How to Kill Roaches Naturally With Sugar and Baking Soda ...
Mix equal parts of baking soda and white granulated sugar, advises the article, "10 Uses for Baking Soda" on This Old House. Steve Tvedten, who holds certifications in pest management, suggests adding powdered yeast or powdered vitamin C to the mixture -- 45 percent baking soda, 45 percent sugar and 10 percent powdered yeast.