DES MOINES – Emerald Ash Borer has been positively identified in a residential tree in Newton in Jasper County from a larva sample collected on March 20, 2014. EAB kills all ash tree species and is considered to be one of the most destructive tree pests ever seen in North America.
DES MOINES – The emerald ash borer (EAB), a destructive and invasive insect of ash trees has been discovered in central rural Montgomery County. Iowa’s growing number of counties with confirmed detections has now reached twenty-seven. Native to Asia, EAB has spread to 25 states since first being identified in Michigan back in 2002. This exotic pest is responsible for the death of tens of millions of ash trees. Click for current map of infestations.
A recent inquiry from an Extension and Outreach colleague about timing of preventive treatments for the emerald ash borer (EAB) was insightful. This note is written to help direct types of treatments to the seasons they are most appropriate.
Insecticide product labels state that there are two windows for preventive treatments when applied to the soil or externally to the trunk of the tree: Spring and Fall. Iowa State University Extension and Outreach publication PM2084 currently includes both windows, in keeping with the product labels. Trunk injections can be done in a wider window (May through September 1) when the tree has a full crown and there is good soil moisture.
DES MOINES – Emerald Ash Borer (EAB) has been positively identified in the city of Clinton, making this the twentieth 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.
AMES, Iowa — The Emerald Ash Borer is an insect that, in a matter of time, will destroy all ash trees. Because the bug has begun making its way across Iowa, an Iowa State University Extension and Outreach entomologist, in collaboration with an Iowa Department of Agriculture and Land Stewardship entomologist, has written a new publication to help Iowans identify signs of the pest under the bark.
DES MOINES – Two adult Emerald Ash Borer (EAB) beetles have been collected from a trap in a residential tree in Boone and have been positively identified as EAB by a federal identifier. The trap was placed in the tree this summer after suspect galleries were found in an ash tree branch that fell during a storm.
A statewide quarantine restricting the movement of hardwood firewood, ash logs, wood chips and ash tree nursery stock out of Iowa into non-quarantined areas of other states was issued on Feb. 4, 2014 and remains in place.
DES MOINES – An adult Emerald Ash Borer submitted by an Iowa City resident to the Iowa EAB Team has been positively identified as the destructive beetle by a federal identifier. A follow-up examination of ash trees growing in the vicinity of where the beetle was collected has failed to confirm an infestation.