(USDA/ARS) — Add yet another use for cornstarch—besides thickening soups and gravies, making adhesives, soothing skin and removing stains. Agricultural Research Service (ARS) scientists in Peoria, Illinois, are now using the versatile commodity to make products that can fight insect pests, prevent disease and decay and impart water resistance to surfaces. Underpinning that effort is the team’s use of patented …