How pyrethrins kill insects and the variety of modern pyrethroids

How pyrethrins kill insects and the variety of modern pyrethroids
The fall of DDT and the rise of pyrethrin derivatives
The comeback of pyrethrin research
Comparing the insecticidal activity of DDT and pyrethrins
The chemical structures of pyrethrins and insecticide use between the World Wars
Chrysanthemum flowers as an insecticide