Europe recently banned a class of pesticides as, according to their information, these were killing off millions of bees. This ban has been put for next two years on neonicotinoids, a controversial class of insecticides. It was initiated in May by the European Commission.

There were claims that this chemical is resulting into the global crash of bee populations, and therefore should not be used for some time to confirm the actual situation.

But a legal fight has been initiated against this ban. One of the world's largest chemical companies, Bayer Crop Science, a subsidiary of Bayer AG, has challenged this ban.

According to Bayer Crop Science, it is absolutely "unjustified" to ban a chemical without much information in hand. Moreover, it has asked the commission to mind its own business as this is something beyond their existing regulatory framework.

The German chemical giant also said that without considering other relevant factors, it is not fair to take any such action.

There are several other factors responsible for bee die-offs, like extreme environmental and climatic factors, loss of habitats and lack of genetic diversity. All of these also lay an influential impact on the bee survival.

And the commission has not taken into account many of them.