POPULATION DYNAMICS AND INTERACTIONS BETWEEN GLASSY-WINGED SHARPSHOOTER AND ITS HOST PLANTS IN RESPONSE TO CALIFORNIA PHENOLOGY

• Author(s): Andersen, Peter; Mizell, Russell; Phillip, Phil; Bender, Gary; Brodbeck, Brent; Daane, Kent; Faber, Ben; Johnson, Marshall; Mauk, Peggy; Oevering, Pascal;
• Abstract: We determined the relative phenology of host plant use by glassy-winged sharpshooter (GWSS), other leafhopper vectors, natural enemies, and Xylella fastidiosa (Xf) in ornamental, agricultural and California native host plants in key California locations in climatically different regions: Coastal (Piru, Ventura County), Inland (Redlands, San Bernardino County), and South (Pauma Valley, San Diego County). In this study, the only host plant used frequently in all life stages was cottonwood. On grape and crape myrtle, nymphs and eggs were frequently recorded, while photinia, cherry and sycamore frequently hosted egg masses but not the other life stages. This research will be used to develop a GWSS performance database on the host plant species that are identified as truly critical to GWSS survival.
• Publication Date: Dec 2005
• Journal: 2005 Pierce's Disease Research Symposium