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Traits in Agriculture » Pest Resistance

  Posting date: December 18, 2017
Cases of Pest Resistance to Bt Crops Increased Five-fold From 2005-2016
A study analyzing global patterns of field-evolved resistance to Bt crops over the last two decades has found that the number of cases of pest resistance to Bt proteins increased from 3 in 2005 to 16 in 2016.
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  Posting date: November 23, 2017
The Fall of GM Cotton in India
A report explores the rise and fall of GM cotton in India as more Indian farmers return to organic cotton. Worldwide, GM cotton farmers are struggling with increased pesticide use to deal with the emergence of pest resistance and secondary pests.
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  Posting date: November 16, 2017
Bt Toxins in GM Crops More Toxic Than Natural Bt Toxins
A peer-reviewed analysis comparing GMO and natural Bt proteins has found clear differences between the two, and that the process of inserting Bt toxins into crops causes them to be more toxic and active against many more species.
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  Posting date: November 06, 2017
Companies Admit Failure of Cry1F (Bt) Gene to Control the Western Bean Cutworm
In an unprecedented move, DuPont Pioneer has changed its marketing language to state that Cry1F, the Herculex I Bt trait, no longer protects corn against the western bean cutworm. Dow AgroSciences is following suit.
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  Posting date: August 10, 2017
Bt Cotton Being Field-Trialled in Swaziland Despite Poor Performance in Africa
Bt cotton is being field-trialled in Swaziland in spite of its poor performance in Burkino Faso and South Africa. Civil society is calling for a return to ecological cotton production which is proving successful in West Africa.
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  Posting date: August 08, 2017
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.
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  Posting date: August 07, 2017
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.
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  Posting date: February 17, 2017
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.
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  Posting date: January 13, 2017
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.
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  Posting date: November 17, 2016
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.
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