Table 2. Herbicides for Seedling Alfalfa Stands
Any person using products listen in this handout assumes full responsibility for their use in accordance with current directions of the manufacturer.
Trade Name, Formulation, & Application Rate Other Trade Names Active Ingredient(s) Application Timing Other Labeled Forages Special Instructions and Remarks
Balan
1.5 lb/gal EC
3 to 4 qt/A
None benefin Preplant Incorporated birdsfoot trefoil & red, ladino, & alsike clover Do not use small grains as a companion crop. Do not use on soils high in organic matter
Buctril 2EC
2 lb/gal EC
1 to 1.5 pt/A
Buctril 4EC
Moxy 2E
bromoxynil Postemergence None Do not apply if temperatures are to exceed 70° F at application or for 3 days after application. Do not apply to stressed crop. Do not graze or harvest spring-treated alfalfa for 30 days and fall-treated for 60 days after treatment. Apply in fall or spring to seedling alfalfa with at least 4 trifoliate leaves and to weeds at or before the 4-leaf stage or 2 inches in height (which ever is first).
Butyrac 200
2 lb/gal S
1 to 3 qt/A
None 2,4-DB Postemergence birdsfoot trefoil & red ladino, & alsike clover Do not harvest or graze for 60 days after treatment. Do not apply to sweet clover. Use on weeds less than 3 inches tall (3 inches across for rosettes). Use higher rates for seedling smartweed or curly dock.
Eptam 7-E
7 lb/gal EC
2.5 to 4.5 pt/A
Eptam 20-G EPTC Preplant Incorporated birdsfoot trefoil, lespedeza, & clovers Do not use small grains as a companion crop. Do not use on white Dutch clover.
Gramoxone Max
3 lb/gal S
0.75 to 1.3 pt/A for dormant stands
0.75 pt/A for between cutting applications
None paraquat Dormant stands less than 1 year old or Between Cuttings None For dormant-season applications, apply after last fall cutting or before spring growth is 2 inches tall. Do not harvest or graze for 60 days after dormant-season application. Do not apply more than 1 dormant-season application in a season. For between-cuttings applications, apply within 5 days after cutting and before alfalfa regrowth is 2 inches tall. Do not harvest or graze for 30 days after between-cutting applications. Do not exceed 2 between-cutting applications during seedling year. Restricted Use Pesticide.
Kerb 50 W
50% WP
1 to 3 lb/A
None pronamide Postemergence birdsfoot trefoil, crownvetch & clovers Do not graze or harvest for 120 days after application. In fall-seeded legumes, apply after trifoliate stage. In spring-seeded legumes, apply the following fall. Restricted Use Pesticide.
Poast
1.5 lb/gal EC
0.75 to 2.5 pt/A
Poast Plus sethoxydim Postemergence birdsfoot trefoil Do not apply within 7 days of grazing, feeding, or harvesting undried forage, or within 14 days of harvesting dry hay. Do not apply more than 6.5 pts/acre/season. Best grass control is achieved when application is made prior to mowing. If tank-mixed with 2,4-DB, follow the 2,4-DB harvest and grazing restrictions.
Pursuit 2AS
2 lb/gal AS
3-6 fl. oz./A
Pursuit 70 DG imazethapyr Postemergence None Do not feed, graze or harvest for 30 days after application. Apply to alfalfa in 2nd or larger trifoliate leaf stage and to weeds 1 to 3 inches tall (3 inches across for rosettes). Add nonionic surfactant or COC plus 28% N. May temporarily reduce alfalfa height.
Select 2 EC
2 lb/gal EC
8 to 16 fl. oz./A
Prism clethodim Postemergence birdsfoot trefoil Do not apply within 15 days of grazing, feeding or harvesting forage. Do not plant rotational crops within 30 days after application. Do not apply a broadleaf herbicide within 1 day following Select application. Best grass control is achieved when application is made prior to mowing. If tank-mixed with 2,4-DB, follow the 2,4-DB harvest and grazing restrictions. Always use COC.