Bijensterfte, oorzaken en gevolgen

[From Buzzaboutbees.net Feb 2011]
Varroa mite is one of the biggest threats to honey bee colonies. In the UK, it was first discovered in 1992. Exposure to this pest causes viruses and diseases to be transmitted to honey bees, such as Deformed Wing Virus. But could it be that neonicotinoid pesticides play a role in Varroa too?