Forage Feast 438RR | Alfalfa | Products | Grain-Forage | Rupp Seeds

Forage Feast 438RR

Roundup Ready® Alfalfa

Forage FeastRoundup Ready AlfalfaForage Feast 438RR Alfalfa lets you produce cleaner, higher quality alfalfa for greater profit potential. The simplicity and improved crop safety of using one herbicide with the widest window of application available enables you to be in control instead of Mother Nature. Whether it’s for great forage yields, superior forage quality or very fast recovery after cutting, Forage Feast 438RR is the choice for commercial hay, beef and dairy producers who want to take advantage of Roundup Ready® technology.

Item Number
Root Type
Fall Dormancy
Winter Survival
Bacterial Wilt
Highly Resistant
Fusarium Wilt
Highly Resistant
Phytophthora Root Rot
Highly Resistant
Verticillium Wilt
Highly Resistant
Highly Resistant
Aphanomyces Root Rot
Highly Resistant
Northern Root-knot Nematode
Pea Aphid
Moderately Resistant
Stem Nematode
Moderately Resistant

Growing Tips

10 Tips to Top Alfalfa Tonnage
  1. Select a field with good drainage and free of weeds. Weed control should be done prior to stand establishment.
  2. Lime your fields 6 months to a year prior to seeding. Soil pH should be 6.8 to 7.5.
  3. Soil test. Phosphorous levels should be 70-80 lbs., Potassium 400-500 lbs., Boron 3 lbs. and Sulfur 40 lbs.
  4. Prepare a firm seedbed. Firm seed to soil contact is necessary for maximum emergence.
  5. Choose an alfalfa with the genetic background to repay you for your extra efforts.
  6. Plant alfalfa seeds ¼”-½” deep. Seed 18-20 lbs. per acre with direct seeding, 15-18 lbs. per acre with a nurse crop.
  7. Monitor insects. Alfalfa weevil during the first crop and Potato Leaf Hopper during the second through fourth crop. Adjust cutting schedules or spray as needed.
  8. Fight diseases with broad disease resistance base.
  9. Harvest forage at late bud stage for maximum forage yield and quality. Do not harvest from September 1 through October 15 to allow root carbohydrates to replenish themselves.
  10. Maintain fertility. Top dress after 1st and 3rd cuttings. Each ton of forage removes 12 lbs. of Phosphorus, 50 lbs. of Potassium, 0.4 lbs. of Boron and 6 lbs. of Sulfur.
Disease Ratings

Race 1 resistance for Anthracnose and Aphanomyces.

Fall Dormancy Scale: 1 = least fall growth to 9 = greatest fall growth

Winter Survival Index: 1.5 = superior winter survival, 2.0 = very good, 2.5 = good to very good, 3 = good, 4 = adequate, 5 = low, 6 = no winter survival

DRI (Disease Resistance Index): 6 = lowest resistance to 30 = highest resistance

Disease/Insect Ratings: Highly Resistant (> 50% of plants of resistance), Resistant (31 - 50%), Moderately Resistant (15 - 30%), Low Resistance (6 - 14%), Susceptible (< 6%)