Agriculture

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A honey bee on sage. Fossil evidence indicates that the very first insects inhabited this earth 400 million years ago. Honey bees existed at least by 7000 B.C., per a primitive drawing in a cave wall in eastern Spain. (Photo by Kathy Keatley Garvey)

Holy Moly!

September 23, 2008
By Kathy Keatley Garvey
Quick! How long have insects inhabited this earth? If you're taking a biology or an entomology course, you'll be asked that question on an exam. If you're attending the Entomological Society of America conference Nov. 16-20 in Reno, you probably already know that. A good answer: 400 million years.
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A drone (front) starts his takeoff to find a virgin queen. At left is a worker bee, his sister. Drones don't survive the winter; the girls kick the boys out of the hive.(Photo by Kathy Keatley Garvey)

Oh, Brother, Where Art Thou?

September 22, 2008
By Kathy Keatley Garvey
It's tough being a drone honey bee this time of year. The drones, or male bees, don't survive the winter. Bee breeder-geneticist Susan Cobey of the Harry H. Laidlaw Jr. Honey Bee Research Facility at UC Davis admits to having a soft spot for drones.
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A honey bee heads for the colorful button-willows (Cephalanthus occidentalis).(Photo by Kathy Keatley Garvey)

Cute as a Button (Willow)

September 12, 2008
By Kathy Keatley Garvey
A bee on a ball. When it flowers, the button-willow (Cephalanthus occidentalis), also known as willow, buttonbush, honey ball, and button ball (oh, that's so close to butter ball!) attracts honey bees and butterflies like you wouldn't believe.
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The queen bee (the largest bee, center) is surrounded by her court, the worker bees, who take care of her every need. They feed her, groom her and protect her "and then they have the additional tasks of rearing and feeding her young," said bee breeder-geneticist Susan Cobey of the UC Davis Department of Entomology. (Photo courtesy of Susan Cobey, UC Davis Department of Entomology)

The Queen Bee

September 11, 2008
By Kathy Keatley Garvey
If you were a queen bee, you'd be laying about 1500 to 2000 eggs today. It's your busy season. "She's an egg-laying machine," said bee breeder-geneticist Susan Cobey of the Harry H. Laidlaw Jr. Honey Bee Research Facility at UC Davis. "And she's the mother of all the bees in the hive.
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This is a bee nesting block built to attract native pollinators. (Photo by Kathy Keatley Garvey)

Build It And They Will Come

September 9, 2008
By Kathy Keatley Garvey
Build it and they will come. Baseball's Field of Dreams? No, a bee nesting block. Think "bee condo." It's an artificial nesting site made of wood and drilled with different-sized holes and depths to accommodate the diversity of native pollinators. Often the bee block is nailed to a fence post.
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A female carpenter bee (Xylocopa tabaniformis orpifex) pierces the corolla of salvia to rob the nectar. (Identified by Robbin Thorp, UC Davis emeritus professor of entomology.) (Photo by Kathy Keatley Garvey)

I've Been Robbed!

September 5, 2008
By Kathy Keatley Garvey
Robber at work. No, this isn't a bank heist or a gas station hold-up or a home invasion. A carpenter bee is slitting the sides of salvia (sage) to steal the nectar. Floral larceny! Book 'em, Danno! Carpenter bees are nectar robbers.
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A female varroa mite on a drone (male bee). The mite is the reddish-brown parasite on the bee's thorax. (Photo by Kathy Keatley Garvey)

Mighty Mite

September 4, 2008
By Kathy Keatley Garvey
It's a mighty mite and it's causing beekeepers fits. The varroa mite (see photo below) is an external parasite that attacks honey bees. It sucks blood from the adults (apparently preferring drones, the male bees) and from the brood (immature bees).
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Light brown apple moth, female. (Photo courtesy of David Williams, principal scientist, Perennial Horticulture, Department of Primary Industries, Victoria, Australia.)

Ain't No Moths on Me

September 1, 2008
By Kathy Keatley Garvey
Bam! LBAM is back in the news. The California Department of Food and Agriculture announced Aug. 29 that it has established a 19-square-mile quarantine straddling portions of two counties after the light brown apple moth (LBAM) was found July 23 in Napa County and Aug. 10 in Sonoma County.
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Karen Flores and Dennis Price: The bees have their attention and their respect. (Photo by Kathy Keatley Garvey)

Honey, Meet Me at the Fair

August 25, 2008
By Kathy Keatley Garvey
As a child, Dennis Price loved to watch the honey bees. I could sit and watch them all day, he said. He still does. Love the honey bees, that is. And he never tires of watching them. If you attended the California State Fair on Sunday, Aug. 17 or Saturday, Aug.
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Hillary Thomas is studying the saltcedar beetle (Diorhabda elongata): a good bug on a bad weed. (Photo by Kathy Keatley Garvey)

Good Bug, Bad Weed

August 20, 2008
By Kathy Keatley Garvey
Hillary Thomas' biological control research on a leaf-eating beetle that targets saltcedar has scored a bullseye. Thomas, a doctoral candidate in entomology at UC Davis, has received a $15,000 Robert and Peggy van den Bosch Memorial Scholarship to support her research.
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