The yellow center of the 'killer chrysanthemum' contains a natural toxin that is a powerful insecticide. This flower, the pyrethrum plant, contains a potent chemical that is made into an effective, ...
Pyrethrum, a natural insecticide, is ideally suited to the climate in the foothills of the Virunga mountains where gorillas live Musanze, Rwanda: Tourists flock to Rwanda’s mountains to see its famed ...
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