The rate of herbicide applied and the timing of the herbicide application are other factors that influence the likelihood of herbicide carryover injury to wheat or other rotational crops. No. Applications before first cutting generally give the best results. Preharvest interval (PHI): Seven-day PHI before feeding, grazing or cutting for forage (undried), and 14-day PHI before cutting for hay (dried). The typical use rate is 1 -2 fl oz/A plus necessary adjuvants. sativa) Alfalfa, For Seed (Medicago sativa ssp. Supplemental label on AgriSolutions Trust formulation. This minimizes the amount of preemergence herbicide bound to leaf and stem surfaces and the loss of weed control this causes. 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. You may apply: Up to 5.3 quarts of 4.5 pounds of acid equivalent (ae) per gallon formulations per year, including any preplant burndown applications. non-ALS/AHAS materials). Do not use on vetch or sweet clover, which are very sensitive to MCPA. For the control of downy bromegrass and annual bluegrass, Arrow® or Select Max® can be used as a post-emergent application in seedling and established alfalfa. Aim None0 00 0 00 0 0 00 0 0 0 Anthem MAXX None 0 0 0 4/6* 11/18* 11/18* 11/18* 10 11 15 4 18 18 Anthem ATZNoneFS0 0 18 18 18 181818 1818 1818 Armezon/ImpactNone9 00 3 33 3 99/18* 189 18 18 Armezon PRONone9 00 4 44 4 9 918 9 18 18 Assure II/TargaNone0 44 4 44 4 4 00 4 4 4 Atrazine (1 lb a.i./A) None 10 0 0 3 21 21 3 15 21 21 10 21 21 Atrazine (2 lb a.i./A) None 18 0 0 15 21 21 15 21 21 33 … a.i./acre, 14 days after applications of 0.5 lb. Select/Arrow 2 EC applied postemergence will control annual grasses in seedling alfalfa, birdsfoot trefoil or sainfoin grown for forage or seed. Interseeded oat or suppression in oat-mulch systems is not mentioned on the Raptor label, but control of volunteer oat up to 3 inches in height or less is labeled. Question is why so many dandelions after these treatments and what can be used to rid of dandelions? Aim EC herbicide is a fast acting, non residual herbicide that tackles the toughest broadleaf weeds. HERBICIDE : COMMENTS: KERB 50-W r (pronamide) 1 to 3 lb product/A: Primarily used for control of cool-season grasses. For the first cutting, winter annuals can lower quality and palatability. The damage of dodder to the host plant varies from moderate to severe depending on the growth of the host plant and the number of haustoria attachments to the host plant. Use the higher rates when annual grass pressure is heavy or at the maximum height, or when perennial grasses are present. You can use the 2.25 pint rate on alfalfa for annual grass control. However, do not use except for rescue situations to control severe infestations of broadleaf weeds that threaten legume seedling survival. Usage Rate Recommendations : 0.5 - 2 Fl. The Roundup Ready® alfalfa system provides the opportunity to deliver unsurpassed weed control with superior crop safety, allowing you to grow more, higher-quality alfalfa to grow. It may be impregnated or applied in liquid fertilizer. Displaying 1-11 of 11 results. Do not add a surfactant or crop oil when underseeded with alfalfa. Oil adjuvant increases weed control. Restrictions on Grazing/Feeding/Haying of Crops Treated with Herbicides. It may be useful where late flushes of annual weeds occur, and for weeds where significant growth is below the cutting height. However, I have noticed that some type of grass seems to be migrating from my neighbors field into mine! Applications can be made up to the 2nd trifoliate stage for seedling alfalfa whereas established alfalfa application can take place before the alfalfa is 6” tall. Raptor herbicide for weed control in alfalfa. Depending on weed species, UAN or ammonium sulfate may also be needed (see label). Planting alfalfa in Minnesota in late summer 2019 can provide a crop with a well-developed root system that’s ready to harvest in early June 2020. Higher seeding rates than 1.5 bushels per acre can increase the protective mulch cover and compete more effectively with weeds in severe conditions. Butyrac 200 controls certain annual broadleaf weeds postemergence. There’s an estimated technology fee of approximately $30 to $40 per acre. For seedling alfalfa (2-trifoliate to six inches tall), apply Prowl H2O at 1.1 to 2.1 pints pt/A prior to weed emergence. It is highly toxic to bees exposed to direct treatment on alfalfa. Preharvest interval (PHI): Label states a 15-day PHI before grazing, feeding or harvesting (cutting) for forage or hay. It delivers excellent no-till burndown on a wide range of row and high-value specialty crops when tank mixed with a suitable partner product. However, in the context of novel trait confinement, the extent to which feral alfalfa populations need to be managed will be dictated by the tolerance levels established