World War II Created a New Generation of Pesticides During this time DDT insecticide was developed by the Swiss,changed the nature of pest control worldwide. The extraordinary effectiveness of DDT and the related materials that followed it:lindane,dieldrin, chlordane,2 4-D,all slowed or stopped research and development of other,methods of pest control.World War II Created a New Generation of Pesticides During this time DDT insecticide was developed by the Swiss, changed the nature f l ld d of pest control worldwi de. The extraordinary effectiveness of DDT d h l d l h DDT and t h e related materials t hat followed it: lindane, dieldrin, chlordane 2 4 chlordane , 2 4 -D all slowed or D , all slowed or stopped research and development of other methods of pest control other , methods of pest control