Re: Derek Mitchell article discussing effect of higher humidity on varroa
silicon completely seals the top;
metal plate - helps to condense the water by cooling off the seal - this is early summer and condensation is very good help for brood rearing;
notice how bees do NOT propolise the film between the combs - NOT needed - the non-permeable seal is already in place
PS: the propolise pushing researchers should watch this video and think - WHY is it bees not propolising the film over the brood nest???
because it is NOT needed and they will not spend the time/effort doing it if the surface is already satisfactory in sealing the nest
Yes - very unhealthy - no propolise ..... - I am being sarcastic now.
For this exact reason they will propolise my burlap completely - to seal it closed.
Former "smoker boy". Classic, square 12 frame Dadants >> Long hive/Short frame/chemical-free experimentations.