Q: Please recommend a ready to use houseplant spray containing insecticidal soap or pyrethrin that you suggested using to get ...

DDT, the “wonder insecticide” that had millions of dollars ... They should contain both DDT and pyrethrum (or some similar toxicant). The pyrethrum knocks flies and mosquitoes down quickly.

In ancient Persia (current-day Iran), the natural insecticide Pyrethrum, made from dried Chrysanthemum ... pesticides that ...

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 ...