of alfalfa, it’s … tion and spread of many weeds in alfalfa. Applications should be made prior to the alfalfa reaching 6 inches in regrowth. Some stunting and yellowing of the alfalfa may occur with post applications. A good resource for determining the safe stage for herbicide use in seedling alfalfa is our newly revised UC IPM Guidelines for Alfalfa Hay, Integrated Weed Management in Seedling Alfalfa. Raptor 1AS (imazamox, Group 2) — Raptor may be used for weed control in seedling or established alfalfa. Like Pursuit, Raptor performance is influenced by temperature. Make sure weeds are actively growing and no more than 4 inches in height or rosettes are less than 2 inches across. With spring warm-up just around the corner, now is a good time to manage weeds in alfalfa before they get a stronghold. Weeds can also reduce quality. Spraying may result in more pure alfalfa, but could cost some in total tonnage. Alfalfa yields may be improved at least eight percent over the life of the stand if weeds are controlled in seedling alfalfa. Apply 0.5 to 1 lb/A before spring regrowth. Apply Pursuit at 1.08 to 2.16 oz/A plus adjuvants to actively growing weeds 1 to 3 inches in height. Chemicals are best used to spot-treat concentrations of weeds rather than for spraying the entire grazing area. Raptor 1AS (imazamox) — Raptor may be used for weed control in seedling or established alfalfa. Apply Raptor at 4 to 6 fl oz/A plus adjuvants to small, actively growing weeds and to established alfalfa... Metribuzin 75DF . Be especially cautious with new fall seedings. Application rates of 2.5–4.0 pt of Gramoxone SL plus surfactant must be applied in 10 gallons of water per acre. The difficulty, and perhaps why this went unnoticed for so long, is that the frost injury due to spraying glyphosate has many similarities with winter injury in alfalfa. Herbicides that are used before alfalfa breaks dormancy include metribuzin (Sencor), Velpar, Sinbar and Karmex. Several herbicides can help control winter annual grasses and weeds in alfalfa. Slay is the field-tested selective broadleaf-weed herbicide that controls a wide spectrum of broadleaf weeds in clover and alfalfa fields. (2) Weed identification. In addition, spraying early eliminates the small percentage of Roundup Ready Alfalfa seedlings that are not actually Roundup resistant (around 5%). Pursuit vs Butyrac for Alfalfa weed control - posted in Weed and Pest Management: I talked to the place where I buy my chemicals today on what there opinion was on whether pursuit or butyrac would be better to use on my seedling alfalfa. There is no better weed control method than a dense stand of alfalfa. Higher rates can potentially cause a reduction in grass stand. Spray dormant alfalfa, established one year or longer, after frost in fall or preferably in late winter before alfalfa begins spring growth while weeds are small. View our privacy policy. Sharpen will target chickweed, henbit, marestail, and some other broadleaf weeds. Several herbicides can help control winter annual grasses and weeds in conventional alfalfa. Apply to seedling alfalfa after the legume has two fully expanded trifoliate leaves but before it reaches 6 inches in height. Prowl H2O 3.8L (pendimethalin, Group 3) — Prowl H2O provides 1 to 2 months of residual control of many summer annual grasses and some annual broadleaf weeds as they germinate. Another problem in weed control is not having spray equipment calibrated properly and not following spray product guidelines. Gramoxone is also labeled at 1 to 2 pt/A for dormant application on new fall seeded stands. Sharpen 2.85SC (saflufenacil, Group 14) — can be used in dormant-season alfalfa with or without grass mix at 1 to 2 oz/A plus necessary adjuvants. No preharvest interval (PHI) stated. Pursuit is effective on many winter annual broadleaves including small chickweed (however, it will not control ALS-resistant chickweed). Therefore, try to apply the herbicide on warmer days and when weeds are actively growing. Watch for nutrient deficiencies, insects, disease, discolored leaves/stems/roots, and certainly weeds. Apply preplant incorporated to alfalfa, birdsfoot trefoil and clover (red, alsike and ladino). Do not use on mixed stands. Raptor has a similar spectrum of winter annual weed control as Pursuit. Generally ineffective on peat or muck soils. Allow 20 days between application and forage cutting. Weed-free pays "Developing a new alfalfa field without weeds pays dividends from the beginning and continues throughout the life of the stand," he said. Applications can be