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

Posts Tagged: Culex quinquefasciatus

Davis Teen: How Those Pesky Mosquitoes Led to a Scientific Publication

Researcher and lead author Helena Leal, 17, a scholar at Davis High School, injects a sample of odorants trapped in a solid phase micro-extraction syringe intothe gas chromatography–mass spectrometry (GC-MS) in the Walter Leal lab at UC Davis. In back  are chemical ecologist Walter Leal (right) and UC Davis student researcher Kaiming Tan. (Photo by Kathy Keatley Garvey)

Listen to ABC Channel 10 News, broadcast Dec. 22Seventeen-year-old Helena Leal doesn't like mosquitoes, but they like her. “I always get bitten by mosquitoes more often than my family and friends,” says the Davis High School senior. “I...

Researcher and lead author Helena Leal, 17, a scholar at Davis High School, injects a sample of odorants trapped in a solid phase micro-extraction syringe intothe gas chromatography–mass spectrometry (GC-MS) in the Walter Leal lab at UC Davis. In back  are chemical ecologist Walter Leal (right) and UC Davis student researcher Kaiming Tan. (Photo by Kathy Keatley Garvey)
Researcher and lead author Helena Leal, 17, a scholar at Davis High School, injects a sample of odorants trapped in a solid phase micro-extraction syringe intothe gas chromatography–mass spectrometry (GC-MS) in the Walter Leal lab at UC Davis. In back are chemical ecologist Walter Leal (right) and UC Davis student researcher Kaiming Tan. (Photo by Kathy Keatley Garvey)

Researcher and lead author Helena Leal, 17, a scholar at Davis High School, injects a sample of odorants trapped in a solid phase micro-extraction syringe intothe gas chromatography–mass spectrometry (GC-MS) in the Walter Leal lab at UC Davis. In back are chemical ecologist Walter Leal (right) and UC Davis student researcher Kaiming Tan. (Photo by Kathy Keatley Garvey)

Working on the mosquito cage assay are (from left) researchers Kaiming Tan, a UC Davis student in the Walter Leal lab;  lead author Helena Leal of Davis High School, and UC Davis chemical ecologist Walter Leal. (Photo by Kathy Keatley Garvey)
Working on the mosquito cage assay are (from left) researchers Kaiming Tan, a UC Davis student in the Walter Leal lab; lead author Helena Leal of Davis High School, and UC Davis chemical ecologist Walter Leal. (Photo by Kathy Keatley Garvey)

Working on the mosquito cage assay are (from left) researchers Kaiming Tan, a UC Davis student in the Walter Leal lab; lead author Helena Leal of Davis High School, and UC Davis chemical ecologist Walter Leal. (Photo by Kathy Keatley Garvey)

Looking over mosquito specimens are (from left)  UC Davis chemical ecologist Walter Leal and two members of the research team: daughter Helena Leal, lead author; and UC Davis student Kaiming Tan. Not pictured is UC Davis student researcher Justin K. Hwang. (Photo by Kathy Keatley Garvey)
Looking over mosquito specimens are (from left) UC Davis chemical ecologist Walter Leal and two members of the research team: daughter Helena Leal, lead author; and UC Davis student Kaiming Tan. Not pictured is UC Davis student researcher Justin K. Hwang. (Photo by Kathy Keatley Garvey)

Looking over mosquito specimens are (from left) UC Davis chemical ecologist Walter Leal and two members of the research team: daughter Helena Leal, lead author; and UC Davis student Kaiming Tan. Not pictured is UC Davis student researcher Justin K. Hwang. (Photo by Kathy Keatley Garvey)

Davis High School scholar Helena Leal addresses the crowd at the Mexican-American Yolo County Concilio Scholarship Dinner. At left is keynote speaker Carlos Saucedo of ABC Channel 10.(Photo by Kathy Keatley Garvey)
Davis High School scholar Helena Leal addresses the crowd at the Mexican-American Yolo County Concilio Scholarship Dinner. At left is keynote speaker Carlos Saucedo of ABC Channel 10.(Photo by Kathy Keatley Garvey)

Davis High School scholar Helena Leal addresses the crowd at the Mexican-American Yolo County Concilio Scholarship Dinner. At left is keynote speaker Carlos Saucedo of ABC Channel 10.(Photo by Kathy Keatley Garvey)

UC Davis Researcher: What Repellents and Doses Are Best to Prevent Zika Virus

Working on zika-virus research are UC Davis chemical ecologist Walter Leal (foreground) and colleagues and co-authors Rosangela Barbosa (center) and graduate student Gabriel Faierstein of FIOCRUZ-PE, Recife, Brazil.

If you're traveling to—or living in--a Zika virus-infested area, it's far better to use DEET rather than Picaridin and to use higher, rather than lower, doses of DEET because lower doses do not work well with older mosquitoes, newly published...

Working on zika-virus research are UC Davis chemical ecologist Walter Leal (foreground) and colleagues and co-authors Rosangela Barbosa (center) and graduate student Gabriel Faierstein of FIOCRUZ-PE, Recife, Brazil.
Working on zika-virus research are UC Davis chemical ecologist Walter Leal (foreground) and colleagues and co-authors Rosangela Barbosa (center) and graduate student Gabriel Faierstein of FIOCRUZ-PE, Recife, Brazil.

