Figure 2 shows the type of varroa monitoring method used by commercial and small-scale beekeepers in 2017. Survey respondents could reply with more than one answer. Commercial beekeepers reported 20 cases of the sticky board method, 69 cases of the alcohol wash method, 19 cases of other and 21 cases of no monitoring for varroa. Small-scale beekeepers reported 53 cases of the sticky board method, 27 cases of the alcohol wash method, 28 cases of other and 36 cases of no monitoring for varroa.

2018 Ontario Apiculture Winter Loss Survey