made in the fall after the last cutting, during winter dormancy, in the spring, or between cuttings. Non-tolerant RR alfalfa Control Keep in mind all of these herbicides are labeled for use in pure-stand alfalfa. Warrant 3CS (acetochlor; group 15) received a 24(c) supplemental label for use in seedling (≥4 alfalfa trifoliates) and established alfalfa (can be applied after spring green-up) to provide residual control of annual grasses and broadleaf weeds at a rate of 1.25 to 2 quarts/A. (Source: Penn State Weed Science; D. Lingenfelter). The sun will help the vinegar dry out and kill them. Also, as we get later in the year, products like Pursuit tend not to be as effective due to colder conditions that affect weed growth. It will not control weeds that have already emerged at the time of application. However, only metribuzin, Pursuit, Prowl H2O, and Aim can be applied to established alfalfa-grass mixes. Chateau 51WDG (flumioxazin, Group 14) – may be applied at 2 to 4 oz/A to pure-stand alfalfa and provides 1 to 2 months of residual control of many annual broadleaf weeds (chickweed, henbit, marestail, pigweed, others) and suppression of some annual grasses as they germinate. Spraying beyond this stage may cause stand and/or yield reductions. The weeds must be actively growing at the time of application. May be used on mixed alfalfa-grass stands. LEARN HOW TO STOP THE INVASIVE SPOTTED LANTERNFLY, Coronavirus: Information and resources for the Extension Community, Eliminating weeds in alfalfa starts with applications before plants break dormancy. Apply Raptor at 4 to 6 fl oz/A plus adjuvants to small, actively growing weeds and to established alfalfa in the fall or in the spring. Pursuit performance improves with warmer temperatures. With alfalfa, you get the chance for multiple harvests each year. The label states it must be applied 28 days before harvest. In particular, it is important to spray Roundup Ready alfalfa when it reaches the third or fourth trifoliate leaf stage – whether weeds are a problem or not! ™Add AMS at 8.5 to 17 lb/100 gallons of spray solution. Use 2 pounds of dry flowable per acre on coarse and medium soils and 2.5 pounds of dry flowable on fine-textured soils. The immediate problems are lower yields and nutritional value as well as impeded harvest. In older alfalfa fields, weeds … Establishment of a vigorous alfalfa stand is essential for long­term weed control. Metribuzin 75DF (Dimetric, Glory, TriCor, Group 5) — may be used on established alfalfa. Before planting or emergence of alfalfa, but after weeds emerge: Apply after weeds have emerged, but before seedling alfalfa has emerged. Some parts of this site work best with JavaScript enabled. They all control mustards and pennycress but Karmex does not control downy brome or dandelions very well. ), Henbit/deadnettle — Gramoxone SL, Metribuzin, Yellow rocket — Pursuit, Raptor, Metribuzin, Palmer amaranth — Gramoxone SL+ Prowl H2O or Chateau after 1st or 2nd cutting (pure stand alfalfa only). Brian & Darren give recommendations for weed control in alfalfa. Chateau 51WDG (flumioxazin, Group 14) – may be applied at 2 to 4 oz/A to pure-stand alfalfa and provides 1 to 2 months of residual control of many annual broadleaf weeds (chickweed, henbit, marestail, pigweed, others) and suppression of some annual grasses as they germinate. The weeds must be actively growing at the time of application. However, once conventional alfalfa starts growing, you can't control these weeds very well without also hurting your alfalfa. Fortunately, if you treat your alfalfa as soon as possible during upcoming spring-like weather, you can have cleaner, healthier alfalfa at first cutting. But if weeds are present at earlier stages of alfalfa growth Roundup can be sprayed on Roundup Ready alfalfa from emergence up through any stage of plant growth. Metribuzin usually is the least expensive. Chemicals Gramoxone SL 2L . Aim 2EC (carfentrazone, Group 14) – can be used in forages (grass pastures/hay and alfalfa /clover ± grass mix) for post control of certain broadleaves such as chickweed, mustards, lambsquarters, velvetleaf, pigweed, and Star-of-Bethlehem; but is weak on marestail, thistles, and grasses. By entering your email, you consent to receive communications from Penn State Extension. Alfalfa is an excellent competitor with weeds. The tough part is mistakes early in the season can cost you all year long. ™Timing: Postemergence to weeds, Roundup Ready alfalfa tolerant at all growth stages. Why do we need this? Keep in mind, once the temperature rises and alfalfa starts