Photo: Josh Cassidy/KQED
A female blue orchard bee forages for nectar and pollen on blue (or purple) tansy. Blue orchard bees are solitary bees that help pollinate California’s almond orchards.
There’s been a lot of attention to honeybees in recent years and to chemicals that may be responsible for the bee die-offs threatening our food supply. But apparently honeybees are just one of the pollinators that benefit the oblivious human race.
Gabriela Quirós reports at KQED, “While honeybees and their buzzing hives and hyper-fertile queens get all the press for pollinating our food supply, the hard-working blue orchard bee is one of 4,000 bee species native to North America that does its solitary work in relative obscurity. That is, until now.
“In the video, you can see how this bee builds its nests, alternating mud and a purple nectar-pollen mixture in hollow, skinny spaces. The blue orchard bees are preparing a purple lunch box of sorts for their offspring so they have food to eat in the tunnel. …
“But the blue orchard bee is more than a pretty face. It is an efficient pollinator that some farmers are exploring as a possible alternative or supplement to honeybees in sweet cherry and almond orchards.
“Honeybees are more prolific, but 40 to 50 percent of colonies die every year, according to a yearly National Honey Bee Survey, taken by universities and sponsored by the U.S. Department of Agriculture and the California Almond Board, among others. Enter the blue orchard bee.
” ‘This is, I think, the moment for these bees to shine,’ says entomologist Natalie Boyle, who studies blue orchard bees at the USDA in Logan, Utah. …
“Research has found that 400 female blue orchard bees are as effective at pollinating almonds as the more than 10,000 bees in a honeybee hive, says Boyle.
“Finding other bees that could work side by side with honeybees could offer what she calls ‘pollination insurance.’
“But it’s not a simple swap. Blue orchard bees take their time reproducing. They lay only about 15 eggs a year, while the queen honeybee can lay 500 or more a day. And the blue orchard bees wander off, rather than return to a hive every night.” More here.
There’s an awful lot we don’t know about insects because we just don’t pay attention. Maybe if we paid more attention, we would understand that we need them.
It’s interesting to know that all the weight of pollination doesn’t rest on honeybees . . . but we still need to do what we can for the honeybees!
We need to do what we can for all garden insects, starting with ending the use of lawn chemicals. Wouldn’t it be nice to see fireflies in suburbia again?