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# Quick evaluation of the number of adult bees is also done in conjunction with oxalic acid treatment. Notes are made on how many bee ways are occupied by bees in every colony. This is also a preliminary estimation for individual colony management in June.
In Finland, on [[Parainen Island]], the beehives are not opened for a proper inspection until very warm weather, between 15 and 17 ℃, occurs. This happens many times and as late as in June. The brood area (the frames) is kept strictly in the same order during all of spring and during the early summer season.