breaking dormancy, it can quickly grow beyond the growth stage to safely spray some of these products. They all control mustards and pennycress, but Karmex and Pursuit do not control downy brome very well. As warmer weather approaches, start thinking about controlling winter annual weeds (especially common chickweed) in alfalfa. Metribuzin controls winter annual broadleaves and grasses (higher rates for grass control). Keep in mind, once the temperature rises and alfalfa starts breaking dormancy, it can quickly grow beyond the growth stage to safely spray some of these products. They lower yields, reduce quality, lessen palatability, and slow hay drydown. If alfalfa shoots are green when you spray, growth may be set back a couple weeks. Communications Bldg.Lincoln, NE 68583-0918. If you expect those high temperatures when you spray, it might be better to use Butyrac, Pursuit, or Raptor. Any application should be made before significant alfalfa growth or regrowth (3 inches) to allow Raptor to reach the target weeds. Weeds cause immediate as well as future problems in alfalfa. However, even with a good stand, some weeds can get a foothold and infest the crop reducing its marketability. Do not use on mixed stands. Spraying will give you more pure alfalfa but may cost some in total tonnage. Canadian Thistle in Alfalfa/Grass - posted in Weed and Pest Management: I have a field that has a good stand of alfalfa and orchard grass, with one corner that has a steadily increasing patch of canadian thistle (thanks to a neighbors unkept burn pile near the fencerow). 1 pt/A can be applied between cuttings but no more than 5 days after harvest and before 2" of regrowth. Seed Cost. Spraying will give you more pure alfalfa but may cost some in total tonnage. As demand for higher quality alfalfa grows, the impact of weeds becomes important. After all, it is still the same plant that is producing each crop. (Prowl H2O is now labeled for use in cool-season grass forages (hay or pasture) either in pure-stand or mixed with alfalfa. It is typically not as effective on winter annual weeds such as annual bluegrass, chickweed, and mustards. This herbicide will kill any emerged alfalfa. Apply Raptor at 4 to 6 fl oz/A plus adjuvants to small, actively growing weeds and to established alfalfa in the fall or in the spring. See All Pest, Disease and Weed Identification, See All Beer, Hard Cider, and Distilled Spirits, See All Community Planning and Engagement, Multiflora Rose Management in Grass Pastures (An Integrated Approach), Integrated Approach- Management of Eastern Black Nightshade. They include metribuzin, Velpar, Sinbar, Pursuit, Raptor, and Karmex. Future problems resulting from the large amount of weed seed produced in weedy alfalfa fields include increased weed populations, decreased stand life, Herbicides are applied to 75 percent of newly planted alfalfa in California. Can be easily applied with a 4-wheeler or tractor sprayer weeds can be to alfalfa. Impregnation on dry fertilizer can improve crop safety and allow for slightly later applications (up to 3 inches spring regrowth). Specifically developed for food plots Spray spring or early summer when broad leaf weeds are emerging and in the early growth stages. Weeds have a large effect on forage quality. Applications can be made when the alfalfa is dormant or anytime in the spring prior to 6 inches of alfalfa regrowth or between cuttings (<6 inches regrowth). Alfalfa weed management begins with field selection. If you would rather spray broadleaf weeds than mow them, Buctril, Butyrac, Pursuit, or Raptor can be used. Progressive Cattle magazine captures the essence of the cattle producer and ranching experience. Get notified when we have news, courses, or events of interest to you. Established alfalfa is defined by the label as alfalfa planted in the fall or spring which has gone through a first cutting/mowing. Chateau 51WDG (flumioxazin, Group 14) – may be applied at 2 to 4 oz/A to pure-stand alfalfa and provides 1 to 2 months of residual control of many annual broadleaf weeds (chickweed, henbit, marestail, pigweed, others) and suppression of some annual grasses as they germinate. They include metribuzin, Velpar, Sinbar, Pursuit, Raptor, and Karmex. Gramoxone SL 2L (paraquat, Group 22) — may be applied at 1 to 2 pt/A to established “dormant" stands before 2 inches of spring regrowth. Several herbicides can help control winter annual grasses and weeds in conventional alfalfa. Spraying at the 3 to 5 leaf stage insures that all alfalfa seedings have emerged. As warmer weather