ISAAA, 9% of the world's maize crop is lost to insect pests.

ECONOMIST: Genetic modification works

When natural evolution causes weeds or pests to resist their poisons, which their crops are resistant to, they simply breed a new crop and create a new poison to kill the pests.

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And because the pesticide will be everywhere in the crop, it is predicted that the pests will rapidly acquire resistance to it.

BBC: Prince Charles speaks out against GM food

But one of the issue if you have with that is for disease and pests, if you want to have crop rotation which when you only have one place to grow something it's kind of like, am I going to take three years off growing tomatoes.

NPR: Vegetable Gardening On A Budget

These technologies increase crop yields and offer a variety of crop-specific benefits, including better nutrients, improved resistance to pests, drought-resistance and other characteristics that allow farmers to grow more with less environmental impact.

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Mars, along with Mondelez, has also joined with the London-based International Cocoa Organization to tackle the West African cocoa pests and diseases that cause more than 40% of global crop losses and are threatening future production in the key growing region.

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