- Author: Kathy Keatley Garvey
"How to Attract and Maintain Pollinators in Your Garden."
That's the title of a new publication by the University of California Agriculture and Natural Resources (UC ANR) and what a gem this is. It's not only a gem, but it's free. You can download the publication on this site.
"Nearly all ecosystems on earth depend on pollination of flowering plants for their existence and survival; furthermore, from 70 to 75 percent of the world's flowering plants and over one-third of the world's crop species depend on pollination for reproduction," the authors write. "Take a stroll through your neighborhood or a botanical garden or hike in the hills, and experience the shapes and smells of flowers surrounding you. When most people look at a flower, they notice the shape, smell, composition, or structure of the flower, but few take a moment to consider why the blossom appears and smells as it does."
The publication is the work of a nine-member team: UC Berkeley entomologist Gordon Frankie and lab assistants Marissa Ponder (lead author), Mary Schindler, Sara Leon Guerrero, and Jaime Pawelek; international landscape designer Kate Frey; Rachel Elkins, UC Cooperative Extension pomology advisor, Lake and Mendocino counties; Rollin Coville, photographer, UC Berkeley; and Carolyn Shaffer, lab assistant, UC Cooperative Extension, Lake County. Native pollinator specialist Robbin Thorp, emeritus professor of entomology at UC Davis, helped edit the publication.
The publication asks and answers such questions as:
- What Is Pollination?
- Who Are the Pollinators?`
- Why Should You Care About Pollination?
- How Can You Attract Pollinators to Your Garden?
Other topics include:
- General Design Recommendations for Pollinator Habitat
- Designs to Attract Specific Pollinators
- A List of Pollinator Plants That are Successful in Most California Gardens
- Nesting Resources for Native Bees
Of bees, the authors write: "Bees are the most important biotic agent for the pollination of agricultural crops, horticultural plants, and wildflowers...approximately 4000 species of bees exist in the United States, with 1600 of those residing in California. About 20,000 species have been recorded worldwide."
And, as they succinctly point out, "Native bee species come in a variety of shapes, colors, sizes, and lifestyles that enable them to pollinate a diversity of plant species." One of our favorites is the metallic green sweat bee (Agapostemon texanus).
Last September we enjoyed a tour of Melissa's Garden, Healdsburg, a bee sanctuary owned by Barbara and Jacques Schlumberger and designed by the incredibly talented Kate Frey. “If a honey bee could design a garden, what would it look like?” That's what the Schlumbergers asked Frey back in November of 2007. Although this is a private garden, the Schlumbergers host workshops for schoolchildren, beekeepers and UC Master Gardeners, among other groups. if you ever get the opportunity to tour the garden, you should. A sculpture of Bernard the Beekeeper graces the entrance.
Melissa's Garden is mentioned in the UC ANR Publication, as is the Häagen-Dazs Honey Bee Haven at UC Davis and the UC Berkeley-Oxford Tract Bee Evaluation Garden. Also check out the UC Berkeley Urban Bee Lab website.
- Author: Kathy Keatley Garvey
These freezing temperatures we're experiencing make us yearn for spring.
True, it's still autumn and winter doesn't officially start until Dec. 22, but it's a good time to think of honey bees pollinating the almond blossoms.
California almonds usually bloom around mid-February. We remember, however, that on Jan. 1, 2013 we spotted almonds blooming in the Benicia State Recreation Area. Guess they didn't get the message that it's not spring yet. Bees didn't get the message, either.
Then in early February we cruised over to Matthew Turner Shipyard Park, Benicia, and saw more almond blossoms and a bevy of bees flying.
Let's skip the winter solstice and head right into the vernal equinox!
/span>- Author: Kathy Keatley Garvey
If you're looking for a cause to support, consider the Bohart Museum of Entomology at the University of California, Davis.
The museum crew, led by director Lynn Kimsey, professor of entomology at UC Davis, is enthusiastic, knowledgeable, and dedicated.
They have gained a state, national and international reputation as a key source of information. The museum houses nearly eight million insect specimens, collected from all over the world. In addition to the insect specimens, they maintain a "live" petting zoo that includes Madagascar hissing cockroaches, walking sticks, praying mantids and tarantulas. A year-around gift shop is stocked with t-shirts, sweatshirts, jewelry, books, posters, insect nets, butterfly habitats, and insect-themed candy.
"Every year we have new insect adventures and those head-slapping moments when you think 'insects do that, really?'" Kimsey wrote in a recent letter, adding that "2013 has been a very active year, with our staff and students strengthening our efforts to provide services and educational programs to the public. We are very proud of our dedicated group of volunteers and staff who bring insect-based programs to schools and public functions throughout northern California."
As in the past, long-time supporters Marius and Joanne Wasbauer have given the Bohart Museum another challenge grant of $5000. "They hope that their gift will inspire others to give and they will match your gift, one-for-one, up to $5000," Kimsey wrote. "Funds from the campaign will be deposited in the museum endowment, which provides invaluable operating support to the museum, its collections, programs and staff."
Folks can donate online at http://www.bohartmuseum.com.
Folks can also sign up for a sponsorship of $2500 to be eligible to participate in the Bohart's BioLegay program and will be able to name one of the new species listed on the BioLegacy website, http://biolegacy.ucdavis.edu. This contribution could also be counted toward the Wasbauer challenge grant.
