> Those attempting to breed for resistance need to manage an entire
*breeding
population*, not just some queen bloodlines.
A good example of this is the University of Guelph 'Low Varroa Growth'
program whereby:
*'The *[selected]* queens produced were allowed to open mate at a common
mating yard isolated at least 5 km from other apiaries.'*
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7761820/
A good series of videos outlining their approach and process is here:
https://www.youtube.com/watch?v=UP77P2HckwQ&list=PLhUDH9LkxRdODmcRa2qiAmNtGKv9N80Df
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