We recommend using bumblebees in combination with honeybees for the pollination of your cherries.
The Biology of Cherries
Sweet cherry (Prunus avium) is primarily grown for the consumption of the fresh fruit, whereas sour cherry (Prunus cerasus) is more generally grown for use in cooking. Almost all sweet cherry varieties require cross-pollination, and must be grown with a suitable pollenizer cultivar. Most of the sour cherry varieties are self-fertile, and do not require cross-pollination to set fruit.
Both sweet and sour cherries require pollination from a suitable pollinator, such as a bumblebee, with wind alone being unable to provide effective pollination. Even in self-fertile varieties, bees are important for the transfer of pollen from anther (♂) to stigma (♀). Bumblebees show high mobility throughout orchard crops, and perform cross-pollinate well, making them particularly useful in sweet cherry varieties. Sweet cherries generally flowers earlier in the season, when the adverse weather conditions are more suited to bumblebees than honeybees.
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