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Learn more about the industry's most target-specific biorational for control of West Nile virus vectors.
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Culex QuinquefasciatusCulex quinquefasciatus
Credit: Jim Gathany
Source: CDC

Species of Culex can be found throughout the globe, except at the extreme northern latitudes. Depending on the region and species, Culex mosquitoes can carry a wide array of public health threats.

Culex mosquitoes breed in various types of stagnant water. Preferred oviposition habitats such as rainwater barrels, catch basins, storm drains, and septic tanks are rich in organic material. Eggs are laid in raft-shaped batches on the water surface. 

While Culex will lay their eggs in a variety of standing waters, these habitats can typically be categorized into four ecotypes:


Sewage Systems

  • General description: These highly polluted habitats contain sewage or mixed sewage and rainwater. These habitats include cess pits, septic ditches, septic tanks, and blocked sewerage systems.
  • Key sewage system Culex include:

Container Sources

  • General description: These habitats are generally man-made sources that will catch and hold water, such as waste tires, buckets, and rain barrels.
  • Key container Culex include:
drainage system

Drainage Systems

open habitat

Open Habitats

Links to suggested control solutions

VBC Biorational
Open Habitats
VectoLex WDG
VectoBac WG/WDG
VectoBac 12AS
Open habitats with minimal vegetation
VectoLex Granules Open and vegetated habitats
VectoMax Granules   Multi-habitat, multi-species solution for standing water

Drainage Systems
VectoLex WSP Catch basins, channels, roadside ditches, and underground storm water/drainage systems
VectoLex WDG
VectoMax WSP
VectoMax Granules
VectoBac WG/WDG
VectoBac 12AS
Contained Sources
VectoLex WDG Waste tires, buckets, and rain barrels
VectoLex Granules
VectoMax Granules Multi-habitat, multi-species solution for standing water