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Posts Tagged: Vernard Lewis

Of Termites, Bed Bugs and Cockroaches

UC ANR urban entomologist Vernard Lewis stands by his Villa Termiti, built just for termite research. (UC ANR Photo)

We're all going to miss him. The termites, bed bugs and cockroaches--not so much. "Him" is Vernard Lewis, who terminated termites, bugged bed bugs,...

UC ANR urban entomologist Vernard Lewis stands by his Villa Termiti, built just for termite research. (UC ANR Photo)
UC ANR urban entomologist Vernard Lewis stands by his Villa Termiti, built just for termite research. (UC ANR Photo)

UC ANR urban entomologist Vernard Lewis stands by his Villa Termiti, built just for termite research. (UC ANR Photo)

Madagascar hissing cockroaches at the Bohart Museum of Entomology, UC Davis. (Photo by Kathy Keatley Garvey)
Madagascar hissing cockroaches at the Bohart Museum of Entomology, UC Davis. (Photo by Kathy Keatley Garvey)

Madagascar hissing cockroaches at the Bohart Museum of Entomology, UC Davis. (Photo by Kathy Keatley Garvey)

Posted on Thursday, July 13, 2017 at 2:43 PM

Invasive paper wasp responsible for increasing yellow jacket complaints

European paper wasp (Photo: Wikimedia Commons)
The European paper wasp is spreading quickly across Northern California and boosting yellow jacket complaints, reported Peter Fimrite in the San Francisco Chronicle.

"The European paper wasp, which is about the same size (as the yellow jacket) but more slender, has built up to enormous numbers in some communities," said Lynn Kimsey, professor in the Department of Entomology at UC Davis. "They have been making their way out of the Sacramento area for the past 20 years."

Kimsey said the wasps have moved outward from Sacramento along river beds and water ways into the Sierra Nevada and along the delta toward San Francisco. In August, 345 wasp nests were removed in South Lake Tahoe.

European paper wasps dine on caterpillars, aphids and honeybees, but switch to mostly carbohydrates in the late summer for energy, said Andrew Sutherland, UC Cooperative Extension advisor in the Bay Area.

Vernard Lewis, UCCE specialist in the Department of Environmental Science, Policy and Management at UC Berkeley, also contributed to the story.

"Where I normally eat my lunch is one of the biggest yellow jacket nests I've seen in years," Lewis said. "It's not just here. I'm getting reports from the Berkeley campus and from Richmond, Antioch and Rodeo. Something is up. It's not just yellow jackets. It's other pests, too, like cockroaches. It's the most I've seen in at least 10 or 15 years."

Fimrite added a link in his article to the UC Statewide IPM Program Pest Note on Yellowjackets and other social wasps.

Yellow jackets, like the one above, are often confused with European paper wasps. (Photo: Wikimedia Commons)
Yellow jackets, like the one above, are often confused with European paper wasps. (Photo: Wikimedia Commons)

Posted on Tuesday, September 10, 2013 at 2:26 PM
 
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