Some genetically modified crops are made to have herbicide or insect resistance, making them heartier, and longer lasting.  It is possible this resistance could cross-pollinate with surrounding wild plants, making the wild plants also become herbicide or insect resistant.  This would happen by the wild plant pollinating with the GM crop, and incorporating its resistance gene into its own genetic makeup.  This could create a serious problem because a “superweed” would be created.  It would be very difficult for farmers to control a weed that is resistant to herbicides and insects.  It could also affect the natural ecosystem of the area if one species of a wild plant takes over.  This would affect other wild plants and the insects that feed off them
 

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