As most people who are involved in agriculture know, monocropping is never a good idea and leads to attacks of weeds, viruses and unwanted pests. That’s exactly what is happening with Bt corn which is decreasingly resistant to the rootworm. Given the rise of superweeds, increasing resistance of pests, and increases in the need for chemicals to control these, genetic engineering, like any monocrop culture, is likely to destroy itself from within over time. But how much damage will it do before it disappears, and how will we clear up the mess given extensive cross-pollination?
For a good piece on the rootworm and monocropping, go to;