Comparative control of three families in one of which the queen is in an isolator on 2 frames.

 In the evening, it was  carried out control procedure in E3, E4, E5 hives in order to find out the difference in brood care between E3, in which the queen is in the isolator, and the other two hives. It was already dark outside at that time, and the temperature was about + 14-15C.

It can be seen that brood care signal in E3, although red, is closest to the zero line. Which corresponds to the fact that it has the least brood. And in E4 there is much more brood than it the other hives, which is noticeable even on the graph in General State Control mode.