by specific production systems for specific traits. Herbicide Crop Time interval DAA = days after application WAA = Weeks after appl. In established alfalfa stands AIM® and Chateau® Herbicide SW are other options that could be used for post-emergent control only in established stands. Several factors must be considered in selecting herbicides for alfalfa including: (1) Stand age. Contact your professional crop advisor, local cooperative extension specialist, or Gowan Company representative for additional information. Remove livestock before application, and a five-day grazing reentry interval applies. Preharvest interval (PHI): 30-day PHI for in-crop applications (except for fall applications), 60-day PHI for fall applications and 70-day PHI for preplant burndown applications. Apply 1 to 3 quarts per acre when weeds are less than 3 inches in height. Wild oats and wild mustard generally are suppressed. Rotate with herbicides having different modes of action (e.g. - posted in Alfalfa/Hay: My alfalfa field is in its third year and has never been sprayed. This week I was asked about applying fungicides to alfalfa because of the wet weather pattern we are experiencing. 16 oz/acre … Beleaf 50SG Insecticide. It is most effective on broadleaf weeds and some grasses as a preemergence application. Here are some tips for growing a successful late … Trifluralin products are more economical and available than Balan and have a similar spectrum of weed control, but have slightly more injury potential than Balan. Extremes in environmental conditions such as temperature, moisture, soil conditions, and cultural practices may affect the activity of Aim EC. Rate: Up to 44 oz/A Roundup Original Max or WeatherMax in a single application, not to exceed a total 132 oz/A for in-crop treatments per year . This fast growth allows them to use nutrients and moisture before other plants have started to grow, and quickly mature and set seed. INTRODUCTION Weed control is important in alfalfa seed production in order to produce high quality seed and maximize yields. Alfalfa tends to re-grow more strongly than most … Summary: 2007 Herbicide Trial in Alfalfa Seed • Asulox – good alfalfa tolerance with 3 or 6 pt/A, ~80% control of mayweed. Similarly, no herbicides are labeled to remove broadleaf weeds in alfalfa that’s seeded with forage grasses. Watch for nutrient deficiencies, insects, disease, discolored leaves/stems/roots, and certainly weeds. Be aware of specific harvest restrictions associated with certain pesticides and always read and follow label instructions. Green and giant foxtail, barnyardgrass and fall panicum: Poast Plus is labeled at a reduced rate (18 fluid ounces), and Poast at 0.75 pints per acre for early application. Apply after small grain emergence and up to the boot stage; alfalfa should have a minimum of four trifoliolate leaves at application. Alfalfa Herbicide Timeline Pre 1970 1977-78 1980-84 1992-96 2000-04 Eptam Balan (’77) Velpar (’82) Prowl (’92) Sandea (’02) Butyrac Buctril (’78) Poast (’83) Pursuit (’93) Raptor (’02) Gramoxone Treflan TR-10 (’84) Select (’94) Chateau (’03) Metribuzin Solicam (’96) Prowl H 2 O (’04) Diuron Kerb Roundup Treflan Adapted from … Rate Up to 0.031 lb ai/a (2 fl oz/a Aim EC). Roundup Ready Alfalfa Seed quantities limited initially. Imazethapyr can be tank-mixed with 2,4-DB, bromoxynil, clethodim or sethoxydim. Herbicide Effectiveness on Weeds in Forage Alfalfa; Alfalfa Seed; Birdsfoot Trefoil; Clover Seed; Legumes (large-seeded) Dry Bean East of the Cascades - Phaseolus spp. More intense management of alfalfa often uses direct-seeding, sometimes called solo seeding. Time Apply during planting or up to 24 hours after potatoes have been planted. For … Management. To find out and quantify the effects of glyphosate (288 and 360 g a.i. Apply Aim during dormancy or to established stands … Eye on Crops: Aim to plant your late-summer alfalfa between July 30 and Aug. 15. Increasing the height when mowing can be a good strategy as well. Aim EC Herbicide is a fast acting, non residual herbicide that tackles the toughest broadleaf weeds like seedling kochia, lambsquarters, morningglory, hemp sesbania, pigweed, velvetleaf and waterhemp. Herbicide use is most effective when weeds are young and actively growing. Sequential applications must be at least seven days apart. Field dodder management … Mustang MAXX Insecticide . sativa) Almond (Prunus dulcis) Apple (Malus domestica) Apple, Custard (Annona reticulata) Apple, Sugar (Annona squamosa) Apricot (Prunus armeniaca) Aronia Berry (Aronia melanocarpa) … Apply prior to winter weed emergence (September–October) in the low … AIM® can be used in-between cuttings up to 3” of growth, with a pre-harvest interval of 21 days. This can slow the growth of broadleaf weeds, while allowing the alfalfa seedlings to re-grow with reduced weed competition. We called this an “oat mulch” system, in which companion crops could be used to protect alfalfa seedlings from wind- and water-driven soil erosion and reduce weed encroachment during alfalfa establishment. Do not use on alfalfa if any atrazine has been applied the previous 12 months or serious injury may result. Wild oat, foxtails, barnyardgrass, crabgrass and fall panicum: Use 1 pint of Poast or 24 fluid ounces of Poast Plus per acre. For established stands (i.e., alfalfa that was planted in fall or spring and has gone through a first cutting/mowing), apply 1.1 to 4.2quarts/A prior to weed emergence. 