Oklahoma State University

Insect Control Research at OSU: Update

2006 National Turfgrass Entomology Workshop, February 20, 2006

Tom A. Royer

Oklahoma State University

Oklahoma State University

Insect Management Programsat OSU, 2002

Grasshopper control in

fescue

Oklahoma State University

Insect Management Projectsat 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

Species Flight period % of captures

P. congrua 15 April – 6 May 28.4

P. bipartita 16 April – 10 May 22.0

P. crassissma 22 April – 24 May 20

P. submucida 15 June – 10 July 15.2

P. hirtiventris 4 May- 1 June 7.9

Oklahoma State University

Insect Management Projectsat 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