W-L Alfalfas Technologies

For nearly 60 years, W-L Alfalfas has been committed to the development and advancement of alfalfa to help farmers drive their operation forward.


The industry’s first biotechnology-derived reduced-lignin alfalfa trait provides greater harvest flexibility and overall alfalfa quality.

HarvXtra® alfalfa is the industry’s first genetically-enhanced reduced-lignin alfalfa. This technology gives growers unprecedented control by widening cutting windows and giving the choice to maintain the current harvest schedule for higher-quality forage or delay harvest for increased tonnage without sacrificing quality. It is the most advanced alfalfa in the industry and provides a significant edge in your field.

  • Genetically enhanced HarvXtra® alfalfa changes the correlation between forage quality and stage of maturity by modifying lignin content beyond what is possible with conventional breeding techniques.
  • In a 2015 trial, lignin content in HarvXtra® alfalfa was more than 20 percent lower, and NDFD was 15-20 percent higher  than any of the commercial check varieties at the last sampling date.
  • In addition to maintaining forage quality over a longer period, this alfalfa variety is also Roundup Ready®, giving growers the enhanced broad-spectrum weed control they expect from the Roundup® system.

HopperShield™ Potato Leafhopper-Resistance

Our HopperShield™ varieties provide industry-leading PLH resistance for top yield and quality under various levels of leafhopper pressure.

W-L potato leafhopper—resistant alfalfa varieties are a clear choice for growers who want to minimize the impact of this damaging insect. Many farmers rely on these varieties because of convenience and agronomic performance, even under heavy leafhopper infestations.

  • Producers in regions of high leafhopper pressure can expect higher yields, better forage quality and reduced insecticide cost when they use our newest leafhopper-resistant varieties.
  • W-L HopperShield™ alfalfas can now offer more than 85 percent resistance to this harmful pest.
  • An Iowa State University study showed that the economic spray threshold (the point at which leafhopper infestation is high enough that spraying makes financial sense) is 10 times higher than that of nonresistant varieties. 

UltraCut™ Alfalfa Disease Package

The best way to protect against evolving Anthracnose and Aphanomyces disease strains is to plant a variety with more advanced resistance.

W-L Alfalfa’s seed varieties with the UltraCut™ alfalfa disease package provide agronomic and economic advantages by protecting your crop against expensive, evolving Anthracnose and Aphanomyces disease strains.

  • The UltraCut™ alfalfa disease package helps you grow a healthy alfalfa crop even in field conditions susceptible to Anthracnose and Aphanomyces disease strains.
  • ​UltraCut can help deliver an advantage through improved agronomic performance and yield potential.
  • UltraCut can show an average of 15% yield advantage over varieties with the disease package*
  • Find UltraCut in the follow W-L Alfalfas varieties:

Roundup Ready Alfalfa

Roundup Ready® alfalfa varieties allow growers to maximize the genetic potential of their W-L Alfalfa during critical stand establishment and stand life.

Roundup Ready® alfalfa varieties offer high yield, exemplary feed value and outstanding tolerance to Roundup® nonselective herbicide. This technology lets growers improve broad-spectrum weed control, maximize alfalfa production and maintaining excellent crop safety at all growth stages.

  • The improved weed control and enhanced crop safety gained with the Roundup Ready® system allows most growers to report a strong establishment year advantage in quality and yield potential.
  • Roundup Ready®  alfalfa is a great technology to control a variety of weeds and maximize yield potential in new or established stands to provide clean, consistent feed
Privacy and Terms

For the 2020 growing seasons, growers must direct any product produced from HarvXtra® Alfalfa with Roundup Ready® Technology seed or crops (including hay and hay products) only to US domestic use. It is a violation of national and international law to move material containing biotech traits across boundaries into nations where import is not permitted. Growers should talk to their product purchaser to confirm their buying position for this product.

Due to factors outside of Forage Genetics International’s (FGI) control, such as weather, crop production patterns, and other factors, results to be obtained, including but not limited to yields or financial performance, cannot be predicted or guaranteed by FGI. Results are based upon FGI controlled tests and field trials and public trials. Results may vary.

ALWAYS READ AND FOLLOW PESTICIDE LABEL DIRECTIONS. Roundup Ready® crops contain genes that confer tolerance to glyphosate, the active ingredient in Roundup® brand agricultural herbicides. Roundup® brand agricultural herbicides will kill crops that are not tolerant to glyphosate. Roundup Ready® and Roundup® are trademarks of Monsanto Technology LLC, used under license by Forage Genetics International, LLC. HarvXtra® is a registered trademark of Forage Genetics International, LLC. HarvXtra® Alfalfa with Roundup Ready® Technology is enabled with Technology from The Samuel Roberts Noble Foundation, Inc.