Working on zika-virus research are UC Davis chemical ecologist Walter Leal (foreground) and colleagues and co-authors Rosangela Barbosa (center) and graduate student Gabriel Faierstein of FIOCRUZ-PE, Recife, Brazil.

The southern house mosquito, Culex quinquefasciatus, can also transmit the Zika virus, but the primary mosquito is the yellow fever mosquito, Aedes aegypti. (Photo by Kathy Keatley Garvey)
The southern house mosquito, Culex quinquefasciatus, can also transmit the Zika virus, but the primary mosquito is the yellow fever mosquito, Aedes aegypti. (Photo by Kathy Keatley Garvey)

The southern house mosquito, Culex quinquefasciatus, can also transmit the Zika virus, but the primary mosquito is the yellow fever mosquito, Aedes aegypti. (Photo by Kathy Keatley Garvey)

Posted on Thursday, February 16, 2017 at 2:00 AM

Breaking News: Zika Virus Found in Wild-Caught Culex

Culex quinquefasciatus, the southern house mosquito,is known for transmitting the West Nile virus, but now the Zika virus has been detected in wild-caught C. quinquefasciatus in Recife, Brazil, the epicenter of the Zika epidemic. (Photo by Kathy Keatley Garvey)

The news is out.  It's what they've been searching for. In a groundbreaking discovery, a scientific team of Brazilians and Brazilian-born chemical ecologist Walter Leal of the University of California, Davis, has announced that the Zika virus has...

Culex quinquefasciatus, the southern house mosquito,is known for transmitting the West Nile virus, but now the Zika virus has been detected in wild-caught C. quinquefasciatus in Recife, Brazil, the epicenter of the Zika epidemic. (Photo by Kathy Keatley Garvey)
Culex quinquefasciatus, the southern house mosquito,is known for transmitting the West Nile virus, but now the Zika virus has been detected in wild-caught C. quinquefasciatus in Recife, Brazil, the epicenter of the Zika epidemic. (Photo by Kathy Keatley Garvey)

Culex quinquefasciatus, the southern house mosquito,is known for transmitting the West Nile virus, but now the Zika virus has been detected in wild-caught C. quinquefasciatus in Recife, Brazil, the epicenter of the Zika epidemic. (Photo by Kathy Keatley Garvey)

UC Davis chemical ecologist and mosquito researcher Walter Leal (front), confers with Constancia Ayres (far right, in black) and Rosângela Barbosa (center), faculty members in the Department of Entomology, Fiocruz-Recife.  Both are Leal colloborators.
UC Davis chemical ecologist and mosquito researcher Walter Leal (front), confers with Constancia Ayres (far right, in black) and Rosângela Barbosa (center), faculty members in the Department of Entomology, Fiocruz-Recife. Both are Leal colloborators.

UC Davis chemical ecologist and mosquito researcher Walter Leal (front), confers with Constancia Ayres (far right, in black) and Rosângela Barbosa (center), faculty members in the Department of Entomology, Fiocruz-Recife. Both are Leal colloborators.

Posted on Friday, July 22, 2016 at 2:26 PM

What You Should Know About the Zika Virus

Zika Flyer

The (Zika) virus is here, and so is the mosquito. The question is whether there will be enough of both to set off an epidemic. That's what UC San Francisco medical student Joshua Lang wrote in his piece, With Summer Coming, Can the Zika Virus Be...

Zika Flyer
Zika Flyer

Posted on Monday, April 18, 2016 at 6:56 PM

Unraveling the Mystery of DEET

UC Davis scientists in the Walter Leal lab have discovered the odorant receptor in the Culex mosquito that repels DEET. From left are project scientist Pingxi Xu;  postdoctoral scholar Young-Moo Choo; AgChem graduate student Alyssa De La Rosa; and Professor Leal. (Photo credit: Academic Technology Services/Mediaworks)

You spray DEET on your arms, and those pesky mosquitoes leave you alone. It works. However,  not everyone wants to use DEET, a synthetic insect repellent. There's that smell, for one thing. "Properties that people do not like in addition to the...

UC Davis scientists in the Walter Leal lab have discovered the odorant receptor in the Culex mosquito that repels DEET. From left are project scientist Pingxi Xu;  postdoctoral scholar Young-Moo Choo; AgChem graduate student Alyssa De La Rosa; and Professor Leal. (Photo credit: Academic Technology Services/Mediaworks)
UC Davis scientists in the Walter Leal lab have discovered the odorant receptor in the Culex mosquito that repels DEET. From left are project scientist Pingxi Xu; postdoctoral scholar Young-Moo Choo; AgChem graduate student Alyssa De La Rosa; and Professor Leal. (Photo credit: Academic Technology Services/Mediaworks)

UC Davis scientists in the Walter Leal lab have discovered the odorant receptor in the Culex mosquito that repels DEET. From left are project scientist Pingxi Xu; postdoctoral scholar Young-Moo Choo; AgChem graduate student Alyssa De La Rosa; and Professor Leal. (Photo credit: Academic Technology Services/Mediaworks)

Posted on Monday, October 27, 2014 at 5:05 PM

Next 5 stories | Last story

 
E-mail
 
Webmaster Email: mdhachman@ucdavis.edu