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Posts Tagged: chemical ecology

Ground-Breaking Research: Sex Pheromone of Asian Citrus Psyllid Discovered

This is the Asian citrus psyllid, a mottled brown insect about 3 to 4 millimeters long, or about the size of an aphid. Widespread throughout Southern California, it is now found in 26 of the state's 58 counties. (CDFA Photo)

The Asian citrus psyllid, the most devastating threat to the worldwide citrus industry, may have met its match. In a ground-breaking discovery encompassing six years of research, an international team of scientists led by UC Davis chemical ecologist...

This is the Asian citrus psyllid, a mottled brown insect about 3 to 4 millimeters long, or about the size of an aphid. Widespread throughout Southern California, it is now found in 26 of the state's 58 counties. (CDFA Photo)
This is the Asian citrus psyllid, a mottled brown insect about 3 to 4 millimeters long, or about the size of an aphid. Widespread throughout Southern California, it is now found in 26 of the state's 58 counties. (CDFA Photo)

This is the Asian citrus psyllid, a mottled brown insect about 3 to 4 millimeters long, or about the size of an aphid. Widespread throughout Southern California, it is now found in 26 of the state's 58 counties. (CDFA Photo)

UC Davis chemical ecologist Walter Leal has just discovered the sex pheromone of the Asian citrus psyillid. He has also discovered the sex pheromones of a number of other insects, including moths (background). (Photo by Kathy Keatley Garvey)
UC Davis chemical ecologist Walter Leal has just discovered the sex pheromone of the Asian citrus psyillid. He has also discovered the sex pheromones of a number of other insects, including moths (background). (Photo by Kathy Keatley Garvey)

UC Davis chemical ecologist Walter Leal has just discovered the sex pheromone of the Asian citrus psyillid. He has also discovered the sex pheromones of a number of other insects, including moths (background). (Photo by Kathy Keatley Garvey)

UC Davis chemical ecologist Walter Leal (left) talks with FUNDECITRUS director Juliano Ayres on Dec. 5 at the 10th Annual Meeting of Chemical Ecology in Sao Paulo.
UC Davis chemical ecologist Walter Leal (left) talks with FUNDECITRUS director Juliano Ayres on Dec. 5 at the 10th Annual Meeting of Chemical Ecology in Sao Paulo.

UC Davis chemical ecologist Walter Leal (left) talks with FUNDECITRUS director Juliano Ayres on Dec. 5 at the 10th Annual Meeting of Chemical Ecology in Sao Paulo.

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

A Touch of Humor

The Walter Leal lab wearing matching t-shirts. See caption at end of the blog. (Photo by Kathy Keatley Garvey)

When chemical ecologist Walter Leal, professor of entomology at the University of California, Davis, was elected to the prestigious Brazilian Academy of Sciences, his lab members donned matching t-shirts--t-shirts with a touch of humor and a dose of...

The Walter Leal lab wearing matching t-shirts. See caption at end of the blog. (Photo by Kathy Keatley Garvey)
The Walter Leal lab wearing matching t-shirts. See caption at end of the blog. (Photo by Kathy Keatley Garvey)

The Walter Leal lab wearing matching t-shirts. See caption at end of the blog. (Photo by Kathy Keatley Garvey)

Walter Leal (back to camera) talking to his lab members. (Photo by Kathy Keatley Garvey)
Walter Leal (back to camera) talking to his lab members. (Photo by Kathy Keatley Garvey)

Walter Leal (back to camera) talking to his lab members. (Photo by Kathy Keatley Garvey)

Posted on Tuesday, December 11, 2012 at 9:45 PM

Equivalent to an Olympic Gold Medal

Chemical ecologist Walter Leal. (Photo by Kathy Keatley Garvey)

Walter Leal isn’t participating in the Olympics, but he medaled just the same. It was not for athletic prowess, but for scholarly achievements—the scientific equivalent of an international gold medal. Leal, a chemical ecologist and a...

Chemical ecologist Walter Leal. (Photo by Kathy Keatley Garvey)
Chemical ecologist Walter Leal. (Photo by Kathy Keatley Garvey)

Chemical ecologist Walter Leal. (Photo by Kathy Keatley Garvey)

Posted on Tuesday, July 31, 2012 at 9:04 PM

Heaven Scent

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Talk about deception. Remember the exciting news article published in November of 2009 in Science Daily about how an orchid species on the Chinese island of Hainan "fools its hornet pollinator by issuing a chemical that honey bees use to send an...

Yellowjacket
Yellowjacket

IF ORCHIDS can trick wasps to pollinate them through a chemical they produce that mimics the scent of their prey, the honey bee, can this type of research be used elsewhere? "Various species of Vespa are problems to beekeepers, because they plunder the hives," said researcher Manfred Ayasse of the University of Ulm in Germany, in discussing his published research (see above). "Besides this, their ravages of fruit crops make hornets a serious pest to man. Our results could be used to develop environmentally responsible traps for pest hornets." This is a photo of a Western yellowjacket (Vespula pensylvanica), a queen, drinking water in May of 2009 at the Harry H. Laidlaw Jr. Honey Bee Research Facility. (Photo by Kathy Keatley Garvey)

Posted on Friday, December 3, 2010 at 5:58 PM

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