- Author: Kathy Keatley Garvey
A day in the life of a single worker bee...
A honey bee tumbles off the flowering catmint (Nepeta) and struggles to right herself.
Her wings tattered, her body battered, she does not buzz away.
Perhaps she is approaching the end of her six-week lifespan--three weeks working inside the hive and three weeks working outside the hive. Bee scientists say that worker bees literally work themselves to death.
As a forager, she likely made about 40 trips a day gathering nectar and pollen. Forty trips a day. It's like going to the grocery store 40 times a day. Oops, forgot something. Got to return to the store.
Bees can forage from a distance of up 5 miles away from their colony, according to Extension apiculturist Eric Mussen of the UC Davis Department of Entomology.
She's just one bee of about 60,000 in the colony. And now, she will not return. She may have eaten something she shouldn't have or may have an intestinal infection, surmised Mussen.
Or maybe she was poisoned by a pesticide, snagged by a bird, bitten by a spider, or ravaged by Varroa mites.
Still, seeing a honey bee tumble off a blossom and die is something we humans rarely observe.
Meanwhile, her sisters keep working the blossoms, tasks needed to keep the colony alive. Back at the hive, the queen bee is busily laying about 2000 eggs a day to replace all the adult bees who die every day.
A day in the life of a single worker bee...
- Author: Kathy Keatley Garvey
It's not "Rise and Shine!" any more.
It's "Sparkle and Shine."
"Sparkle and Shine," a yellow rose related to the Julia Child Rose, drew quite a bit of attention at the UC Davis event, "Roses: the "Eyeconic Weekend," sponsored May 4-5 by the California Center for Urban Horticulture (CCUH) at Foundation Plant Services, 455 Hopkins Road, west of the central campus.
Participants loved it--and so did the honey bees. The bees--probably from the nearby Harry H. Laidlaw Jr. Honey Bee Research Facility--beelined to that floribunda, but they also foraged on many other roses.
CCUH executive director Dave Fujino described the event as quite successful. The good news is that some of the roses are still available for sale. An online rose catalog depicts such roses as Yabba Dabba Doo, Big Momma, Tiddly Winks, Wild Blue Yonder, McCartney Rose, Passionate Kisses, and Oh My!
You can email Fujino at dwfujino@ucdavis.edu with your rose request (and ascertain the availability) and then purchase the roses at the Foundation Plant Services site, corner of Hopkins and Straloch roads, from 4 to 5 p.m. on Wednesday, May 8 and Friday, May 10, Fujino said. (From west Hutchison Drive, take Hopkins Road and then Straloch Road. See map.)
Then it's gearing up for next year's rose days. The event (free admission) is always held the first weekend of May, right before Mother's Day. Guests look forward to touring eight acres of roses, learning rose care at informational/training sessions, and gracing their gardens with their choices.
The bees foraging on the roses are "free" but they won't go home with you because they already have a home!
- Author: Kathy Keatley Garvey
We all take short cuts--short cuts around the campus, to the beach, to a favorite restaurant...
Honey bees take short cuts, too.
We've often watched assorted bumble bees and carpenter bees drill a hole in a long-tubed flower to rob the nectar.
And we've watched honey bees benefitting from this behavior.
Today we observed a carpenter bee, Xylocopa tabaniformis orpifex, engaging in nectar robbing in salvia at the UC Davis Arboretum. Nectar robbing occurs when a bee or other animal circumvents the usual plant-pollinator relationship and "cheats" by entering a flower from the outside to steal nectar, thus avoiding pollination or contact with the anthers.
There's excellent information on bumble bees, their habitat needs, their behavior, and identifying characteristics in a free, downloadable PDF from the Xerces Society for Invertebrate Conservation: "Conserving Bumble Bees: Guidelines for Creating and Managing Habitat for America's Declining Pollinators."
The PDF mentions that "short-tongued bumble bees will engage in 'nectar robbing' from flowers with a long corolla tube by biting holes at the base of the corolla and drinking the nectar from the outside of the flower." The bee grabs the reward but doesn't contribute to "the plant's pollination needs."
- Author: Kathy Keatley Garvey
The 40 mile-per-hour howling wind didn't seem to bother the syrphid fly, aka hover fly and flower fly.
It clung to a blossom on the tower of jewels, Echium wildpretii, and proceeded to nectar. Its wings sparkled in the morning sun.
This is a pollinator and one that's often mistaken for a honey bee.
A honey bee it isn't. It's a fly.
If you want to read more about them, be sure to check out entomologist Robert Bugg's UC ANR publication, Flower Flies (Syrphidae) and Other Biological Control Agents for Aphids. Click on the link for access to a free 25-page PDF.
- Author: Kathy Keatley Garvey
I never promised you a rose garden
Along with the sunshine
There's gotta be a little rain sometime...
So began Joe South in his hit song, "I Never Promised You a Rose Garden," popularized by country singer Lynn Anderson in 1970.
That was Joe South's rose garden. What UC Davis has is an eight-acre field of roses, and you're invited to celebrate "Roses: the "Eyeconic Weekend" on Saturday and Sunday, May 4-5. It's a free event, with free training/informational sessions. The best part, however, is you can tour the rose field and select and buy a wide variety of container roses for your own garden.
The California Center for Urban Horticulture (CCUH), part of the College of Agricultural and Environmental Sciences at UC Davis, sponsors this annual fundraiser.
The rose sale takes place from 10 a.m. to 4 p.m. both Saturday, May 4 and Sunday, May 5 at Foundation Plant Services, 455 Hopkins Road, west of the central campus.
Rose field tours will be given from 12:30 to 3:30 p.m. on both days. Free mini floribunda roses will be handed out to the first 250 attendees, says CCUH executive director Dave Fujino.
Fujino invites the public to attend the free informational sessions, offered both days at the same site. No registration is required.
The agenda for Saturday, May 4 for the free informational sessions:
- 11 a.m. to noon: New rose varieties
- 1 to 2 p.m., Roses 101 (placement, planting and feeding)
- 2 to 4 p.m., Pruning
- 3 to 4 p.m.: Pest management
The agenda for Sunday, May 5 for the free informational sessions:
- 11 a.m. to noon: New rose varieties
- 1 to 2 p.m.: Roses 101 (placement, planting and feeding)
- 2 to 4 p.m.: Pruning
- 3 to 4 p.m.: Disease Identification (Bring your diseased specimens in a sealed baggie)
These "Rose Days" are what folks look forward to every year. Want to check out the beauty and fragrance? Want to learn how to prune roses? Want to ask a question about a pest or a beneficial insect? This is the place.
A rose catalog is online to aid you in your choices. There you'll see photos of such roses as Yabba Dabba Doo, Big Momma, Tiddly Winks, Wild Blue Yonder, McCartney Rose, Passionate Kisses, and Oh My!
Also available for sale ($10) will be the UC ANR book on "Healthy Roses."
No, this isn't Joe South's rose garden. This is the UC Davis eight-acre field of roses.