Repost from UCWeedScience blog One of the major research and extension areas in my program is weed control efficacy in orchards and vineyards.  During the 2012-13 growing season, we conducted about 50 herbicide efficacy trials in commercial orchards or research station sites.  Today I thought I’d share some data from 2012-13 orchard weed control efficacy experiments comparing various tank mixtures and sequential applications of Matrix (rimsulfuron) and Alion (indaziflam).  This work was primarily funded by the Almond Board of California, Bayer CropSciences, and DuPont.