The preharvest interval (PHI) is five days. INTRODUCTION Weed control is important in alfalfa seed production in order to produce high quality seed and maximize yields. Apply 1 to 1.5 parts of the 2L formulation or 0.5 to 0.75 pints of the 4EC formulation per acre to seedling alfalfa in the fall or spring when the majority of the field has at least four trifoliolate leaves. 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. Aim herbicide used in spring O5. Butyrac can be used to establish alfalfa or birdsfoot trefoil. It’s applied preharvest only to remove a stand and, in so doing, it can suppress or control perennial weeds. “The very most important thing to control weeds in alfalfa is to promote a dense, vigorous stand,” Creech says. Always read and follow label instructions, specifically for feeding/grazing/harvest restrictions. Rates and preharvest interval vary by age of the alfalfa stand and dormant vs. between-cutting applications. Pursuit® and Raptor® are both Group 2 herbicides that can be used on established or seedling alfalfa. It may be useful where late flushes of annual weeds occur, and for weeds where significant growth is below the cutting height. 105 Ag. Pursuit performance improves with warmer temperatures. Alfalfa seeded with a companion crop is a traditional practice that has served Minnesota producers well. 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. 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. Reduce sprayer pressure and lower spray volume to no more than 5 to 10 gallons per acre (gpa) to help minimize injury. With tank mixes, the most restrictive harvest interval must be followed. Organo-silicon surfactants can be used instead of nonionic surfactants. Weed control is optimized when the product is applied to actively grow - ing weeds. Oil adjuvant increases weed control. It’s recommended to use 1 to 1.5 bushels per acre of bin-run oat seed to reduce costs. Pursuit® in particular can provide residual control for several weeks post application. Do not cut or graze treated alfalfa within seven days after applications of 0.25 lb. Up to 4.1 quarts per year in-crop, up to 44 fluid ounces of product in any single application. Weed symptoms: chlorosis followed by necrosis in 1 to 2 weeks. 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. More intense management of alfalfa often uses direct-seeding, sometimes called solo seeding. Question is why so many dandelions after these treatments and what can be used to rid of dandelions? 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. Irrigation or rainfall is necessary to move the herbicide into the soil. 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 … It is highly toxic to bees exposed to direct treatment on alfalfa. Time Apply during planting or up to 24 hours after potatoes have been planted. 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. MCPA AMINE 500 Herbicide is a selective foliage broadleaf weed killer. See the imazethapyr label and tank mix product labels for specific recommendations. Chateau Herbicide SW application can take place before the alfalfa is 6” tall, application after this timing could lead to damage on trifoliate. This study aimed to determine the selectivity of herbicides applied in pre- and post-emergence for alfalfa crops. Aim EC herbicide also … Alfalfa injury symptoms: temporary growth reduction. Up to 10 percent non-tolerant seed may be present. Use MSO when there’s moisture stress. Raptor herbicide for weed control in alfalfa. Within a few hours following application, the foliage of susceptible weeds show signs of desiccation. AIM EC is a contact herbicide. Butyrac 200 controls certain annual broadleaf weeds postemergence. Post-Attachment Herbicide Treatment For Controlling Field Dodder (Cuscuta Campestris Yuncker) Parasitizing Onion In Gezira State, ... has been distributed worldwide as a contaminant of alfalfa seed, as both dodder and alfalfa seeds are very similar in appearance. Poast Plus can only be used on alfalfa. © Extension is expanding its online education and resources to adapt to COVID-19 restrictions. We also have lot of dodder, which is a weird, yellow, stringy looking, parisitic plant. Do not add UAN or ammonium sulfate to 2,4-DB tank mixtures. Do not apply the tank mixture with 2,4-DB when underseeded to small grains (2,4-DB is not cleared for application to small grains). Rotate with herbicides having different modes of action (e.g. Labels vary on application instructions. 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. Oat is recommended because other small grains aren’t as easily controlled, and therefore may cost more to remove. Restrictions on Grazing/Feeding/Haying of Crops Treated with Herbicides. This relatively early application may require a second application to control weeds that may emerge after Roundup application, but before crop canopy closure. However, as with any herbicide application, target plant size is important. Eye on Crops: Aim to plant your late-summer alfalfa between July 30 and Aug. 15. Seeding a companion crop and harvesting it for silage may increase forage yield the establishment year. (field bean, kidney, lima, navy, and pinto) Pea (Dry) Lentil; Garbanzo Bean (Chickpea), Cicer arietinum; Oils and Fiber . Many seed alfalfa with forage grasses to potentially increase in vitro digestible dry matter yield. It will desiccate chickweeds, mustards and seedling dandelions. Apply in 10 or more gallons per acre (gpa) via a ground carrier or 5 or more gallons per acre via air. Do not sequentially apply Pursuit or Raptor within 60 days of one another due to increased potential for alfalfa injury. Beleaf 50SG Insecticide. Generally ineffective on peat or muck soils. 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