Quinolactacide, a New Quinolone Insecticide from<i>Penicillium citrinum</i>Thom F 1539

Abstract

By a screening program searching for new pesticides from fungal sources, an insecticidal compound was isolated from Penicillium citrinum F 1539. The compound, named quinolactacide, was novel and showed 88% mortality against green peach aphids (Myzus persicae) at 250 ppm. Its structure was determined by spectroscopic techniques.