First Wambugu isolates the gene that codes for the production of insecticidal pyrethrins in the pyrethrum flower and extracts them.

FORBES: Millions Served

Studies have shown that copper sulfate, pyrethrins, and rotenone all can be detected on plants after harvest for copper sulfate and rotenone, those levels exceeded safe limits.

FORBES: Bittman of the 'New York Times': Always Out To Lunch