Bee die-off, new cause discovered. In recent months, experts have focused their attention above all on the use in agriculture of neonicotinoids, the killer pesticides of bees. Unfortunately, the decline in the bee population appears to be due to numerous factors. Researchers have identified a new cause.
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Death of api, discovered one new cause. In recent months, experts have focused their attention above all on the use of neonicotinoids, the killer pesticides of bees. Unfortunately, the decline in the bee population appears to be due to numerous factors. Researchers have identified a new cause.
A new risk factor for bees is added to neonicotinoids, parasites, poor nutrition and cell phone boosters: pesticides and fungicides able contaminate pollen that bees collect to feed the hive. The study in question was conducted by researchers from the University of Maryland and the US Department of Agriculture and received its official publication in the journal Plos One.
La new discovery helps clarify why large numbers of bees keep dying as well as identify the causes of sudden bee death in an entire hive. The researchers who carried out the study took pollen from hives present on the east coast of the United States and have given it to bees in good health. In these bees, a decline in the ability to resist a was detected parasite which causes one of the phenomena related to the death of bees, the Colony Collapse Disorder.
The pollen used contained an average of 9 different pesticides and fungicides. Bees that had been fed the pollen contaminated with the fungicides had a three times higher risk of becoming infected with the deadly parasite. Research shows that i fungicide stiano having a strong effect on the phenomenon of bee die-off, weakening them.
The neonicotinoids had caused a real extermination of bumblebees in Oregon. The threat they represent is now well known. Now it's the turn of the fungicides. Their role in the death of bees allows us to understand how the phenomenon is due to a whole set of toxic substances which until now had not been investigated.
According to studies conducted by experts, the exposure of bees to pesticides is much greater than one might think. In fact, contaminated pollen did not come only from cultivated fields, but also from plants e wild flowers.
In the analyzed samples they were identified 35 different pesticides and a high presence of fungicides. The bee population is steadily declining in the United States. An urgent s should now be added to the ban on neonicotinoidstop of fungicides and all harmful pesticides.
Marta Albè
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