A new survey says America's honeybee hives just staggered through the second highest death rate on record, with beekeepers losing nearly half of their managed colonies. But using costly measures to create new colonies, beekeepers are somehow keeping afloat. Thursday’s University of Maryland and Auburn University survey says that even though 48% of colonies were lost in the year that ended April 1, the number of United States honeybee colonies remained relatively stable. Honeybees are crucial to the food supply, pollinating more than 100 of the crops we eat, including nuts, vegetables and fruits. Scientists blame parasites, pesticides, starvation and climate change for large die-offs.
My impression is the problem is primarily pesticide use is too ubiquitous. Help normalize pesticide free environments and you help bees.
In the case of bees, Neonicotinoids are a particular problem.
Edit: Another article
Starting bee gardens and planting bee-friendly seeds wherever you can (provided they are not invasive to your area!)
But lots of seed companies offer “bee blends”, westcoastseeds offers seeds for this purpose. - Im sure similar wildflower mixes are available in different regions and countries.
I know this doesn’t eliminate pesticide use but every pesticide free patch of flowers helps