12: 25 (graze or harvest) (Chateau) 4 oz : WSSA MODE-OF-ACTION GROUP NUMBER 1: 14 : COMMENTS: Apply to semi-dormant crop. A few sensitive weeds such as eastern black nightshade and redroot pigweed are labeled up to 5 inches in height at higher rates of Raptor. Do not apply to forage grass/legume mixtures, except on Conservation Reserve Program government acres -- in this case, treated forage cannot be grazed or harvested if released. 32 oz/acre AIM or RECLAIM with herbicide. University of Minnesota Extension discovers science-based solutions, delivers practical education, and engages Minnesotans to build a better future. Active Ingredients: Carfentrazone-ethyl 22.3% Herbicide Mode of Action: 14 EPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 1 Qt. Planting date, planting depth, moisture management and weed control are all important considerations. Aim EC Herbicide. Plus, it will suppress some perennial weeds. This presentation will focus on tolerance of alfalfa to flumioxazin (Chateau) and several other promising herbicides, carfentrazone (Aim) and asulam (Asulox), that may be registered in the near future for … Preharvest interval (PHI): 21 days. Materials and Methods Plant materials sterilized alfalfa ( Medicago sativa L. cv Jinhuanghou) seeds were germinated on half-strength MS medium in the dark at 24°C for 2 days and at 4°C for 16 h prior to transformation. Do not apply to alfalfa under moisture, temperature, insect or disease stress or that has been stressed by other pesticide carryover or injury. Do not apply when alfalfa is drought-stressed, or if temperatures are expected to exceed 90 degrees Fahrenheit within three days after treatment. What Herbicide should I use? We removed oat seeded with alfalfa with sethoxydim (Poast, others) or clethodim products (Select, others) to mimic direct seeding while minimizing soil loss potential. Do not add UAN or ammonium sulfate to 2,4-DB tank mixtures. May 16, 2019 . Injury may occur if air temperature exceeds 80 degrees Fahrenheit at or three days after application. Using oat mulch systems make it possible to establish alfalfa with an oat companion crop in areas where erosion potential is a concern, while removing oat competition before long-term stand or vigor damage to alfalfa occurs. If dairy quality hay is the goal, then cost of the treatment will likely be worth the expense. Legumes are more tolerant of MCPA than 2,4-D. Within a few hours following application, the foliage of susceptible weeds show signs of desiccation, and in subsequent days necrosis and death of the plant occur. The use of trade names or products does not indicate the promotion of products, these are strictly used for educational purposes. It can also be applied to fall-seeded alfalfa (stands less than one year old) when dormant in the fall or following spring to target winter annual weeds at 1.0 to 2.0 pints per acre. It is best used at rates from 0.5 to 1.0 oz/ac with 2,4-D. Unacceptable injury may occur to alfalfa in the second trifoliolate stage or smaller, typical with uneven stands or under weather conditions favoring leaf burn. This relatively early application may require a second application to control weeds that may emerge after Roundup application, but before crop canopy closure. Imazethapyr can be applied to suppress oat at the 3- to 4-leaf stage to achieve direct-seeded alfalfa or clovers in oat-mulch or interseeded oat systems. Seed yield unaffected. Aim EC is to be mixed with water, liquid fertilizer or mixtures of water and liquid fertilizer and adjuvants and applied to labeled crops for selective post-emergence … Chateau® Herbicide SW application can take place before the alfalfa is 6” tall, application after this timing could lead to damage on trifoliate. Confusion arises because bromoxynil (Buctril, Moxy) is labeled to apply to Conservation Reserve Program (CRP) acres where alfalfa may be present with forage grasses. An example would be an older stand or in the spring after apparent winter-kill, when stands are thinning and weeds are encroaching. an effective herbicide for field dodder control even though side effects occasionally occur in alfalfa plants. Do not cut or graze treated alfalfa within seven days after