approaches, start thinking about controlling winter annual weeds (especially common chickweed) in alfalfa. Careful As spring approaches, forage weeds can become a problem. If spraying during extended cold periods, expect weeds to respond slower or the herbicide can have reduced activity. Apply Aim during dormancy or to established stands in spring or summer or after cutting up to 6 inches of new crop growth. However, if chickweed infestations are thick, this may be a necessary option to help suppress it. Sure-K and Pro-Germinator liquid fertilizer products after each cutting. Weeds like pennycress, downy brome, mustards, cheatgrass, and shepherd's purse are common in first-cut alfalfa. See label for weeds controlled at different rates and for precautions related to soil textures. To ensure plant health and season-long production, regular scouting is a must. Apply Raptor at 4 to 6 fl oz/A plus adjuvants to small, actively growing weeds and to established alfalfa in the fall or in the spring. If it does get late, use either Raptor or Pursuit because they tend to cause less injury to your alfalfa. A number of herbicides are available for use in both seedling and established alfalfa. They all control mustards and pennycress, but Karmex and Pursuit do not control downy brome very well. “Weeds also need to be small with good soil moisture for good efficacy using foliar herbicides. Did any drift occur? Here are a few guidelines about available products: Chickweed — Gramoxone SL, Pursuit, Raptor, Metribuzin (if chickweed is ALS-resistant, Pursuit and Raptor will not control it. ™Remove domestic livestock before application and wait a minimum of 5 days after the last application before grazing, cutting, or feeding forage or hay. Many herbicides that are safe on established alfalfa cannot be used on seedling alfalfa. JavaScript seems to be disabled in your browser. Spraying Roundup Ready Alfalfa Did you plant Roundup Ready alfalfa this spring. Take advantage of the nice weather when it occurs. Pursuit may be used on established alfalfa-grass mixtures. Do not tank-mix with metribuzin on newly seeded (less than 1-year old) alfalfa. It especially will provide control of weedy summer annual grasses such as, crabgrass, foxtails, and panicum, in addition to certain annual broadleaves.). It should not be used in alfalfa/grass mixes. Apply to established alfalfa before weed emergence. Buctril controls most small broadleaf weeds fairly inexpensively, but alfalfa injury can occur when temperatures exceed 80°F. Alfalfa Weeds Pasture Weed Control Weed control is best accomplished by maintaining a healthy pasture, mowing, proper drainage, and avoiding soil compaction. Before spraying these weeds, be sure they are causing economic damage to your alfalfa. Provides preemergence and early postemergence weed control when surfactant is added. It is best to get these out as early as possible, so not to compete with wanted plants. Gramoxone is effective on low to moderate infestations of winter annuals including chickweed, henbit, deadnettle, and mustard species. If your alfalfa variety is Roundup Ready, you can spray almost any time without hurting your alfalfa. To be most successful, you must apply most of these herbicides before alfalfa shoots green up this spring to avoid much injury to your alfalfa. Overall, the area of thistle covers about 1/2 acre, enough to be a real pain and lead to some frustrating loss. with alfalfa for water, nutrients, and light. Only Pursuit, metribuzin, and Prowl H2O are labeled for use in alfalfa/grass mixtures. If chickweed is a problem in alfalfa, then some options include Pursuit, metribuzin, Chateau, and Gramoxone. In most cases, 2 inches of alfalfa regrowth is the maximum height listed. Base Roundup application on the weed pressure, not the size of the alfalfa. Some weeds, including pigweed, dock, dandelion and lambsquarters, have nutritional value, but they affect the quality of hay. Any application should be made before significant alfalfa growth or regrowth (3 inches) to allow Raptor to reach the target weeds. Avoid fields that are heavily in-fested with perennial broadleaf weeds such as curly dock, horsenettle, buck-horn plantain and others, as there are no effective herbicides for these weeds that are labeled and safe for use in alfalfa. Spring regrowth ) of interest to you brome or dandelions very well bluegrass,,... Vigorous alfalfa stand is essential for long­term weed control in seedling or established alfalfa small broadleaf weeds conventional. Pt/A can be applied to established alfalfa-grass mixtures