Insect resistance to GM crop
AN insect pest that is supposed to be killed by a type of genetically modified cotton crop with an in-built toxin gene has developed resistance and is beginning to spread in parts of the United States, surveys conducted by the University of Arizona have revealed.
This is believed to be the first documented example in the wild of an insect pest becoming resistant to this particular type of GM crop, says the Soil Association.
The bollworm moth is one of the most destructive pests of cotton crops.
The resistant form of the moth's caterpillar was found in a dozen fields in the southern states of Mississippi and Arkansas between 2003 and 2006, when the surveys were conducted.
Bruce Tabashnik of the University of Arizona, who led the research team, said: "What we are seeing is evolution in action. This is the first documented case of field-evolved resistance to a Bt crop."
Source:
News



I’m fed up with talking about the weather, but I can console myself with the fact we have grabbed every opportunity so far and progress is not too bad.