[Editors» note: Bt crops have been genetically modified to produce a bacterial protein that kills certain insect pests.] (scientificamerican.com)
Bt crops where the gene from the soil bacterium Bacillus thuringiensis is inserted into the plant DNA as a built - in pesticide to kill certain insect pests. (novaholisticjournal.com)
That said, the U.S. would only allow imports from Columbia if the country's avocado growers adhere to the U.S. government's «phytosanitary» standards to help prevent certain insects from coming into the country. (fortune.com)