2016 is starting off warm

March 15, 2016 2:44 PM
Blog Post

I was curious to compare growing degree days (GDDs) over the last couple summers. It seemed like 2014 and 2015 were cool, wet springs with a slow start for insects. But I wanted to check actual temperature history instead of relying on my memory. I used the ISU Agronomy Mesonet to query GDDs at three Iowa locations in 2014 and 2016 (Decorah, Ames and Burlington). What a difference in accumulating temperatures! So far this summer seems about a month ahead of 2014 in GDDs. Like I mentioned in a previous blog post, this warm spring is providing a head start for insect development and could have management implications later this summer. 

GDDs for three Iowa locations in 2014

 

GDDs for three Iowa locations in 2016

Author: 

Erin Hodgson Professor

Dr. Erin Hodgson started working in the Department of Entomology, now the Department of Plant Pathology, Entomology, and Microbiology, at Iowa State University in 2009. She is a professor with extension and research responsibilities in corn and soybeans. She has a general background in integrated...