Chinese Farmers Discontented with Bt Cotton After 15 Years

This study appraises farmers’ practices, performance and opinions 15 years after the commercial release of Bt cotton in northern China. It finds that farmers are discontented with their low returns and struggling with secondary pests. […]

Hard Lessons from 15 Years of Bt Cotton in India

After 15 years of cultivation, India’s foray into Bt cotton holds clear precautionary lessons relating to GE crops, and highlights the need to protect and conserve traditional crop varieties. […]

Pesticides in Bt Cotton Cultivation Still A Health Hazard to Farm Workers

While Bt cotton cultivation may have educed the quantity of highly toxic pesticides used in India, the continued use of pesticides on Bt cotton farms still poses significant health risks to farm workers. […]

Corn Earworm Develops Resistance to Multiple Bt Toxins

A new study has found field-evolved resistance in a major corn pest to multiple Bt toxins in the U.S, showing up the failings of Bt crops. […]

U.S. Entomologists Call on Seed Industry to Admit Failings of GM Herculex Corn

Six US entomologists have written an open letter to seed companies asking them to change their marketing claims and label language to reflect the widespread failure of Cry1F (Herculex I) trait in controlling the western bean cutworm. […]

More Research Needed on the Effects of Bt Crops on Aquatic Ecosystems

A recent review finds that there are significant knowledge gaps on the fate of Bt crops and their potential effects on aquatic systems and identifies several important issues for further research. […]

Implications of Burkina Faso’s Phase Out of Bt Cotton

An article discusses the reasons for the failure of Bt cotton in Burkina Faso and the implications for GE crop uptake by other African nations. […]

Broad-Spectrum Resistance to Bt Toxins in U.S. Western Corn Rootworm

New research has found broad-spectrum resistance to Bt toxins in the western corn rootworm pest in the US, raising concerns about the long-term durability of Bt crops for the management of insect pests. […]

Refuge-in-a-Bag Strategy for Bt Corn Increases Risk of Insect Resistance

A growing body of academic research shows that the practice of “refuge-in-a-bag” may actually increase the risk of Bt resistance in above-ground insect pests. […]

Bt Toxins Can Harm Non-target Organisms, With Stronger Combinatorial Effects

Bt toxins conferring insect resistance in GM plants can have adverse effects on non-target organisms in an aquatic ecosystem, whether singly on in combination with other Bt toxins, highlighting the importance of assessing combinatorial effects. […]