2. It is very likely that the use of specific herbicides would interrupt the food supply chain for insects, small mammals and birds. The commercial use of GM crops in agriculture must not put unacceptable pressure on our countryside and wildlife and prejudice the goal of maintaining and where possible enhancing farmland biodiversity.
3. Herbicide tolerance, which is one of the main traits being engineered into crops, may cause serious problems as a result of spreading to neighbouring crops and related wild plants.