SEASONAL POPULATION DYNAMICS OF GLASSY-WINGED SHARPSHOOTER EGG PARASITOIDS: VARIABILITY ACROSS SITES AND HOST PLANTS

• Author(s): Morse, Joseph; Lytle, Jonathan; Morgan, David;
• Abstract: The California Department of Food & Agriculture (CDFA) has a number of sites in southern California where they are releasing egg parasitoids of Glassy-winged Sharpshooter. To date, species released include Gonatocerus ashmeadi, G. fasciatus, G. morrilli, and G. triguttatus. Two South American Gonatocerus species are scheduled for release in 2005 (pending host specificity studies and release permits) and a strain of Anagrus epos from Minnesota may also be included in future releases (also pending such work). CDFA monitors for parasitoid establishment and population dynamics at release sites. This project is intended to complement and expand the scope of this monitoring with an eye towards improving our understanding of the benefit of releasing alternative parasitoid species and how well they are surviving, dispersing, and impacting GWSS populations.
• Publication Date: Dec 2004
• Journal: 2004 Pierce's Disease Research Symposium