The University of Wisconsin-Madison Insect Diagnostic Lab was established in 1978 to provide timely and accurate identification of insects and insect-damaged plant material from around Wisconsin. Part of the mission of the IDL is to provide support to the county extension offices throughout the state. In addition, the IDL provides diagnostic services for the general public, private companies, agricultural producers, pest control professionals, the green industry, medical professionals, and other groups.
The lab processes over 2,400 samples each year. Homeowners are encouraged to check with their local extension office for help first because many samples can be handled in a more efficient manner locally. Mail in samples, emails (with pictures if possible) and walk in samples are all accepted. At the present time there are no charges for Wisconsin residents.
The IDL also provides outreach services for the UW-Madison Department of Entomology.