Q: Please recommend a ready to use houseplant spray containing insecticidal soap or pyrethrin that you suggested using to get patio plants ready to move indoors. I have several large geraniums, doing ...

TAMMY: Pyrethrum is a natural insecticide, made from plants in the now-obsolete genus of daisies that included chrysanthemums and tanacetum. The active chemicals in these plants are called pyrethrins ...

What these two scientists are independently trying to do with the plant in question, Chrysanthemum cinerariaefolium, commonly known as pyrethrum, is to eventually grow large enough quantities of this ...

IN my article published in NATURE of June 27 (p. 720) on “Biological Assay of Insecticidal Sprays”, it was stated that a solution of pyrocatechol in ether was recommended as a stabilizer for the ...

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 ...

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 ...

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 ...