Cooperative Extension San Joaquin County
University of California
Cooperative Extension San Joaquin County

Posts Tagged: UC Davis

Ever Seen a Gulf Fritillary Laying an Egg?

Gulf Fritillary Agraulis vanillae), an orangish-reddish butterfly of the family Nymphalidae, lays its eggs on its host plant, Passiflora. They often lay their eggs on the tendrils. (Photo by Kathy Keatley Garvey)

Ever seen a Gulf Fritillary butterfly laying an egg? The Gulf Frit (Agraulis vanillae), an orangish-reddish butterfly of the family Nymphalidae, lays its eggs on its host plant,  Passiflora. When you see its silver-spangled underwings, you...

Posted on Monday, August 6, 2018 at 5:00 PM
Focus Area Tags: Environment Natural Resources

Remembering the Legendary Entomologist and Toxicologist Dr. John Casida

Distinguished professor John Casida (center) with his former graduate students Sarjeet Gill (left), a distinguished professor at UC Riverside, and Bruce Hammock, a distinguished professor at UC Davis. This image was taken in 2016 at UC Berkeley.

Graduate students and postdoctoral students that the legendary John Casida trained remember him with great fondness, respect and appreciation. He made a difference: a huge difference. Dr. Casida, 88, a world-renowned entomologist and toxicologist at UC...

Posted on Thursday, July 26, 2018 at 5:37 PM

Dragonflies En Masse

A wind-swept meadowhawk, Sympetrum corruptum, perches on a fence post after feasting on prey on July 1, 2018 in Vacaville, Calif. This was taken just after sunrise with a 200mm macro lens. (Photo by Kathy Keatley Garvey)

So there they were, literally dozens of dragonflies flying around two separate Vacaville (Calif.) yards, feasting on swirling clouds of prey (gnatlike insects) and then touching down on blades of grass or fence posts. They proved as elusive as a...

Posted on Wednesday, July 11, 2018 at 5:13 PM
Focus Area Tags: Environment Yard & Garden

The Work of William Hazeltine II Lives On

Brothers Craig and Lee Hazeltine recently honored Bill Hazeltine Research Award recipients Olivia Winokur and Maribel

The late medical entomologist William Emery Hazeltine II (1926-1994) worked tirelessly in mosquito research and public health. Thanks to the generosity of his family, his work is continuing through memorial research grants to outstanding graduate...

Why Beauty Is in the Eye of the Bee-Holder

A crabronid wasp or beewolf foraging on a pineapple sea lily (Eryngium horridum) at the Morningsun Herb Farm, Vacaville, Calif. (Photo by Kathy Keatley Garvey)

Irish novelist Margaret Wolfe Hungerford was right. In Molly Bawn, published in 1878, Hungerford wrote "Beauty is in the eye of the beholder," meaning that our perception of beauty is subjective. Beauty is also in the eye of the bee-holder, that is, a...

Posted on Monday, July 9, 2018 at 4:21 PM

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