Tag Archives: Bt corn

Monsanto GM Corn in Peril: Beetle develops Bt-resistance

By Rady Ananda
Food Freedom

Nature herself may be the best opponent of genetically modified crops and pesticides.  Not only plants, but insects are also developing resistance.  The Western rootworm beetle – one of the most serious threats to corn – has developed resistance to Monsanto’s Bt-corn, and entire crops are being lost. [Image]

Farmers from several Midwest states began reporting root damage to corn that was specifically engineered with a toxin to kill the rootworm.  Iowa State University entomologist Aaron Gassmann recently confirmed that the beetle, Diabrotica virgifera virgifera, has developed resistance to the Bt protein, Cry3Bb1.

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New Study: Bt gene retards growth, causes sterility in GM crops

First planted in the U.S. by Monsanto and in China by the Chinese Academy of Agricultural Sciences in 1997, transgenic crops using the Bacillus thuringiensis gene that makes the Cry1Ac protein include cotton, rice, corn (maize), tomatoes, and soybean, which are grown in 19 nations. See chart at bottom. ~Ed.

By The Telegraph
Calcultta, India

Gene alarm on GM crops

New Delhi, June 2: Indian scientists have discovered that the genetic modification of plants with a gene already used in crops worldwide may severely damage the plants, a surprising finding that may stir a debate on current crop biotechnology science.

The scientists at the University of Delhi have shown that inserting a bacterial gene that makes a protein named Cry1Ac into genomes of plants appears to cause developmental defects, growth retardation and sterility in the plants.

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