At first, this 1947 ad confused me. “How could wallpaper kill bugs?” I wondered. Then I read the ad and saw that the wallpaper is dipped in DDT.
DDT (“dichlorodiphenyltrichloroethane”) came out in the 1940s. It was used to kill bugs, but like other poisons, DDT didn’t disappear when the bug died. Instead it stayed in the food chain and poisoned other animals… and people!
It’s now illegal to use DDT in countries with responsible governments. But this ad still gives me the chills!