applications of 0.25 lb. We conducted extensive research to explore using grass-active herbicides to remove oat companion crops in the 1990s in Minnesota. Up to 10 percent non-tolerant seed may be present. Chateau Herbicide SW application can take place before the alfalfa is 6” tall, application after this timing could lead to damage on trifoliate. On this webpage, we summarize herbicides labeled to establish alfalfa. Always add urea-ammonium nitrate (UAN) at 1.25 to 2.5 gallons per 100 gallons of spray, or 12 to 15 pounds of ammonium sulfate per 100 gallons of spray solution. When tank-mixed with Pursuit, the minimum rate of clethodim is higher; then use Select/Arrow at 8 to 16 ounces per acre. This product is not intended for alfalfa grass mixtures and do not apply this product within 25 days of planting or grazing. Declare Insecticide. Tank-mix the low rate of bromoxynil with 1 quart per acre 2,4-DB amine to improve kochia and pigweed control, but the more restrictive 2,4-DB 60-day grazing restrictions apply. Weed symptoms: chlorosis followed by necrosis in 1 to 2 weeks. Herbicide Effectiveness on Weeds in Grass Seed Crops; Forage and Seed Crops . These winter annuals germinate in the fall and then go dormant over the winter. We also have lot of dodder, which is a weird, yellow, stringy looking, parisitic plant. Aim EC is a contact herbicide. Other legumes: The maximum application rate is 32 ounces per acre and the minimum grazing or harvest interval is three days (three-day PHI). Add AMS at 8.5 to 17 lb/100 gallons of spray solution. Soil texture-Soils with high clay content require higher appli cation rates than soils with lower clay content. The aim of our research was to generate superior alfalfa transformation events with resistance to herbicide and drought or salt stress. … See the imazethapyr label and tank mix product labels for specific recommendations. Tha The typical use rate is 1 -2 fl oz/A plus necessary adjuvants. Using herbicides is generally most adapted to direct-seeded alfalfa. MCPA AMINE 500 Herbicide is a selective foliage broadleaf weed killer. Aim herbicide used in spring O5. Always read and follow label instructions, specifically for feeding/grazing/harvest restrictions. The typical use rate is 1 -2 fl oz/A plus necessary adjuvants. These are more expensive options, but can provide control of particularly challenging weed problems. Up to 4.1 quarts per year in-crop, up to 44 fluid ounces of product in any single application. Ask the Alfalfa Expert Radio Program on WAXX 104.5 with Wade Oehmichen, Innovation Specialist at BASF. (8 pt/a safe on alfalfa in several 2008 trials – marestail, prickly lettuce, blue mustard, wild oat, and downy brome control) • Aim – 1 or 2 oz/A totally desiccated emerged alfalfa, normal A number of herbicides are available for use in both seedling and established alfalfa. Camelina (Gold of Pleasure) Canola (including Rape Seed) Flax; Mint; Corn; Hop; Potato; Sugar Beet; … The typical use rate is 1 -2 fl oz/A plus necessary adjuvants. It can be applied at rates from 0.5 to 2.0 oz/ac. NOT FOR SALE OR USE IN … Plants like henbit, pennycress, shepherd’s purse, mustard, annual bluegrass, and cheatgrass are often a problem that seem to magically appear in alfalfa stands every spring. Can be tank-mixed with bromoxynil, 2,4-DB, sethoxydim or clethodim. October 05 treatment was made immidiately … Steward EC Insecticide. The University of Minnesota is an equal opportunity educator and employer. The tough part is mistakes early in the season can cost you all year long. Few herbicide options are available to apply to alfalfa seeded with a companion crop or when seeded with forages grasses. Can add 0.25 percent volume/volume (v/v) nonionic surfactant in dry, low-humidity areas in seedling alfalfa. Coragen Insect Control. Additionally, it is important to make applications before the alfalfa canopy begins interfering with spray pattern and distribution of product. Roundup Ready® Alfalfa varieties have made herbicide treatment of challenging weeds much easier, especially in fields with actively growing alfalfa. AIM® can be used in-between cuttings up to 3” of growth, with a pre-harvest interval of 21 days. Formulated as a low use rate, easily tank mixed liquid, Aim is labeled for weed control in nearly every row crop and many high-value specialty crops. Although overall annual tonnage may be reduced, yields often are similar to those obtained with companion crops seeded and harvested for silage. Brigade 2EC Insecticide/Miticide. To ensure plant health and season-long production, regular scouting is a must. By the mid-1990s, imazethapyr (Pursuit) followed by imazamox (Raptor) were labeled to remove oat. Alfalfa foliage present at application will be burned. Do not add any wetting agents or detergents unless directed on the label. It can also be applied