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Quarantine Effective at Preventing Spread of the Glassy-Winged Sharpshooter

The Glassy-winged sharpshooter (HOMALODISCA VITRIPENNIS) feeds on plants and can spread the disease- causing bacterium Xylella fastidiosa to a variety of commercially sold plants. One lab has focused efforts on refining the existing standardized quarantine treatment protocols for shipping nursery material throughout the state so that all stages of the Glassy-winged sharpshooters are eliminated from nursery stock. Currently, almost all of Southern California commercial nurseries that export product to the north are participating in this program. Since inception in 2010, long-term surveys show that the quarantine treatment program has been 100 percent effective in preventing the commercial spread of this insect. This work provides an example of how research leads to practices that help increase ecological sustainability of landscapes.

NIFA supports this research effort through the Hatch Act Funds.

Contact: Dr. Richard Redak, University of California, Riverside. Photo courtesy of USDA, ARS.

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