The insect museum is located in Room 1124 of the Academic Surge building on Crocker Lane, near the LaRue Road intersection. It's open to the public Monday through Thursday from 9 a.m. to noon and from 1 to 5 p.m. Special weekend hours are also offered, as are group tours. Contact Tabatha Yang, education and outreach coordinator, at tabyang@ucdavis.edu for more information.
- Author: Kathy Keatley Garvey
Extension apiculturist Eric Mussen of the UC Davis Department of Entomology and Nematology recognized it right away. He's seen or heard of many a wood duck box taken over by honey bees looking for a suitable home.
It's enough to drive the duck enthusiasts quackers.
The question came up again this week, as it periodically does. Someone asked him: "How do you keep wood duck boxes for their intended purpose?" Mussen's observations are worth repeating.
"Years ago I spent some time with a UC Davis student trying to find ways to dissuade honey bees from nesting in wood duck boxes," Mussen recalled. "They had found one box in which the female duck refused to go, so the bees built their combs right down over and around her, killing her. We tried to prevent the bees from being able to grip the top of the box, where they connect their downward-hanging combs. The Teflon tape that we used prevented them from starting at the top and building down. But, they started on the wall at a corner, build some comb up against the Teflon--yes, beeswax sticks to Teflon--then built the combs down. The stickum on the Teflon tape wasn’t good enough to keep the combs stuck to the top, so the whole thing eventually collapsed in a heap."
"We tried Insectape strips (produced by Rainbow Technology) that were supposed to repel bees and wasps from building in electric boxes. We poured the artificial 'swarms' into the boxes to see if they would be driven out by the pesticide strip. It killed them--they didn’t leave. The strips might repel a real swarm under natural conditions, but that is not how we tested it."
"It would be pretty hard to determine where the swarms originate. Right around swarm time is when many beekeepers are looking for suitable locations to build up their colonies and make 'splits.' The bees need a good supply of food for building up, and beekeepers may be moving their bees close to wood duck nesting areas for the spring nectar and pollens."
One option is placing bee boxes near the wood duck boxes to trap honey bee swarms, "especially of the boxes contain some previously used combs."
"There also is a honey bee attractant--pheromone--that can be purchased from beekeeping supply companies to entice the bees into the trap box," Mussen says. "For whatever reason, the trap hives work best at about nine feet off the ground. Some of the beekeeping supply companies also offer what look like really large flower pots with a cover. They are made of some sort of wood pulp--so they don’t really look like bee boxes. By opening a quarter-sized hole in the narrow end, the pots can be put out as trap hives and work pretty well. Despite your best intentions, however, some of the swarms just ignore the trap hives and go somewhere else. So, some will end up in the duck boxes, anyway."
What to do? Visit the wood duck boxes frequently to remove the bees before they accomplish much. "Unfortunately, once they have built some comb in the box," Mussen says, "the odor makes the box much more attractive to the next swarm."
Another issue: some folks troubled by the declining bee population insist on letting honey bees be. "We have become 'blessed' with an increasing number of individuals who believe that honey bees should be left to their own devices, to do whatever happens," he says.
So, to all those folks wanting to retain wood duck boxes for ducks, Mussen says to engage in periodic monitoring to help out their feathered, webbed buddies. That includes removing the bees.
Mussen didn't say this, but I think he meant that you don't have to get up at the "quack of dawn" to do it.
- Author: Kathy Keatley Garvey
It's rather troubling trying to rear subtropical butterflies, Gulf Fritillaries (Agraulis vanillae), in late autumn.
The string of warm sunny days in late November meant plenty of days for Gulf Frits to mate and reproduce. From eggs to larvae to chrysalids to adults--we watched the life cycle unfold on our passion flower vines (Passiflora).
Now it's freezing cold, with morning temperature dipping below 23 degrees.
No Gulf Frits flying outside.
But there is one Gulf Frit flying inside. It emerged from its chrysalis Friday. It is the sole occupant of our butterfly habitat.
"That butterfly could not have picked a worse time to come out," commented naturalist Greg Kareofelas, a Bohart Museum of Entomology volunteer who rears butterflies, including Gulf Frits.
He's so right. Freezing cold and pouring rain are not conducive to releasing butterflies back into the wild--the wild meaning the Passiflora.
On Sunday afternoon as the mercury rose a bit, I contemplated releasing my Gulf Frit. I asked Siri "How COLD is it in Vacaville, California?"
She answered "It is 49 degrees in Vacaville and I don't find that particularly cold."
What? So, now we're getting editorial comment when we ask a question about the weather?
Siri, as you know, is that "intelligent personal assistant and knowledge navigator" (thanks, Wikipedia) that responds to questions you ask on your iphone. Siri is Norwegian for "beautiful woman who leads you to victory."
Beautiful woman or not, Siri is neither leading ME to victory nor my boy butterfly.
Yes, my Gulf Frit is a male, according to butterfly expert Art Shapiro, distinguished professor of evolution and ecology at the University of California, Davis.
Like many other lepidopterists, Shapiro is concerned about the high pressure from the Arctic, resulting in freezing temperatures here. "The low temperatures we have experienced may be enough to extirpate the Gulf Fritillary butterfly regionally," he said. "This subtropical invader has become very popular with local residents (Yolo, Sacrameno and Solano counties, for instance), and if it is indeed wiped out, many will be sad to see it go."
Today Shapiro visited some of the warm pockets on the UC Davis campus but saw no "Leps" (Lepidoptera) of any kind.
There is, however, one restless male Lep in my butterfly habitat. His release date depends on the outside temperatures.
It does not depend on what Siri says.