Frequently Asked Questions

Services & Programs         Dead Birds         Prevention         Mosquitoes 

Saginaw County Mosquito Abatement Commission (SCMAC) Services & Programs

Does it cost anything to use SCMAC’s service?

There is no fee for service.  Saginaw County residents, however, pay taxes that provide the funds for program operation. Please call the office if you have a mosquito problem. 

How does SCMAC’s program control larval and adult mosquitoes?

Products such as Bacillus thuringiensis subsp. israelensis (Bti) are used to treat water in ponds, storm drains, ditches, etc., where mosquito larvae are found or may develop later. This is called larviciding. 
Ultra Low Volume (ULV) sprays are used to help control adult mosquitoes. This is called adulticiding.

What do the planes do?

Planes are used at the start of our Spring larviciding program to spread Bti on the flooded woodlots across the county. More information about our aerial treatment is available on the larviciding program page.

How often do the yellow trucks spray?

Truck spraying (adulticide) frequency, whether weekly, bi-weekly, or monthly depends on mosquito population or mosquito-borne disease. Spraying for adult mosquitoes only controls mosquitoes and disease present at the given time of spray and offers no residual control. Truck spray knocks-down the amount of nuisance or disease activity and may require frequent or occasional treatment.

Dead Birds

What do I do with a dead blue jay or crow?

Please call the office to report corvid birds (blue jays and crows) that have died in the last 24 hours.
Do not handle the bird, we will send a technician to collect the bird for testing.

What do dead birds have to do with mosquitoes?

Birds carry certain diseases like West Nile virus (WNV). Mosquitoes bite the infected birds and then transmit the disease. Blue jays and crows usually die within 24 hours after contracting WNV. Therefore, these corvid birds are a good indicator of WNV activity.


What can homeowners do around their own properties to reduce mosquitoes?

Homeowners can eliminate mosquito breeding sites on their property by periodically emptying water from sources such as buckets, tires, gutters, trash-cans etc. or keeping water clean in swimming pools, dog bowls, bird-baths, etc.

Why are mosquitoes controlled in the larval stage?        

The most effective and economical way to control mosquitoes is to prevent them from emerging as biting adults. SCMAC prefers to use products with Bti, a bacteria found in nature.

What is the most effective protection against biting insects?        

The most effective treatment is a repellent containing DEET, but there are other repellents available.
Cover your body with light colored clothing (long sleeves, long pants etc.) to make it harder for mosquitoes to bite.


Visit the American Mosquito Control Association (AMCA) FAQ page.

Copyright 2001-2018 Saginaw County Mosquito Abatement Commission - (989) 755-5751