A new varroa treatment will be available in the USA soon which might mean that it comes to the UK at some point afterwards.
"Amiflex is a 7-day treatment that can be used 1-4 times a year. The new gel formulation provides a faster release of amitraz than plastic strip applications, achieving 94% efficacy on the 3rd day of application and 100% on the 7th day in broodless colonies. Amiflex also ensures a quick knock-down of varroa mites in the presence of brood with one or two applications, according to the infestation rate".
https://www.veto-pharma.com/products/amiflex/
I know that many beekeepers don't like using 'hard' chemicals however it may have it's uses from time to time if it is approved for use here.
"Amiflex is a 7-day treatment that can be used 1-4 times a year. The new gel formulation provides a faster release of amitraz than plastic strip applications, achieving 94% efficacy on the 3rd day of application and 100% on the 7th day in broodless colonies. Amiflex also ensures a quick knock-down of varroa mites in the presence of brood with one or two applications, according to the infestation rate".
https://www.veto-pharma.com/products/amiflex/
I know that many beekeepers don't like using 'hard' chemicals however it may have it's uses from time to time if it is approved for use here.
May your bees read the same books as you do.