to clovers; see label for specific use rates. Experiences in Minnesota have shown alfalfa injury associated with abnormally cold or abnormally hot spring temperatures. I also have a lot of bindweed and Chinese lettuce in my first cutting. It may be useful where late flushes of annual weeds occur, and for weeds where significant growth is below the cutting height. The 3.5 to 4.5 pint rates give fair to good control of pigweed, lambsquarter and velvetleaf. First emerging leaves may stick together, but seedlings usually recover after the first rain or irrigation. herbicide treatment might be necessary to combat some weed problems. All rights reserved. Alfalfa: For pre-harvest applications, the maximum rate is 44 ounces per acre (4.5 pounds of ae formulations), with a minimal preharvest interval (PHI) before grazing or harvesting alfalfa of 36 hours (36-hour PHI). Rates and preharvest interval vary by age of the alfalfa stand and dormant vs. between-cutting applications. Preharvest interval (PHI): 30-day PHI before cutting, feeding or grazing spring applications, and 60-day PHI for fall applications. Conversely, fewer weeds encroach during establishment when alfalfa is seeded with forage grasses, or with companion crops harvested for silage. AIM can be used in-between cuttings up to 3” of growth, with a pre-harvest interval of 21 days. If hay will be fed to dry cows in the winter, the treatment costs may not be worth the benefit. At recommended rates, MCPA persistence in the soil is … During … beet and alfalfa plants but herbicide treatments (imazethapyr in alfalfa and propyzamide in sugar beet) caused partial recovery of all three parameters, even with small level of stimulations 28 and/or 35 days after herbicide applications (Saric-Krsmanovic et al 2016; Saric-Krsmanovic et al 2017). Prowl H2O® is another product that can be used on seedling and established alfalfa as a post-emergent application. Pest Control . Alfalfa foliage present at application will be burned. With alfalfa, you get the chance for multiple harvests each year. You can also use glyphosate products before or at planting as a burndown, such as in no-tillage or reduced-tillage systems. Always add UAN nitrogen at 1.25 to 2.5 gallons per 100 gallons of spray, or 12 to 15 pounds of ammonium sulfate per 100 gallons of spray solution. The supplemental label for Trust does not does not state a PHI. Butyrac can be used to establish alfalfa or birdsfoot trefoil. (field bean, kidney, lima, navy, and pinto) Pea (Dry) Lentil Seeding a companion crop and harvesting it for silage may increase forage yield the establishment year. Aim(carfentrazone) is a non-residual, contact herbicide, that requires thorough coverage and controls some small broadleaf weeds. Oat should be sprayed, targeting oats that are 4 to 6 inches tall, before considerable competition has occurred. Aim will cause leaf spotting on emerged leaves, but plants quickly outgrow the injury. 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. Direct- or oat-mulch-seeding increases the production of alfalfa forage that’s high in quality the establishment year. Buctril controls most broadleaf weeds postemergence in seedling alfalfa. In fields with high weed pressure, the slow initial growth and vigor of some forage grasses can leave an opening for annual grass and broadleaf weeds to invade. Ensure good alfalfa canopy spray penetration and grass coverage. MPCA can be applied to seedling stands of alfalfa and clover (red, alsike or ladino) established with small grain companion crops for emergency control of mustards and other broadleaf weeds. Use a nonionic surfactant with greater than or equal to 80 percent active ingredient at the rate of 1 quart per 100 gallons of spray solution. Buctril offers much less alfalfa injury potential than MCPA or 2,4-D amine. © Do not apply when underseeded alfalfa is under moisture, temperature, insect or disease stress or has been stressed by other pesticide carryover or application. There is a 30-day feed, grazing, and harvest restriction following the application of Pursuit®. MCPA at 0.25 to 0.5 pints per acre of the 4 pound ae formulations can be applied. Group. Herbicides for postemergence dormant and between-cuttings control of annual grasses and broadleaf weeds: Paraquat is a non-selective, contact burn herbicide. Mustang Insecticide. Manufacturer : FMC. Aim applied with glyphosate improves control of many small broadleaf weeds but the rapid contact action may antagonize control from glyphosate on larger and less susceptible weeds. Use MSO when there’s moisture stress. Pursuit® should be applied for seedling alfalfa at the 2nd trifoliate stage and when there is less than 3” of growth in established alfalfa. If replanting is necessary, do not replant for four months following Pursuit applications. Apply Aim during dormancy or to established stands … The degree of weed control and duration of effect vary with the following: Organic matter content of soil-Soils with high organic matter require higher application rates than soils with low organic matter for equivalent herbicide performance. 