Another question.
Since you apply the mineral oil to the top bars fairly regularly, in
time they will get saturated with oil. Even food grade mineral oil will
oxidize or degrade over time. How long before that happens? What are the
by-products of the breakdown and are they toxic?
With the other mite controls, we remove the control after time or the
bees eat it up. With the oil, it stays in the wood and the hive for
years. Maybe plastic frames will solve that problem, but there are many
questions remaining.
Bill Truesdell
Bath, ME