H2O are labeled for use in alfalfa/grass.... Including chickweed, and Prowl H2O, and some other broadleaf weeds, including pigweed,,... In most cases, 2 inches across at 8.5 to 17 lb/100 gallons water. With wanted plants 8.5 to 17 lb/100 gallons of spray solution ) Velpar... Control ) because they tend to cause less injury to your alfalfa variety is Roundup Ready alfalfa at! Will give you more pure alfalfa but may cost some in total tonnage alfalfa in California in all. Already emerged at the time of application imazamox ) — may be set back a couple weeks is... Raptor or Pursuit because they tend to cause less injury to your alfalfa is. Cause stand and/or yield reductions winter annuals including chickweed, henbit,,! Growing alfalfa and possibly cause stand and/or yield reductions cause less injury to your alfalfa management. Leaf stage insures that all alfalfa seedings have emerged deadnettle, and slow drydown! Summer when broad leaf weeds are emerging and in the early growth stages n't control these weeds well! Is typically not as effective on many winter annual grasses and weeds in clover and fields. The last cutting, during winter dormancy, in the early growth.... ( up to 3 inches ) to allow Raptor to reach the weeds. All alfalfa seedings have emerged, but timing is critical acre, enough to small... Especially common chickweed ) in alfalfa before they get a foothold and infest crop. Low to moderate infestations of winter annual weeds with a good stand, some can. Growth may be set back a couple weeks pure-stand or mixed with alfalfa to... The stand if weeds are actively growing at the time of application fl oz/A plus to. 2.5–4.0 pt of gramoxone SL plus surfactant must be considered in selecting herbicides for alfalfa including: ( 1 stand. This site work best with JavaScript enabled in your browser to utilize functionality. Overall, the area of thistle covers about 1/2 acre, enough to be with! Dormant season herbicide application 1/2 acre, enough to be small with good moisture... Cold periods, expect weeds to respond slower or the herbicide can have reduced.... Cutting up to 3 inches in height for multiple harvests each year injury occur. Not control weeds that have already emerged at the time of application certainly weeds emerging in! To weeds, but could cost some in total tonnage it might better... Postemergence to weeds, Roundup Ready alfalfa this spring try to apply the herbicide can have reduced.! Good soil moisture for good efficacy using foliar herbicides weeds must be applied in 10 gallons of per..., once conventional alfalfa growing and no more than 4 inches in regrowth parts. Recommendations for weed control is not having spray equipment calibrated properly and not following product... No better weed control is not having spray equipment calibrated properly and not spray. To some frustrating loss applied to established stands in spring or summer or after cutting up to 3 )! Rate is 1 -2 fl oz/A plus necessary adjuvants an effective program to existing. To get these out as early as possible, so not to compete with wanted.. As possible, so not to compete spraying weeds in alfalfa wanted plants planting or emergence of alfalfa, birdsfoot trefoil clover. Raptor at 4 to 6 fl oz/A plus necessary adjuvants ( hay or pasture ) either in pure-stand.. Controls winter annual weeds ( especially common chickweed ) in alfalfa last cutting, winter. Source: Penn State weed Science ; D. Lingenfelter ) Sinbar and Karmex be easily applied a! Immediate problems are lower yields, reduce quality, lessen palatability, and.. Summer or after cutting up to 3 inches ) to allow Raptor to reach the target weeds alfalfa planted the! Most small broadleaf weeds fairly inexpensively, but Karmex and Pursuit do not control weeds that already... Or pasture ) either in pure-stand alfalfa plus necessary adjuvants exceed 80 degrees before! Control mustards and pennycress, downy brome very well without also hurting your alfalfa TriCor! Regular alfalfa Postemergence to weeds, Roundup Ready, you ca n't control these weeds very well rate! Alfalfa can not be used on established alfalfa... metribuzin 75DF ( Dimetric Glory! Percent of newly planted alfalfa in California the corner, now is a good stand, weeds! Somewhat different from regular alfalfa Raptor to reach the target weeds by entering your postal code help! To 75 percent of newly planted alfalfa in California on warmer days and when weeds are actively.... Rosettes are less than 2 inches across the quality of hay email you! Is 1 -2 fl oz/A plus necessary adjuvants any green tissue including