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Posts Tagged: value

Valuable Pollinators

I was lucky enough to attend the recent “Pollinator Gardening” workshop hosted by the California Center for Urban Horticulture at UC Davis. Part of CCUH’s Your Sustainable Backyard series, the day devoted to pollinators was fascinating. I learned a lot, which was the point:

  • Bees are basically wasps that have changed their diets. Wasps = carnivores. Bees = vegans. Nectar is their flight fuel, and they use plant protein (pollen) to feed their young.
  • Boy bees do not sting.
  • Not all bees are social, like European honey bees. Many native bees are solitary, nesting in soil or fallen trees. Very few bees make honey.
  • There are 20,000 species of bees, on a world scale. This is more diversity than all mammals and birds combined.
  • In North America there are 4,000 species of bees.
  • In California there are 1,600 species of bees.
  • In Yolo County, there are 1,300 species of bees.
  • The value of pollination is $220 billion a year in the U.S. European honey bees’ pollination value is $14.6 billion a year. Wild bees? $13 billion a year.

So, I got it! Wild bees are quite helpful pollinators after all. But they are under threat from habitat loss, the intensification of agriculture, new and persistent diseases, and pesticides. It was made plain during the workshop that we, as urban gardeners, should to do our part to provide bee-friendly areas in our yards. How do we do that?

We were told that bees need habitat, not just flowers. They need bare soil, so don’t use too much mulch. They also need sun, plenty of water, rocks and a diverse selection of pollinator plants (native plants work best). You can even make your own bee houses out of reed cane bundles. If you build it, they just may come. (To see a bee-friendly garden, head to UC Davis’ Haagen-Dazs Honey Bee Haven.)

For more information, visit,, or

A female Valley carpenter bee (Xylocopata varipuncta) forages for nectar in a Jerusalem sage (Phlomis fruticosa) bloom. (photos by Kathy Thomas Rico)
A female Valley carpenter bee (Xylocopata varipuncta) forages for nectar in a Jerusalem sage (Phlomis fruticosa) bloom. (photos by Kathy Thomas Rico)

A male carpenter bee (Xylocopata tabaniformis orpifex) visits a Salvia blossom in a Vacaville garden.
A male carpenter bee (Xylocopata tabaniformis orpifex) visits a Salvia blossom in a Vacaville garden.

Posted on Thursday, May 24, 2012 at 2:11 PM
Tags: bee-friendly (1), bees (84), habitat (2), pollinators (44), threat (1), value (2), wasps (8)

Media report on value of ag and ag research

As Californians wait patiently today for the state budget vote, scheduled for 4 o'clock this afternoon, it's a good time to review the value of agriculture and agricultural research as it has been reported in the press in recent days.

Last Wednesday, Western Farm Press ran an Almond Board press release about a symposium that took place earlier this summer in Sacramento. At the symposium, UC ANR associate vice president Rick Standiford noted that there has been a 24 percent reduction in UC Agricultural Experiment Station researchers and Cooperative Extension staff since 1990.

The story said UC's academic staff is expected to shrink through retirement with 66 percent of UC Extension farm advisors set to retire in the next 10 years.

Almond yields have increased 86 percent over the last two decades largely because of improved horticulture techniques developed through publicly-funded agricultural research and development and extension.

A consequence of a slowdown in growth of public research spending "could be a decline in global competitiveness for California agriculture," the story said.



Last week, AgAlert ran a story on California's agricultural revenue in 2007, which reached $36.6 billion, an increase of 15 percent over the previous year's total of $31.8 billion.

The news about the industry isn't all good, however. Reporter Christine Souza sought comment from the director of the UC Ag Issues Center, Dan Sumner, about farmers' struggle to pay for increased input costs, such as fuel and fuel-based products, water, wages, equipment, government fees and taxes.

"What has everybody worried is that if output prices start coming down they are concerned that the input prices, particularly anything with an oil base or fossil fuels base, will stay high and that includes fertilizer and all of the energies," Sumner is quoted.

Posted on Monday, September 15, 2008 at 12:59 PM
Tags: research (10), Sumner (13), value (2)
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