Herbicides available to control broadleaf weeds postemergence in seedling alfalfa include bromoxynil; 2,4-DB; Pursuit; and Raptor. Bromoxynil controls. In seedling alfalfa stands, best control of bromes is achieved with early fall applications of herbicides. In thinning established stands, bromes can be. Seedling Alfalfa, trifoliate leaves. ➢ Buctril (4 trifoliates). ✓ Broadleaf weed control, no activity on grasses. ✓ Very weak on pigweeds. Several herbicides have proven effective in controlling alfalfa: clopyralid, glyphosate, dicamba and 2,4-D. Clopyralid (Transline) can be applied over the top. Metribuzin 75DF (formerly Sencor) — May be used on established alfalfa. Apply to 1 lb/A before spring regrowth. Impregnation on dry fertilizer can improve.
One is Sandia, an herbicide well-noted for nutsedge control in field and row crops. Nutsedge has been a serious problem in alfalfa with few management options. The degree of inhibition of weed growth by alfalfa pellet became stronger as the application of concentration increased. The results showed that alfalfa pellet. There are four general weed management strategies used in alfalfa: (1) preventive, (2) mechanical, (3) cultural, and (4) chemical. Sustainable and successful. Prior to Planting. Weed management should begin the year before seeding alfalfa to help ensure a long-lasting and productive stand. Keep in mind all of these herbicides are labeled for use in pure—stand alfalfa. However, only metribuzin and Pursuit can be applied to established alfalfa-grass. Alfalfa is a vigorous crop that is very competitive with weeds. The most effective weed control practice in alfalfa is maintaining a healthy crop and dense. Tables 1 and 2 list herbicides available for weed control in new seedings and established stands of alfalfa. The development of non-selective herbicides. A preplant herbicide is usually not needed for light weed infestations because annual weeds will be killed by frost. Poste- mergence herbicides can be used if. General Recommendations · The best time to spray is after the second cut once plants have begun to grow again. · In drier areas of the province, or during dry. Residual Weed Control is Key to Alfalfa Hay Yield and Quality by Duane Rathmann, BASF. Alfalfa, America's favorite forage crop, is known for two major.
WEED CONTROL: Control weeds to maximise the yield and quality of alfalfa harvested. Herbicide selection depends on the weed species present. Many weed problems in alfalfa can be avoided by using preplant herbicides. For example the herbicide glyphosate (Trade Name Roundup) can be applied up to compare weed control and alfalfa response of a metribuzin formulation from Cheminova with the current formulation and some other herbicide options. Chemical Weed Control in Alfalfa – Bill McCloskey. Extension Weed Science. Page 2. Alfalfa Herbicide Timeline. Pre Repeat applications, or other appropriate herbicides, will be needed to control this group of weeds. Other brands of glyphosate may be used on Roundup Ready. I seed alfalfa with a nurse crop for erosion control How can I make that work with Roundup Ready®? A nurse crop provides erosion control during early stand. Seedling alfalfa is vulnerable to weed competition because seedlings grow slowly and do not compete well with weeds. Weed competition in new alfalfa stands. Grazing dormant alfalfa growth can sharply reduce weed populations and aid chemical weed control by exposing the soil and weed seedlings. Forage removal by. Weed Management in Alfalfa Table 1. Weed Management in Alfalfa. View. Table 2. Estimated effectiveness of recommended herbicides on common weeds in Florida.
For conventional alfalfa three herbicides to use now are Sencor, Sinbar and Velpar. All three do an excellent job of controlling pennycress, tansy mustard. Currently metribuzin (Sencor®) is the only herbicide that is clearly registered for use in mixed stands of grass and alfalfa for hay. To get good stands of alfalfa we must control weeds during the first 60 days. It is during this time that competition from weeds will cause stand thinning. Haying prevents many weeds from going to seed, which helps deplete the weed seed bank in the soil and reduce future weed problems. Rhizobium- inoculated alfalfa. Prior to Planng. Weed management should begin the year before seeding alfalfa to help ensure a long‐lasng and producve stand. It.