1.   Another variety produces a natural pesticide.

2.   Corn, soybeans, cotton, potatoes and other crops have all been engineered with a bacterial gene that contains a natural pesticide.

3.   Foods are considered organic if they are cultivated using only natural pesticides, such as plant extracts and bacteria that attack crop pests.

4.   For example, some evidence suggests that corn that has been modified with a gene that acts as a natural pesticide could be poisonous to monarch butterflies.

5.   In Massachusetts, the state is planning to use Resmethrin, a synthetic form of a natural pesticide found in chrysanthemum flowers.

6.   Like the synthetic pesticides, about half the natural pesticides that have been tested are carcinogenic in rodents.

7.   Many of these chemicals are natural pesticides, others kill bacteria and still others just taste bad enough to keep animals from eating them.

8.   Other companies, seeking everything from fragrances to natural pesticides, followed suit.

9.   The corn produces a natural pesticide designed to kill a major corn pest, the European corn borer.

10.   The many plants that people eat also contain thousands of natural pesticides, produced to repel insects and other predators.