Chemical weapons "are the most difficult because Iraq, with its food situation, necessarily must be allowed to produce pesticides for bugs and rats," he said.
Some modify the plant's ability to produce natural pesticides while others affect the nutritional value of the crops themselves.
The site had produced pesticides under the ownership of successive manufacturers until its closure.
Besides the factory making castor oil, the second rebuilt factory is believed to be producing pesticides and herbicides.
Chloroform is used as a solvent in the pharmaceutical industry and for producing dyes and pesticides.
Degesch produces pesticides used against weeds and insects.
Dr. Ames attempts to get mileage from pointing out that plants, including vegetables we eat, produce "natural pesticides."
Phenyl acetone is used as an intermediate to produce pesticides and anticoagulants.
Here, 30,000 workers in state-operated plants produced film, paint, aluminum and pesticides.