THE insecticidal properties of the flowers of certain species of pyrethrum (Chrysanthemum) have been known for a long period, the very high toxicity of the active principles to insects and their ...

A new study has identified a scent receptor in mosquitoes that helps them sniff out and avoid trace amounts of pyrethrum, a plant extract used for centuries to repel biting insects. These findings ...

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen environmental ...