• adult mosquito

    Mosquito known to spread Zika virus (Jessica Louque, Smithers Viscient, Bugwood.org) Click on photo for NY Times article.

  • Brown marmorated stink bug adult

    Brown marmorated stink bug adult ( David R. Lance, USDA APHIS PPQ, Bugwood.org)

  • Downy Mildew

    Downy Mildew on Rudbeckia

  • Asian tiger mosquito

    Asian tiger mosquito known to spread Zika virus (Susan Ellis, Bugwood.org) Click on photo for local information on Zika virus.

  • Oak Wilt Risk Status – University of Minnesota

    Frequently asked questions regarding oak wilt risk status from April 1, 2016 to July 1, 2016.

  • Pear rust

    European pear rust



578 Wilson Rd., Room. 107
East Lansing, MI 48824-6469

Phone:  (517) 355-4536
Fax:  (517)  432-0899


We assist a wide variety of people experiencing problems with plants and pests. There are many things that cause plant problems. Our laboratory specializes in diagnosing problems caused by arthropods (insects, mites, ticks, etc.), pathogens (fungi, bacteria, viruses), and nematodes.

Here are some of the samples we accept for diagnosis:

Samples may be submitted to the lab by mail or dropped off at our facility.  We will analyze the sample for a nominal fee and provide a diagnosis or identification of the problem as well as recommendations for control.

Services Not Offered

  • Soil and plant nutrient testing
  • Mushroom identification
  • Identification of household mold
  • Pesticide residue testing / Mycotoxin testing
  • Examination of bites or skin irritations on humans and animals
Michigan State University Diagnostic Services is supported by funding from the following:
Project Greeen
Michigan State University Extension
National Plant Diagnostic Network