Pests of Medical Interest
- Pests of Medical Interest Home
 - Head Lice
 - Bed Bugs
 - Asian Lady Beetles
 - Fleas
 - Black Flies
 - Deer/Horse Flies
 - Spiders
 - Scabies
 - Bird Mites
 - Delusory Parasitosis
 
Related Topics
Contact Info
Infectious Disease Epidemiology, Prevention and Control Division
                  651-201-5414
                  Black Flies
Black flies, also called biting gnats, are common pests during the warmer months of the year. Immature black flies develop in stream and river habitats.
- Biting Gnat/Black Fly Control
Black flies do not transmit any diseases to humans in Minnesota but their bite can be quite painful and itchy. 
          Last Updated: 10/20/2022