The Washington Post cited expertise by Sonja Birthisel, a postdoctoral scholar of weed ecology at the University of Maine, in the article “Whether or not Roundup is safe, the gardener has better options.” More than 18,000 plaintiffs are suing Monsanto, the maker of the herbicide Roundup, alleging cancers related to the product, while the company read more Washington Post cites Birthisel in article on Roundup alternatives