(Phys.org) —The popular new strategy of planting genetically engineered crops that make two or more toxins to fend off insect pests rests on assumptions that don't always apply, UA researchers have discovered. ...

Biology - Ecology

Mar 29, 2013 5 / 5 (1) 22 |

(Phys.org) -- Pests are adapting to genetically modified crops in unexpected ways, researchers have discovered. The findings underscore the importance of closely monitoring and countering pest resistance to ...

Biology - Ecology

Jun 20, 2012 4 / 5 (4) 1 |

(Phys.org) -- Because they can modify plants to either produce better fruit or in many other cases ward off disease and pests, researchers genetically alter crop plants to increase yields without adding additional ...

Biology - Ecology

Jun 14, 2012 2.4 / 5 (5) 4 |

Genetically modified crops that produce insect-killing proteins from the bacterium Bacillus thuringiensis (Bt) have reduced reliance on insecticide sprays since 1996. These proteins are lethal to some devastating ...

Biology - Ecology

Jun 03, 2012 not rated yet 4

(Phys.org) -- The discovery that more Western corn rootworms are resistant to the toxin contained in widely planted transgenic corn has sparked a warning that farmers must change tactics or lose a valuable management tool ...

Biology - Ecology

Apr 23, 2012 not rated yet 0

One of the most successful strategies in pest control is to endow crop plants with genes from the bacterium Bacillus thuringiensis, or Bt for short, which code for proteins that kill pests attempting to eat ...

Biology - Biotechnology

Oct 09, 2011 4 / 5 (3) 20 |

The toxin produced by the bacterium Bacillus thuringiensis (Bt) is a popular insecticide used to control pest moths and butterflies, and in some GM pest-proof crops. In a study published in the open access journal BMC Bi ...

Biology - Cell & Microbiology

Mar 04, 2009 5 / 5 (1) 0