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.

2020-07-17 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. 


Week 46

Consultation with länsstyrelsen Varmländ regarding the potential to reduce Bti as part of Naturvårdsverket's conditions for permit approval.

Week 47

We continue to work according to our annual calendar

Week 48

Meeting with authorities within Nedre Dalälven to present an account of mosquito control efforts in 2020.


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.