Development of trapping systems to trap glassy-winged sharpshooter (Homalodisca coagulata) adults and nymphs in grape

The glassy-winged sharpshooter (GWSS) Homalodisca coagulata is native to the southeastern United States (Young 1958) where it is a known vector of various strains of the bacterium Xylella fastidiosa. Since its introduction into California, it has become established in large numbers in certain areas. Pierce’s disease (PD) has been a problem in California for more than 100 years, but the GWSS is a more efficient vector of X. fastidiosa because it is a stronger flier than native Californi