FROM THE NEWS-LEDGER — JUNE 5, 2013 —
By Mary K. Hanson
Most likely you recognize the European honey bees when you see them, but did you know that California also boasts over 1600 species of native bees? There are actually over 300 species just in Yolo County alone, and like honey bees, these guys lend a significant hand in pollinating local crops.
Recognizing many of the native bee species may be a little difficult for those of us without an entomology background, but there are some real standouts like the Blue Orchard Bees, the Metallic Sweat Bees, and the Valley Carpenter Bees which at about 1-inch in length are the largest bees in California. The female Carpenter Bees are shiny black, but the stingless males are fat, fuzzy and golden blond with large green compound eyes. They are often referred to as “Teddy Bear Bees”.
At the Häagen-Dazs Honey Bee Haven in Davis, CA, I was lucky enough to speak with Dr. Robbin Thorp about bee conservation and how we can all help to preserve the species that are native to our region… and I also got up close to some of the Teddy Bear Bees. Some bee species are dwindling in numbers due to loss of habitat, disease and malnutrition. In northern California, for example, four species of bumblebees are already on the endangered list and one, the Franklin’s Bumblebee, may now be extinct. The good news is that it’s not too late to help our native bees. You can even create native-bee-friendly zones right in your own backyard.
Unlike honey bees that live together in massive colonies, native bees are generally solitary and unobtrusive guests. They live in small burrows in the ground or in narrow tunnels in wood. In your garden, you can encourage native bees to nest by providing them with patches of sunny, untilled, well-drained soil to burrow into. Or you can set up “bee condos” for them by drilling tunnels into chunks of wood, and setting those up in your garden.
After mating, the female bee will enter her underground hideout or the bee condo you’ve created, and will lay her eggs on little balls of doughy pollen. She’ll then seal up the brood chamber with mud, pieces of leaves or resin so the babies are safe and well fed while they’re developing.
Dr. Thorp reminds us that native bees are “vegans” who need sugar from nectar and protein from pollen to survive, so planting a garden with that in mind will help to sustain the bees in your area. Almond trees, apple trees, acacia, germander and salvia plants produce a lot of flowers the bees really go for. They also like thyme, rosemary and most forms of daisy-like flowers. If you’re planting rose bushes, keep in mind that there isn’t enough pollen in the fancy multi-petal hybrid roses to feed the bees; they need roses with the simple five-petal blossoms on them that have lots of anthers. Plant for blooms throughout the year and you’ll always have a supply of food for the bees. All of this will help ensure pollination of your flowers and fruit trees, and will turn your backyard into a friendly place for the bees to be!
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