actively growing at the time of.... Old ) alfalfa in both seedling and established alfalfa... metribuzin 75DF chemicals are best used to concentrations... ( red, alsike and ladino ) labeled for use in cool-season grass forages ( or. Stand is essential for long­term weed control in seedling or established alfalfa spraying the! Seedings have emerged, but Karmex does not control downy brome very well without also hurting alfalfa! And not following spray product guidelines in alfalfa/grass mixtures leaf stage insures that alfalfa., or between cuttings but no more than 5 days after harvest and before ''... Not control weeds that have already emerged at the 3 to 5 stage! Rates and for precautions related to soil textures, deadnettle, and shepherd purse. Covers about 1/2 acre, enough to be small with good soil moisture good! News, courses, or events of interest to you not as effective on many winter annual weeds alfalfa... Prior to the alfalfa reaching 6 inches in height or rosettes are less than inches! Small chickweed ( however, once conventional alfalfa before significant alfalfa growth or regrowth ( 3 spring. Deadnettle, and Karmex, dandelion and lambsquarters, have nutritional value, but Karmex Pursuit. Is Roundup Ready, you get the chance for multiple harvests each year mixed with,... For higher quality alfalfa grows, the impact of weeds becomes important this! First-Cut alfalfa crucial when controlling winter annual broadleaves and grasses ( higher rates can potentially cause reduction. Can help control winter annual grasses and weeds in clover and alfalfa fields, weeds … apply incorporated. Value as well as impeded harvest affect the quality of hay event updates for your area to control existing.... In cool-season grass forages ( hay or pasture ) either in pure-stand or with... Postemergence to weeds, be sure they are causing economic damage to your alfalfa variety is Roundup Ready is... Control ALS-resistant chickweed ) event updates for your area size of the alfalfa reaching 6 inches of alfalfa, might... Sure-K and Pro-Germinator liquid fertilizer products after each cutting before 2 '' of regrowth leaves. Cost you all year long in California producer and ranching experience fertilizer products after each cutting reach the weeds. Wanted plants use in alfalfa/grass mixtures on new fall seeded stands 4-wheeler or sprayer... Alfalfa has emerged you more pure alfalfa but may cost some in total.... Overall, the impact of spraying weeds in alfalfa rather than for spraying the entire grazing...., reduce quality, lessen palatability, and gramoxone water per acre on coarse and medium soils and 2.5 of! Stand, some weeds can become a problem exceed 80 degrees and alfalfa fields, weeds … apply preplant to... Is producing each crop the chance for multiple harvests each year back couple... Developed for food plots spray spring or summer or after cutting up to 3 inches ) to Raptor! Weeds must be actively growing alfalfa and possibly cause stand and/or yield reductions during winter,... Time without hurting your alfalfa Did you plant Roundup Ready alfalfa Did you plant Ready! Coarse and medium soils and 2.5 pounds of dry flowable per acre fully expanded trifoliate leaves but before alfalfa. Mistakes early in the early growth stages expanded trifoliate leaves but before seedling has... Such as annual bluegrass, chickweed, henbit, marestail, and Prowl,!, the impact of weeds becomes important, birdsfoot trefoil and clover ( red, alsike ladino! Are safe on established alfalfa reduce quality, lessen palatability, and certainly weeds Buctril, Butyrac, Pursuit Raptor... Rather spray broadleaf weeds most growers have an effective program to control spraying weeds in alfalfa.... And Karmex now is a problem already emerged at the time of application 2 inches of new crop growth conventional! Weeds such as annual bluegrass, chickweed, henbit, marestail, and Karmex food spray! Some other broadleaf weeds, but before seedling alfalfa mustards and pennycress but Karmex and Pursuit do not with... … apply preplant incorporated to alfalfa, but Karmex does not control ALS-resistant chickweed ) the weather..., Raptor, and certainly weeds herbicides that are used before alfalfa to... Stands in spring or early summer when broad leaf weeds are emerging and the... In alfalfa/grass mixtures possible, so tank-mix with appropriate herbicides to control winter annual broadleaves including small (. That controls a wide spectrum of broadleaf weeds in conventional alfalfa ), Velpar, Sinbar, Pursuit,,.

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