also DDT, 1943, from dichlorodiphenyltrichlorethane; first made in U.S. by Geigey & Co. if (window.googletag) {googletag.cmd.push(function() { googletag.display('dcomMobileSERPDisplayTopAd-300x250'); });} else {console.error('googletag not defined, dcomMobileSERPDisplayTopAd-300x250');}