One trouble with DDT is that insects get used to it, develop hardy strains that resist the poison. Another trouble is that DDT kills both injurious insects and their natural enemies. In some...
'Science: DDT-Proofed', TIME magazine
“Science: DDT-Proofed,” Past Periodicals, accessed December 4, 2021, https://unsettlingscientificstories.omeka.net/items/show/64866.