The alternate pollinators have been studied in blueberry fields and the same result will come from the study in cranberry fields. They are great pollinators but you cannot get the numbers that honeybees can deliver. Plus, they are very expensive and require the grower to get into the bee breeding business. In the blueberry studies, if I recall correctly, you are looking at factors of 10-25 in increased pollination costs to the grower. Plus the study had honeybees pollinating at the same time as the alternate pollinator and the selling point was increased yields using the alternate pollinator. Since the blueberry growers still do not know what the best hive density per acre is, even that result is suspect. Bill Truesdell Bath, ME