Compared to fields where rootworm had not damaged Bt maize, the problem fields had higher levels of continuous maize cultivation in surrounding buffer areas. Corn rows as far as the eye can see in ...

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 ...

That year, Gassmann said he confirmed four fields in which rootworms had developed resistance to Bt corn, and resistance problems have persisted in Iowa ever since. Between 2010 and 2013, Gassmann ...

But the scientists' own recommendations — an advisory panel convened in 2002 by the EPA suggested that a full 50 percent of each corn farmer's fields be devoted to these non-Bt refuges — were ...

Since then, farmers have extensively used "Bt corn" hybrids. Subsequently, multiple field studies have reported Bt resistance in rootworms since 2009, raising doubts about the long-term viability ...

The list of GMO field crops include Bt corn, Roundup Ready soybeans and Roundup Ready corn. • Bacillus thuringiensis is a naturally occurring soil bacterium that produces proteins toxic to insects.

Researchers have pulled together forty years of data to quantify the effects of Bt field corn, a highly marketed and successful genetically engineered technology, in a novel and large-scale ...

A 2011 field study of two of the problem fields identified in 2009 found that D. v. virgifera emergence did not differ significantly between Cry3Bb corn and non-Bt corn 112.

DAVAO CITY — More segments of the agriculture sector are clamoring for the conduct of scientific field trials of genetically modified (GM) organisms to determine if this technology benefits ...

But now a new study finds that farmers who plant Bt corn reduce crop damage and insecticide use in nearby fields of non-genetically e... Get 3 months/99¢ a month SUBSCRIBE NOW Show Search Clear ...