Vi utvecklar metoder för miljömässigt balaserad kontroll av myggproblem

The aim of Biological Mosquito Control is

to reduce the abundance of floodwater mosquitoes to acceptable levels so that people can enjoy living in and visiting the Nedre Dalälven region.

2020-07-27 11:32

We are looking for a vikarie entomologist for full time lab and field work.

If you or someone you know is interested, take a look at the listing here (Swedish Only)

2020-07-17 11:31

Forshaga had it's 1st mosquito treatment

After our team observed flooding and hatching last week. This week, after a thorough inspection throughout the area, we conducted our first control treatment in the area. On Tuesday, July 14th 154 hectares were treated by helicopter. Through physical and digital follow up we see that the treatments were successful. There remains some risk of hatching in areas where we do not have permission from landowners but otherwise, local residents should not be negatively impacted by the floodwater mosquitoes. 

2020-06-15 15:05

Successful Mosquito Treatment

The treatment effort took place on May 28 and included a total of 166 ha, distributed in areas at Hallsjön, Storsjön, Vivastbo and Sevallbo. The effort yielded good results and we do not expect any hatching of flood mosquitoes in the near future.

2020-05-27 16:31

The first mosquito control measure of 2020 will take place this week!

Local rain has created some flooding conditions in areas that are disjointed from the Nedre Dalälven. Therefore a treatment against these floodwater mosquitoes is planned for Thursday this week. The areas identified for control are Hallsjön in Huddunge, Storsjön in Möklinta, Vivastbo in Västmanland and Sevallbo in Gävleborgsland.

2020-05-18 15:00

The appeal will not adversely effect this year's mosquito control

In lieu of the appeal against areas excluded from mosquito control, there was some uncertainty as to whether our permits would be delayed in the areas in which the Swedish Environmental Protection Agency had granted permission. Therefore, NEDAB had submitted to the Land and Environmental Court a request to honor the permits while deliberating on the particular areas in question. The Land and Environmental Court decided that the Swedish Environmental Protection Agency's decision shall apply immediately in those parts that have not been appealed. Thus, there is no obstacle to fight in the areas with permission if necessary.


Week 37

This is the last week for our non-target organism and mosquito monitoring programs.

Week 38

The mosquito control season comes to an end as we bring in the final traps related to our non-target organism program.

Week 39

We continue working according to our annual calendar.


There are around 50 species of mosquitoes in Sweden and we have found 33 species in the area around River Dalälven.

Mosquito control

Larvae of floodwater mosquitoes are controlled by aerial application of VectoBac G granules, which contain Bti as active ingredient and are dispersed by helicopter.

Non-target programme

To study the potential environmental impact of Bti, we have a non-target organism  programme.

About us

Biological Mosquito Control is a project within Nedre Dalälven Utvecklings AB (NEDAB) with offices in Uppsala and Gysinge.