Types of Treatment

Larvicide


Due to the terrain and tall trees in our area we use two separate approaches for control. The first is a treatment of larvicide which targets aquatic larval mosquitoes coinciding with peak periods of larval development. This product is applied on an individual basis by property owners who have standing water on their property. Tires, puddles, swamps, storm drain and buckets containing water are all sources which are best controlled by hand applying a larvicide.

Look around your property and help eliminate mosquitos:
1. Empty standing water from old tires, buckets, toys, etc.
2. Empty and change the water in bird baths, fountains,
wading pools, rain barrels and potted plant trays
at least once a week.
3. Drain or fill temporary pools with dirt.
4. Keep swimming pools treated and circulating.
5. Make sure window and door screens are “bug tight”.
6. Replace outdoor lights with yellow “bug” lights.

Adulticide


Adulticiding is controlling mosquitoes in their adult stage. Adulticides are products that rapidly reduce adult mosquito populations. This can become necessary when larval control measures are insufficient or not feasible. Adulticiding may be initiated when there is evidence of significant populations of mosquitoes in a region or if there is evidence of mosquito borne disease. The most common method of adulticiding is ultra-low volume (ULV) spraying. ULV spraying is the process of putting very small amounts of liquid into the air as a fine mist of droplets. These droplets float on the air currents and quickly eliminate mosquitoes that come into contact with them. ULV adulticides are applied when mosquitoes are most active-typically early evening or pre-dawn. Adult mosquito populations are controlled by spraying an adulticide using helicopter aerial spraying.

During the 3-4-month annual mosquito season we spray on a 14 day cycle. During times where the mosquito population may be diminished, we may skip spraying and maintain a wait and see stance. Aerial spraying is especially effective when performed during the early morning hours. We have found that spraying between 5:30am to 6:30am provides the best coverage because there is little if any wind. Should a breeze develop during planned spraying, we may reschedule operations for a different day. The Fish Lake airport is used as a staging area supporting the helicopter operations. If you’re up early and want to watch, you will find fuel supply trucks, helicopter transport vehicles along with equipment mixing and loading chemicals for spraying.