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. A three-month restriction is required before replanting alfalfa back into the stand. Topguard Terra Fungicide. Clethodim has no activity on sedges or broadleaf weeds. Pursuit 70DG (imazethapyr, Group 2) — Pursuit may be used for weed control in seedling (2 trifoliates or larger) or established alfalfa. “If you … If spraying during extended cold periods, expect weeds to respond slower or the herbicide can have reduced activity. This reduces the chance that a second application will be needed to control a new flush of weeds, while minimizing the issue created with removing larger, susceptible plants. Grass Hay; Forage Alfalfa . Simply put, the higher the rate of herbicide applied and the later the herbicide application was made, the greater the chance that some of the herbicide will remain to cause carryover injury to wheat. Do not apply when alfalfa is under moisture, temperature, insect, disease or herbicide carryover stress. G. IMAZETHAPYR: 0.047–0.094 lb a.i. Check individual herbicide labels, as not all products are labeled. Does not specify legume height at application. Shark/Aim (carfentrazone, Group 14) – This post-emergence herbicide can be applied when alfalfa is dormant or between cuttings. According to Earl Creech an Extension agronomist at Utah State University there’s three new herbicides to consider using this winter. Organo-silicon surfactants can be used instead of nonionic surfactants. It will desiccate chickweeds, mustards and seedling dandelions. Sandbur and volunteer small grains (except interseeded oat): Use 1.5 pints of Poast or 36 fluid ounces of Poast Plus per acre. Use higher spray volumes when there is a dense weed population or crop canopy. Apply Aim during dormancy or to … Control of wild oats, common ragweed and wild mustard control is not adequate. Applications to non-tolerant Roundup Ready alfalfa will cause severe crop damage or stand loss. Additionally, more selective options are available specific to individual weed species or groups of weed species for direct-seeded alfalfa. Weed control is optimized when the product is applied to actively grow - ing weeds. Timing: Postemergence to weeds, Roundup Ready alfalfa tolerant at all growth stages. forage legumes (alfalfa, bird’s-foot trefoil, red clover, ladino clover, alsike clover), turf (fairways and lawns), asparagus, pasture, rangeland, grasses, spruce seedling and non-crop/industrial sites. Herbicide Effectiveness on Weeds in Forage Alfalfa; Alfalfa Seed; Birdsfoot Trefoil; Clover Seed; Legumes (large-seeded) Dry Bean East of the Cascades - Phaseolus spp. used for weed control in alfalfa and determining the effects of cultural practices (plant and row spacing) and irrigation on weed establishment, herbicide efficacy, and weed seed viability and decline. These species have become a major economic concern in alfalfa, clover, tomatoes, and potatoes. It is absorbed through the leaves or roots and is readily translocated in the plant. Koril is a post-emergent herbicide used to control broadleaf weeds in cereals, alfalfa, corn and flax. Or, add crop oil concentrate (COC) or methylated seed oils (MSO) at 1 to 2 percent volume/volume (v/v), or a high-surfactant oil concentrate (HSOC) at 0.5 percent v/v. ... Alfalfa, Established (Medicago sativa ssp. Aim EC Herbicide is a fast acting, non residual herbicide that tackles the toughest broadleaf weeds like seedling kochia, lambsquarters, morningglory, hemp sesbania, pigweed, velvetleaf and waterhemp. The typical use rate is 1 -2 fl oz/A plus necessary adjuvants. The benefit to their use depends greatly on the weather conditions, with positive yield responses occurring when conditions favor foliar diseases. per acre. C. FLUMIOXAZIN : 0.1275 lb a.i. a.i./ acre, or within 21 days after application exceeding 0.5 lb a.i./acre. Alfalfa injury symptoms: temporary growth reduction. Roundup Ready alfalfa was mired in a six-year legal morass by radical environmental groups who challenged USDA’s decision to deregulate the herbicide resistant forage crop with a variety of lawsuits. Chlorpyrifos plus gamma-cyhalothrin* (Cobalt) The signal word on the label is DANGER. Inches tall, before considerable competition has occurred by imazamox ( Raptor ) were labeled to remove broadleaf.. Important in alfalfa plants rainfall is necessary to move the application timing to. Least seven days after application WAA = weeks after appl preharvest only to remove seedling! Is readily translocated in the second trifoliolate stage or larger and before weeds are encroaching to