Hi
It may has past notice, but Dr James Sainsbury, from Plant and Food research, has done some exciting research that is the closest thing that has been done anywhere in the world to make varroa go away. He compared varroa levels in hives led by queens with two sets of a particular gene and queens without the genes. He got a significant decrease in varroa levels. The genes are naturally found in NZ and you only need a wing clipping to test a queen. If the same experiment was done on a site where the mating's were controlled so the drones also had a high frequency of the gene, is is very probable that this will be enough to make varroa go away.
It may has past notice, but Dr James Sainsbury, from Plant and Food research, has done some exciting research that is the closest thing that has been done anywhere in the world to make varroa go away. He compared varroa levels in hives led by queens with two sets of a particular gene and queens without the genes. He got a significant decrease in varroa levels. The genes are naturally found in NZ and you only need a wing clipping to test a queen. If the same experiment was done on a site where the mating's were controlled so the drones also had a high frequency of the gene, is is very probable that this will be enough to make varroa go away.