Emerald ash borer has been positively identified from a tree in central rural Louisa County. This exotic pest kills several species of ash and is considered one of the most destructive tree pests ever seen in North America. Iowa now has 32 counties with confirmed infestations.
Beneficial insects that will help battle the emerald ash borer, a highly destructive pest of ash trees, will be released in Jefferson County. Over the next few weeks several thousand stingless, parasitic wasps will be released at Whitham Woods near Fairfield, Iowa. This is the first release of the natural enemies of EAB in Iowa.
The emerald ash borer (EAB), which has already been confirmed in nearly one-third of Iowa’s counties, has been discovered in Decorah.