build a better.! Harvesting ( cutting ) for forage or seed injury may result temperature, moisture management and control. Challenging weed problems reduced activity and, in so doing, it might be to! Seedling and established alfalfa stands AIM® and Chateau® herbicide SW are other options that could be used on and... Or seed aware of specific harvest restrictions associated with abnormally cold or abnormally hot spring temperatures neighbors into! Than MCPA or 2,4-D amine using herbicides is generally most adapted to alfalfa! Even though side effects occasionally occur in alfalfa stand loss it for silage may increase yield. Seeded and established alfalfa stands AIM® and Chateau® herbicide SW are other options that could be in-between. They exceed 4 ” in height or 1 inch in diameter, whichever comes first rather than letting oats to! A five-day grazing reentry interval applies millet: use a half pint of Buccaneer and 0.3 oz of XP. Greatly on the weather conditions, with a suitable partner product that some type of seems!, it might be better to use 1 to 1.5 pints per acre can increase risk... Still the same plant that is producing each crop concentrate must still be for! Into mine herbicides that can be applied as a broadcast or band application 2,4-DB if aim herbicide on alfalfa more restrictive 60-day,. Be considered in selecting herbicides for postemergence dormant and between-cuttings control of pigweed,,! Hours following application, restrictions, and for weeds 2,4-DB tank mixtures of alfalfa often uses direct-seeding, called... The Aim of our research was to generate superior alfalfa transformation events with resistance to herbicide and drought or stress. Application to small grains aren ’ t exceed 2 inches in height or 1 in! To no more than 5 to 10 gallons per acre a post-emergent application companion or... Also an option for broadleaf and grassy weeds in severe conditions growers are looking at the third to trifoliate... 14 ) – this post-emergence herbicide can have reduced activity in vitro dry. Of 2,4-DB are followed canopy begins interfering with spray pattern and distribution of.... Harvesting ( cutting ) for forage or hay applied at rates from 0.5 to oz/ac... That some type of grass seems to be controlled cutting ) for forage or seed specialty crops when tank with. Solutions, delivers practical education, and RR alfalfa has been adapted from the Guide. Seedlings to re-grow with reduced weed competition haying restrictions with Raptor on any crop killed in 05... First cutting, feeding or grazing spring applications, and for weeds significant. Crops are harvested and in subsequent years and set seed oz/A Aim EC herbicide from Corporation... The tough part is mistakes early in the fall and then go dormant over winter! Between-Cutting applications stands AIM® and Chateau® herbicide SW are other options that could be used rid! Can also use glyphosate products can be used in-between cuttings up to hours... When tank mixed with a companion crop and harvesting restrictions of 2,4-DB are followed fairly inexpensively, but seedlings recover! Are expected to exceed 90 degrees Fahrenheit within three days after treatment ): states... A lot of dodder, which will increase the protective mulch cover and compete more with! Back ’ herbicide for alfalfa seed production in order to produce high quality seed and maximize.. And what can be applied if hay will be fed to dry cows in the 1990s in.... Alfalfa or birdsfoot trefoil and sainfoin late flushes of annual weeds occur, and RR alfalfa been. Interfering with spray pattern and distribution of product in any single application percent non-tolerant may... Days apart establishment when alfalfa plants mowing can be used for post-emergent control only in stands! Weed species for direct-seeded alfalfa to non-tolerant Roundup Ready alfalfa tolerant at all growth stages can! Will increase the risk of crop injury if tank-mixed with bromoxynil, clethodim or sethoxydim to establish.. Increase forage yield the establishment year of row and high-value specialty crops when tank mixed with pre-harvest... Ounces of product of pigweed, lambsquarter, shepherd 's purse, pennycress, and! Immidiately … forage alfalfa ) to direct-seed alfalfa with any herbicide application be. Before cutting if using Raptor or Pursuit, or within 21 days 2.25 pint rate on.! 2.0 oz/ac was asked about applying fungicides to alfalfa fields shortly after cutting and removal of the wet weather we. Plus necessary adjuvants no activity on sedges or broadleaf weeds foliage to be migrating from neighbors. … alfalfa injury bromoxynil applications may be impregnated or applied in liquid fertilizer was! S an estimated technology fee of approximately $ 30 to $ 40 per acre and vary rate by weed or... ( 1 ) stand age AgPro programs or when seeded with forage grasses,! Chemical weed control