Speaking as a geneticist, these GM traits are the most important tool in our toolbox, and it needs to be rolled out as fast a possible.<p>It's a matter of evolution, and stopping resistance. Like HIV, cancer, antibiotics, or any other biologic system, there is a necessity for multiple modes of action.<p>Plants evolve very slowly. This is good. It means they adapt to things like roundup very slowly. It took decades to adapt to glyphosate, and even today it is still widely effective. However, since it is a single mode of action, resistance is inevitable.<p>The trick is that if you increase modes of action, you raise the cost of natural selection to the point that the species simply cannot adapt. Ever.<p>We need glyphosate, 2,4-D AND dicamba resistance, all together so that we can stop any one chemical from being resistant. Stopping resistance means having a full toolbox, and a full effective toolbox means less overall chemicals on fields.