Plant and Insect Diagnostic Clinic Update - July 1, 2009

The following are highlights and updates about samples and questions received in the Clinic during the past two weeks:


  • Earwigs have been common in samples, email messages and phone calls. These scavengers feed on tender plants and are a frequent household accidental invader. They are easy to recognize by the pincers-like structures on the tail end. See photo below and our website for more information.
  • Emerald ash borer questions continue, but so far all samples have been an EAB look-alike such as the tiger beetle below. That's good news: No EAB samples have been submitted.
  • We continued to receive samples of oak leaf blister.
  • Also some samples of diplodia tip blight on Austrian and red pine

Earwig.  Note the large pincers on the tail end.  Photo by Laura Jesse.Earwig. Note the large pincers on the tail end. Photo by Laura Jesse. Sixspotted tiger beetle.  Photo by Mark LichtSixspotted tiger beetle. Photo by Mark Licht


Links to this article are strongly encouraged, and this article may be republished without further permission if published as written and if credit is given to the author, Horticulture and Home Pest News, and Iowa State University Extension and Outreach. If this article is to be used in any other manner, permission from the author is required. This article was originally published on July 1, 2009. The information contained within may not be the most current and accurate depending on when it is accessed.