Quoted from the proverbial HM (no not the thymol king - "horse's mouth", better known to all as H@MB):
"It is correct Api Life Var will melt plastic, but this only happens if the
tablets come directly into contact with the hive. To prevent this happening
we recommend part of the packet is used to prevent direct contact. This
method was given to us by the manufacturer who has assured us it will not
have any impact on the efficiency of treatment. The following words appear
on our website to warn customers of the risk:
"Please note Apilife Var will melt plastic if it comes into contact with it.
The way to prevent this is to use part of the packet the tablets come in by
placing a square of it above the tablet and if using plastic frames do the
same underneath. The manufacturers have approved this method. It is only
direct contact with the tablet, which can cause melting. The vapours given
off by the tablet do not cause any problems."
We have found Api Life Var to be a very effective varroa treatment which is
why we recommend it, despite the potential risks - although the degree of
melting caused by the tablet is only cosmetic."
