American Heritage® Dictionary of the English Language, Fourth Edition
- n. An insecticide composed of a genetically altered bacterium (Bacillus thuringiensis) that is used to control many kinds of caterpillars that are pests of ornamental, crop, and other plants.
- From New Latin B(acillus) t(huringiēnsis), species name. (American Heritage® Dictionary of the English Language, Fourth Edition)
“The chemical in question, Bt, is technically organic.”
“Coimbatore: An attempt to stage a demonstration against Genetically Modified seeds in the name Bt inside the Tamil Nadu Agricultural University (TNAU) during the visit of the Governor of Tamil Nadu and Chancellor of TNAU, Surjit Singh Barnala created a flutter on Monday.”
“The anti-GM camp had reason to cheer a few weeks earlier as well, when Environment Minister Jairam Ramesh abruptly put a moratorium on an insect-resistant variety of aubergine seed, known as Bt brinjal, on the eve of its much-hyped launch.”
“Inserted genes from a soil bacterium produce an insect-killing poison called Bt-toxin in every cell of the plant.”
“Biotech companies claim that the pesticide, called Bt-produced from soil bacteria Bacillus thuringiensis-has a history of safe use, since organic farmers and others use Bt bacteria spray for natural insect control.”
“Consider corn varieties engineered to produce a pesticidal protein called Bt-toxin.”
“But with genetically modified insect resistant cotton also known as Bt cotton, pesticide use has dropped.”
“If it is a caterpillar, choose Bt, which is a toxin produced by a bacterium.”
“Much of the corn, including a field that farmer Tommie Olckers is checking, contains a bacterium gene, known as Bt, that makes the stalks toxic to an insect pest.”
“Bacillus Thuringiensis produce an insect-killing pesticide called Bt-toxin in every cell of the plant.”
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