The herbicide glyphosate is better known by its commercial name, Roundup.
By any name, it has many critics, including the organization Moms Across America.
MAA recently tested ten California wines for evidence of glyphosate, and found it in all ten--even in a wine from an organic vineyard. The wines came from Napa, Sonoma, and Mendocino counties.
MAA Director Zen Honeycutt explains the testing process, and what her group intends to do with its findings.