Syngenta produces a pesticide linked to bee deaths. So why has it been allowed to contribute towards research into the collapse of bee colonies?

Why are honeybee colonies collapsing? One hypothesis is that bees are bringing into their hives traces of pesticides called neonicotinoids, whose use has expanded greatly in the past few years. Some scientists believe that these damage the development of the bee larvae, and inhibit the queen's production of eggs. As a result, these pesticides have already been withdrawn from sale in France, Germany, Italy and Slovenia.

But there are, as yet, no certain answers, and most people agree ...

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