Federal and state agriculture officials are setting 568 traps across Kansas to detect and prevent the spread of the emerald ash borer.
The beetle has killed millions of ash trees since it was first discovered in North America in 2002.
In Kansas, it was found in Wyandotte County in 2012 and Johnson County in 2013.
Kansas is participating in a U.S. Department of Agriculture survey to monitor known infestations and detect unknown beetle populations.
The state plans to set up 80 traps in Barton, Bourbon, Douglas, Ellsworth, Leavenworth, Marion and Osage.