Some pests in Saint Joseph County have the potential to spread disease to humans and are known as vectors. In order to control pests effectively and prevent the possible spread of vector-borne disease, Integrated Pest Management (IPM) must be applied. IPM uses a simple approach that includes the following concepts:

1. Don’t attract pests.

2. Keep pests out.

3. Get rid of pests safely and effectively  if they are present.

The Health Department will investigate complaints involving residences that are infested with pests that can spread disease to humans. Please note that the Health Department does not treat for disease-spreading pests, but can order the property owner to treat.

Bed bugs are not known to spread disease to humans and are considered a nuisance pest. The Health Department does not investigate bed bug complaints.

Complaints regarding mosquitoes are taken case-by-case. The Health Department will respond to complaints regarding stagnant swimming pools or other potential mosquito breeding habitats.

Additional Resources


ZIKAStay up to date with Zika information.

Click on the Pests and Vectors Below to Learn More


aedes aegypti



Bed Bugs


Rats & Mice