Biotech Updates

Bt Technology Protects Cotton from Caterpillars

February 4, 2011

Demonstration plots of genetically modified (GM) Bt cotton were planted side by side with non-GM cotton in the field of Edisto Research and Education Center in North Carolina to showcase the destructive power of bollworm in cotton. Clemson University entomologist Jeremy Greene and colleagues planted the non-Bt cotton spelling the word "Tigers" in the field.

There were no insecticides applied during the course of the experiment. As the cotton plants were close to harvest, aerial photographs were taken which clearly showed how effective Bt cotton is against the bollworm in North Carolina. "We know what they (caterpillars) can do to non-Bt cotton versus Bt cotton — the photographs speak for themselves," Greene said.

The original news with colored photographs of the experimental site can be seen at