rotenone a natural insectiside is obtaines from

1. azadirachta indica
2. derris sp.
3. bacillus thuringiensis
4. phytophthora palmivora

The correct option is 2.
Rotenone is an odourless, colourless, crystalline ketonic chemical compound used as a broad-spectrum insecticide, piscicide, and pesticide. It occurs naturally in the seeds and stems of several plants, such as the jicama vine plant; and the roots of several members of Fabaceae.