Emerald ash borer, a tree-killing pest of ash trees, has been confirmed in Iowa City. The discovery was made on the University of Iowa campus.
A destructive insect of ash trees has been confirmed in southern Cedar Rapids. The emerald ash borer was discovered at an Iowa interstate rest area along I-380 approximately one-half mile north of the Johnson County line.
Farmers are reminded to wait until soil temperatures remain below 50 degrees Fahrenheit before applying anhydrous ammonia (NH3) fertilizer this fall. Harvest is progressing rapidly in many parts of the state and officials with the Iowa Department of Agriculture and Land Stewardship and Iowa State University Extension and Outreach said that waiting can help reduce nitrogen loss and better protects the environment.