Vet Judy

Birdsfoot trefoil is a popular legume crop in many deer food plot plantings.

Each year, the University of Minnesota conducts field trials to evaluate different varieties of birdsfoot trefoil. Results from last season (2008) were released this past January and are available here (www.maes.umn.edu/09varietaltrials/birdsfoot.pdf).

For northern climates, winterhardiness is critical for a legume like birdsfoot trefoil. Winter injury can vary greatly between varieties.

The tests at Minnesota evaluated varieties for winter injury in 2004, and found no injury in the “Dawn,” “Georgia,” “Norcen” and “Nueltin” varieties. Minimal winter injury was found in the Viking and Roseau varieties in the 2004 test.

The highest yielding variety at the Grand Rapids, MN, test location in 2008 Minnesota trials was a variety called Witt. However, a winterhardy rating for Witt was not listed in the report. The “Dawn” variety of birdsfoot trefoil was the second highest yielding, and has exhibited good winterhardiness.

For the past three years, Minnesota’s reports have recommended the “Norcen” variety of birdsfoot trefoil as an ideal, winterhardy variety performing well in grazing trials.

These test results from Minnesota illustrate the sound information that is available to evaluate varieties for deer food plot plantings. One of the most common mistakes made in deer food plots is planting varieties better suited to another growing zone. As seen by the birdsfoot trefoil test, some varieties that yield very well in both southern and northern zones may not have the winterhardiness needed for the kind of climate and conditions in northern regions.

Always be sure to verify that the crop varieties you are planting in your deer food plot are suitable to your climate.

For All The ABC’s of deer food Plots check out the resources at www.diydeerfoodplots.com

Should you need information on Soybeans, forage oats, rapeseed, chicory and ryegrass, be sure to read the free article.