SEATTLE--(BUSINESS WIRE)--Visualant, Inc. (OTCQB:VSUL), a leading provider of disruptive light-based identification, authentication and diagnostic technologies, announced today that Chairman and CEO Ron Erickson will present at the 27th Annual ROTH Growth Stock Conference on March 11, 2015, at 10:30 a.m. PDT at The Ritz Carlton, in Dana Point, California. A live webcast of the Company's presentation will be available the day of the presentation on the investor relations section of the Company's