Sharpshooters & Pierce's disease in Southern California

Sharpshooters & Pierce's disease

The purpose of this site is to provide information on the biology and management of sharpshooters and Pierce's disease, with a focus on Southern California vineyards and surrounding areas.

The blog will be used to post regular updates on the results of the Temecula glassy-winged sharpshooter areawide monitoring program and to occasionally share other information relevant to sharpshooters, Xylella fastidiosa, or Pierce's disease.

For more information, contact Matt Daugherty (matt.daugherty@ucr.edu; 951-827-2246)

Temecula GWSS monitoring

GWSS activity remained high, with a total of 108 GWSS caught among the 115 traps. It is somewhat reassuring that we did not see an increase from the last round, as it suggests GWSS populations may soon be on the downturn after a much delayed start to the year. Whether that holds true should be...

August 17, 2023

Updates on GWSS monitoring in Temecula

As noted, the Temecula GWSS Areawide Monitoring Program formally wound down in June. Fortunately, the winegrape industry has initiated an analogous monitoring program with funding provided by the Temecula Valley Winegrowers Association. Ultimately, the hope is to establish an online data dashboard with real-time monitoring information and notes to keep growers apprised of relevant issues...

August 03, 2023

GWSS newsletter 6-21-2023

June 21, 2023

GWSS newsletter 6-7-2023

June 07, 2023

GWSS newsletter 5-22-2023

May 22, 2023

Temecula GWSS Areawide Program is Winding Down

Please note that the Temecula GWSS areawide monitoring will be wrapping up after June 2023. This program has been administered by the CDFA with funding from the USDA for more than 20 years, the goal of which was to support broad-scale monitoring of GWSS populations in the region to guide vineyard pest management decisions. In...

May 17, 2023