Transgenic crops like - corn, tomato, soybean, cotton, potato, grapeseed, squash, beets, papaya, rice, flax, maize and chicory have been approved for commercial production in the USA. The most widely grown are “Bt” corn and cotton and glyphosate-resistant soybeans. Bt corn and cotton have had DNA from a naturally occurring insecticidal organism, Bacillus thurin-giensis, incorporated into their genome; it kills some of the most serious insect pests of these crops after they feed on the plant, while beneficial insects are left unaffected.