Accidental weed creation by genetic engineering

Nature 
With the creation of genetically engineered crops comes the risk that some of these engineered plants may acquire the traits of weeds and escape from cultivation with profound effects on agriculture and the environment. They would be especially dangerous if, as in the case of potatoes for example, they were engineered to be tolerant of frosts, blight and herbicides.
Aggravates 
Value(s) 
Type 
(E) Emanations of other problems