Floodwater mosquitoes near Columbia State Park

The area around Columbia State Park was hydraulically mined during the gold rush, and many dug-out areas remain. These fill with water during the winter, becoming vernal pools. Floodwater mosquitoes like these pools.

Here are photos and videos showing how infested these pools can become. Included below is a compilation of mosquitoes suffocating videos, after a treatment with the BVA 2 oil.

11 May 2017.

Mosquito larvae in dipper cup, Columbia California, 11 May 2017.

Vernal pool (probably remains of hydraulic mining) loaded with larvae of floodwater mosquitoes. 11 May 2017.

Vernal pool (probably remains of hydraulic mining) loaded with larvae of floodwater mosquitoes. 11 May 2017.