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Traits in Agriculture » Pest Resistance

  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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  Posting date: October 20, 2016
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.
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  Posting date: September 14, 2016
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.
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  Posting date: September 13, 2016
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.
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  Posting date: June 27, 2016
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.
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  Posting date: May 05, 2016
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.
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  Posting date: February 02, 2016
Fall Armyworm Resistance to Bt Maize in Brazil, but Sustainable Solutions Elusive
The fall armyworm has developed resistance to two Bt maize strains in Brazil. So-called solutions such as stacked-trait Bt crops and gene-silencing are however unlikely to provide a lasting solution to pest resistance.
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  Posting date: May 19, 2015
The Impact of Secondary Pests on Bacillus thuringiensis (Bt) Crops
A study published this year in Plant Biotechnology Journal focuses on the development and impacts of secondary pests on Bt crops. Insecticide spraying to deal with this problem would undermine the whole rationale for the introduction of Bt crops which was
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