But now there is hope for the achy knees, sore backs, and tight schedules of strawberry growers. Wool mulch, cleverly named Woolch™, is marketed by the Minnesota Lamb and Wool Producers Association… The results of 10 years of trials have shown overwhelming success of Woolch™ in reducing weeds in strawberry plots.
http://blog-yard-garden-news.extension.umn.edu/2009/05/the-wonders-of-woolch-new-mulch-for.html