It's pretty known that the bees are disappearing. Bees are the main group of pollinators of the agricultural ecosystem; almost 80% of the foods we consume every day depend on bees. In the European Union, hives have fallen by over 50% in recent years.In Italy this figure stands at an average of 25% per year, while in the United States at 30%.
What are the consequences of bee deaths?
Recently, American and British scientists are thinking about extreme remedies: the robot bee, a $ 10 million project. On the other side of the world (China), paradoxically, pollination of bees is increasingly replaced by manual pollination of flowers.
But why are the bees dying?
Diseases, pests, chemicals and environmental aspects are the main factors.
Diseases and pests play an important role. For example, the Varroa Destructor parasite weakens the immune system of the bees, even leading to the death of the colony.
The use of pesticides is a danger for both honeybees and wild bees. In fact, it involves the growth of crops contaminated by pesticides. Consequently the spontaneous flora that grows on the margins of cultivated fields is contaminated, and therefore also the insects that take care of their pollination.
Bees are the pollinating insects par excellence, so it is not surprising that in recent years there have been deaths of this species in the vicinity of a large number of crops accumunata from the use of pesticides harmful to this insect.
Finally, the environment is often not a trusted partner. In particular, excessive heat makes it difficult for plants to produce nectar and pollen for bees, thus impoverishing their pollination.
Furthermore, disappearance of natural habitats and climate change have a negative impact on the survival of bees and all other pollinating insects.