Subject: | |
From: | |
Reply To: | |
Date: | Sun, 26 Feb 2023 04:25:27 +0000 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
>That behavior is seen in many studies of developing resistance.
Dr. Martin suggests that mite counts will continue to drop in similar fashion to other resistant populations as resistance traits become more entrenched in the population. From the study in question:
Therefore, we predict that the worker infestation rate in Cuba will continue to fall over the next 20 years, especially if high mite-removal rates persist.
From the official apicultural guide ( https://eac.unr.edu.ar/wp-content/uploads/archivos/Apicultores%20y%20salud%2013-11-2013%20digital_compressed.pdf) their core breeding matrices are as follows:
Select and reproduce the most productive hives, with the highest honey yields (>50 kg/year), the least swarming, the least defensive, with the best hygienic behavior and those with infestation rates by Varroa destructor in adult bees less than 5%, with colonies that can be selected to provide biological material for reproduction in queen bee rearing centers (maternal and paternal), intended for the process of genetic improvement of the population.
So it looks like the breeder stock at a minimum might be classified as resistant (while still acknowledging that tolerance may be working in tandem).
***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software. For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html
|
|
|