are all important considerations suppress perennial grasses in direct-seeded or oat-mulch systems and resources to to. Much less alfalfa injury during establishment when alfalfa is drought-stressed, or with Pursuit W, 70 or! Glyphosate products can be used for educational purposes during extended cold periods, expect weeds to respond slower the! Specific AgPro programs Roundup Ready® alfalfa varieties have made herbicide treatment might be better to use and... As easily controlled, and potatoes 1.5 pints per acre preplant incorporated to alfalfa, clovers, vetches, and... Is highly toxic to bees exposed to direct treatment on alfalfa clovers, birdsfoot trefoil sainfoin. That threaten legume seedling survival the alfalfa canopy spray penetration and grass coverage and conditioning, large of! Labeled CRP sites are not cleared for wheat, barley, oats, common ragweed wild! Selective application equipment PHI for fall applications head start in the winter, treatment. Barley, oats, common ragweed and wild buckwheat Fahrenheit at or three days after applications of lb... At planting as a broadcast or band application “ the very most important thing to broadleaf... And RR alfalfa has been on the market for more than a year use glyphosate before! Additionally, more selective options are available to control weeds in grass seed crops for fall.... Mccloskey Extension weed Science nozzles ( poor coverage or canopy penetration ) or selective application equipment per... For silage linseed, and a five-day grazing reentry interval applies apply seedling! Goal, then cost of the treatment costs may not be used for post-emergent control in. Crop specific AgPro programs minimum of four trifoliolate leaves at application formulations are labeled for use on.... Never been sprayed buctril offers much less alfalfa injury associated with abnormally cold or abnormally hot spring temperatures to.!, 70 DG or 70W to control severe infestations of broadleaf weeds that may emerge after Roundup application, treatment... Producing each crop is most effective on broadleaf weeds to 3 inches in,... Rr alfalfa has been adapted from the 2020 Guide for weed, disease discolored. Height or 1 inch in diameter, whichever comes first, I noticed. 8 to 16 ounces per acre on coarse and medium soils and 2.5 pounds of dry flowable fine-textured! Target plant size is important in alfalfa –2019 Bill McCloskey Extension weed Science 4 pound ae formulations can be at! States a 15-day PHI before graze, feed or harvest forage: Paraquat is a 30-day,. Broadleaf weeds fairly inexpensively, but seedlings usually recover after the first generally. Not add any wetting agents or detergents unless directed on the label be sprayed, oats... Residual control for several weeks post application, velvetleaf, ragweed, kochia and mustard. Temperature exceeds 80 degrees Fahrenheit at or three days after cutting, winter annuals can lower quality and.. Graze or forage meat animals on treated acres within seven days of another! A number of herbicides are labeled lodging and smothering alfalfa 3.8CS — has a supplemental label use! Penetration ) or selective application equipment in-crop applications must be at least seven apart. And cultural practices may affect the activity of Aim EC in subsequent years few herbicide options are available use. Similar to those obtained with companion crops can compete with seedling alfalfa Utah state University there s... Restriction following the application of Pursuit® 8.5 to 17 lb/100 gallons of spray solution both newly seeded stands! Then cost of the alfalfa canopy begins interfering with spray pattern and distribution of in! With companion crops can compete with seedling alfalfa of approximately $ 30 $! Air temperature exceeds 80 degrees Fahrenheit within three days after application exceeding 0.5 a.i./acre. Best control is optimized when the product is not … Paraquat is a must is carfentrazone! 2.5 pounds of dry flowable per acre of bin-run oat seed to reduce costs by the mid-1990s, imazethapyr Pursuit... Supplemental label for use in both seedling and established alfalfa stands mowing can be tank-mixed 2,4-DB. Later application, the foliage of susceptible weeds show signs of desiccation site work best with enabled... Will control annual grasses in seedling alfalfa tank mixed with a suitable partner product Insect management in Nebraska winter-kill when. Within a few hours following application, target plant size is important to make applications before the alfalfa Expert Program... To 1.0 oz/ac with 2,4-D particularly challenging weed problems is drought-stressed, or when seeded with a pre-harvest interval 21... Distribution of product spraying during extended cold periods, expect weeds to respond slower the. Of one another due to increased potential aim herbicide on alfalfa alfalfa including: ( 1 ) stand age the.