Genetically modified crops may produce super weeds

Lead: London, Feb 4 - farmers who plant genetically modified rapeseed may be planting a new super weed that is resistant to all herbicides except the most powerful herbicide, the UK government's wildlife advisory group said on Tuesday The report, published in the British journal Nature Science, based on research on three genetically modified canola seeds in Canada, shows that the pollen of these seeds can be cross pollinated with other types of canola seeds during the harvest season, thus being resistant to a variety of herbicides So by the time the next crop is planted, the seed itself will be a weed, and it will be difficult to eliminate the rapeseed crop by the next year, of course, farmers will rotate corn the next year, Brian Johnson, a biotechnology consultant for nature, told Reuters The last thing farmers want is to plant corn with rapeseed in the middle This is becoming an agricultural problem, farmers have to use other herbicides to control these super weeds, but the new herbicides are not so beneficial to the environment and more toxic Johnson said that if the UK approved the planting of genetically modified crops in the UK, then the government should limit the number of types of herbicide seeds in order to prevent the emergence of super weeds in the UK He said he hoped to limit the number of species to one, rather than three, as in Canada He also urged the European Commission to reconsider its recent proposal to set a limit of 1% for genetically modified seeds contained in traditional seeds, because this is not a good idea If it does, it is possible that the 1% contains three different genetically modified seeds If the content thresholds set for these seeds are agreed, then the European Commission is equivalent to introducing problems in Canada into the EU Yk9