Sap-sucking bugs that spread a disease lethal to grapevines have been found in Vacaville, striking fear into the heart of California's premium wine-producing region in nearby Napa Valley. A colony ...

Glassy-winged sharpshooters that feed on infected plants can spread the bacteria. In the past decade, Pierce's disease has caused approximately $14 billion in crop losses and pest control costs in ...

Twenty-five years after appearing in California, the glassy-winged sharpshooter remains public enemy number one on the grape growers’ list of vine-devastating insects. It has yet to show up in ...

Glassy-winged sharpshooters are known to feed on more than 300 varieties of plants, including widely used landscape plants, fruits and vegetables. ...

An infestation of vineyard-threatening glassy-winged sharpshooters was identified in Solano County earlier this month, officials say. The insect is a transmitter of Pierce’s Disease, which ...

“The glassy-winged sharpshooter is a dangerous, invasive, aggressive carrier of Pierce’s disease which is considered one of the most devastating diseases of grapevines in the world,” Vasquez ...

Like a celebrity living on mineral water, the glassy-winged sharpshooter consumes only the sap of woody plants -- including grapevines in California, where it threatens prized vineyards. Now, in ...

July 17, 2025 — The Pierce’s Disease and Glassy-Winged Sharpshooter (PD/GWSS) Board has set the PD/GWSS Winegrape Assessment ...

An adult glassy-winged sharpshooter can drain 200 to 300 times its body weight in water daily — the equivalent of a 150 lb. adult drinking 4,300 gallons of water a day, ...

More than 150 scientists from around the world will gather Dec. 12-14 at UC Davis to compare research findings and plot strategies for the control of Pierce's disease, an insect-transmitted bacterial ...

A destructive insect that could have serious adverse impacts for wineries and agricultural water use was discovered in Marin County last week, county officials said.