Dustin Vande Hoef
Iowa Department of Agriculture and Land Stewardship

Articles by this author:

Emerald Ash Borer has been positively identified in the city of Clinton, making this the 20th county in Iowa where this wood boring pest of ash trees has been found. EAB kills all ash tree species and is considered to be one of the most destructive tree pests ever seen in North America.

Emerald Ash Borer has been positively identified in the Iowa community of Hedrick in Keokuk County. A statewide quarantine remains in place and restricts the movement of hardwood firewood, ash logs, wood chips and ash tree nursery stock out of Iowa into non-quarantined areas of other states.

Emerald Ash Borer has been positively identified in Appanoose, Lucas, Mahaska, Marion and Monroe counties in southern Iowa.

Iowa now has 13 counties infested with Emerald Ash Borer after beetles were found in Story City.

The Corn Nitrogen Rate Calculator is available to help farmers find the maximum return to nitrogen fertilizer applications and the most profitable application rate for their farm. Having adequate nitrogen available is critical for corn production, but given the high prices for fertilizer it is important farmers determine the right amount that is needed on their crops.

Farmers are encouraged to wait until soil temperatures remain below 50 degrees Fahrenheit before applying anhydrous ammonia (NH3) fertilizer this fall.