18.104.22.168. Hive components
Sufficient space for colony development must be provided. Super(s) are added when bees occupy most combs in the brood box (at least ¾). Super(s) should be removed when bees occupy less than two thirds of the combs in lower super.
It is recommended that hives
in the testing apiary be equipped with screened bottom boards (Fig. 10). They
guarantee good ventilation and allow for easy varroa mortality control. The
size of the hive entrance has to be adjustable according to colony strength,
and time of the year. During winter, a metal mesh / comb should be placed
across the entrance as a protection against rodents. The size of the landing
board is not important. It is recommended that landing boards should be the
same size, but in different colours within the apiary. Regular maintenance of
the landing board is important, since it is the place where disturbances to the
colony can be noticed and recognized (e.g. to prevent robbing). The use of a
queen excluder is not recommended, but if used, it should be placed / removed
on all test colonies at the same stage of development. Feeders do not have to
be in the hives all the time. If feeding is needed, feeders should be placed in
all colonies at the same time and of the same capacity.