They proposed that farmers be allowed to plant Bt corn with this new gene on no more than half of their corn acres. Monsanto argued that such a large refuge wasn't necessary, and the EPA agreed.

One of the nation's most widely planted crops — a genetically engineered corn plant that makes its own insecticide — may be losing its effectiveness because a major pest appears to be ...

Too much of a good thing: Consequences of overplanting Bt corn in the US Date: May 28, 2025 Source: Michigan State University Summary: A new study shows that planting too much genetically modified ...

A new study from Michigan State University shows that planting too much genetically modified corn designed to fight off a tough insect – the corn rootworm – especially in the eastern US Corn Belt ...

By comparing root injury in Bt and non-Bt corn, researchers can estimate the efficacy of Bt protection. In the analysis of field trial data, effectiveness fell from 2005 to 2016 for all three Bt ...

John Losey thought his Nature paper might attract some attention, but not the media "whirlwind" of "a good 60 calls" that disrupted his life for a few days. Losey, assistant professor of entomology at ...

In 2003, the first genetically engineered corn hybrid trait lethal to corn rootworms and derived from the bacterium Bacillus thuringiensis (Bt) was introduced. Since then, farmers have extensively ...

The U.S. Environmental Protection Agency announced on Oct. 16 that it had reauthorized commercial planting of genetically modified corn varieties transformed with genes from the bacterium Bacillus ...

A new study from Michigan State University shows that planting too much genetically modified corn designed to fight off a tough insect – the corn rootworm – especially in the eastern US Corn Belt ...

May 28, 2025. MSU has a satellite uplink/LTN TV studio and Comrex line for radio interviews upon request. Why this matters: Too much of a specific type of Bt corn — genetically modified to ...

In eastern states, Bt corn rates were about 50% from 2014 to 2016. If farmers throughout Indiana, Michigan and Ohio had instead planted Bt corn at an optimum 18% rate, they collectively would have ...