An adequate and cost effective supply of honeybees for pollinating crops into the future is uncertain. Luckily, there are better alternatives than the honeybee! Pollen bees (all bees that are not honeybees) and other pollinators (flower flies, moths, butterflies) can help alleviate or prevent pollination shortfalls.
In addition, there are many problems with keeping honeybees:
1) honeybees are not good pollinators. They are efficient pollen collectors but not pollinators because the pollen does not fall off of them easily. Native bees pollinate 2-3 times better than honeybees.
2) at their seasonal height, honeybees can reach 80,000 individuals per hive. they communicate so well through dance that they can outstrip an area of pollen and nectar before the pollen bees (mason bees, cellophane bees, sweat bees, etc) can fully take advantage (Kato et al. 1999; Dupont et al. 2003; Paini 2005; Hudewenz & Klein 2013). According to Cane & Tepedino (2017), an apiary of 40 hives removes the equivalent of the larval mass pollen provisions of 4,000,000 solitary bees.
3) honeybees originated from Europe so they co-evolved with the plants growing in Europe. In the United States, the honeybees have been found to preferentially pollinate these non-native species, increasing the seed set and spread of these at times invasive plants (Barthell et al. 2001).
4) honeybees have been known to transmit diseases and parasites to native bees, including bumble bees (Hoffmann et al. 2008; Graystock et al. 2016).
, , , . 1999. Impact of introduced honeybees, Apis mellifera, upon native bee communities in the Bonin (Ogasawara) Islands. Researches Population Ecology 41:217–228.
, . 2005. Commercial honey bees (Apis mellifera) reduce the fecundity of an Australian native bee (Hylaeus alcyoneus). Biological Conservation 123:103–112.