Oklahoma State University Insect Control Research at OSU: Update 2006 National Turfgrass Entomology Workshop, February 20, 2006 Tom A. Royer Oklahoma State University

Insect Management Programs at OSU, 2002 Grasshopper control in fescue

Oklahoma State University Insect Management Projects at OSU, 2004 White grub control in bermudagrass turf Heavy flights of Phyllophaga in 2003 Initiated research proposal based upon reports of control problems, and collected some preliminary data on flights.

Oklahoma State University Table 1: Phyllophaga beetle species collected in a black light trap at Stillwater OK, 2004 SpeciesFlight period% of captures P. congrua15 April – 6 May28.4 P. bipartita16 April – 10 May22.0 P. crassissma22 April – 24 May20 P. submucida15 June – 10 July15.2 P. hirtiventris4 May- 1 June7.9

Oklahoma State University Insect Management Projects at OSU, 2004 Have recruited a graduate student to conduct a project looking at the role that Phyllophaga white grubs have on golf courses.

Oklahoma State University I have received questions over the last few years regarding zoysiagrass mites on residential lawns. We attempted to conduct an acaricide screening study at the Plant Pathology farm this past summer Eriophyiod Mites

Oklahoma State University We were unable to find a method to extract and count the mites from the turf. The mites “disappeared” during mid summer, then reappeared in early fall. We are going to set up some studies to further understand what is happening with these mites. Eriophyiod Mites