Dr.  Valerie Williamson, professor in the Department of Nematology at the University of California, Davis, will speak at Fresno State’s Biology Colloquium at 3 p.m.  Friday, Aug. 29, in Science Building II, Room 109. She will discuss “Novel reproductive modes and pathoevolution in root-knot nematodes” at the free, public lecture presented by the Department of Biology. INFO and disability-related accommodation or wheelchair access one week in advance: Nancy Wright at 559.278.2001 (nawright@csufresno.edu) or www.fresnostate.edu/csm/biology/.