Mosquito BiologyMosquito Biology

Larval ControlLarval Control

General PointsGeneral Points

► Four development Four development stages stages (egg/larva/pupa/adult)(egg/larva/pupa/adult)

► Immature stagesImmature stages need need standing water standing water (egg/larva/pupa)(egg/larva/pupa)

How long from egg to adult?How long from egg to adult?

► 3 to 5 days for flood water species like3 to 5 days for flood water species like Aedes Aedes & & OchlerotatusOchlerotatus► 7 to 10 days for standing water species like 7 to 10 days for standing water species like CulexCulex ► 14 to 21 days for rice field species like14 to 21 days for rice field species like Anopheles Anopheles

District SpeciesDistrict Species

► 53 California 53 California speciesspecies

► 7 genera, 24 District 7 genera, 24 District speciesspecies

►Different habitats, Different habitats, behavior, blood behavior, blood sourcessources

AnophelesAnopheles

Rice Fields/”Clean Water Sources”

Mosquito Immature HabitatsMosquito Immature Habitats

►AgriculturalAgricultural► IndustrialIndustrial►DomesticDomestic►NaturalNatural

 

Mosquito Breeding Sites Around the Home/Community 

Reporting of problemsReporting of problems

►Maybe no need to report!Maybe no need to report! If it can be drained, then problem goes If it can be drained, then problem goes

awayaway

►District websiteDistrict website www.fightthebite.netwww.fightthebite.net

►District phoneDistrict phone 1-800-429-1022 between 7:00-3:301-800-429-1022 between 7:00-3:30

►Any way you can let us know!Any way you can let us know!

When are Mosquitoes Active?When are Mosquitoes Active?

►Dusk & Dawn (Dusk & Dawn (CulexCulex & & AnophelesAnopheles))►Daytime (Daytime (AedesAedes & & OchlerotatusOchlerotatus))

How Long do Mosquitoes How Long do Mosquitoes live?live?

►Depends on season (winter/summer) Depends on season (winter/summer) and speciesand species

► In summer 2-3 weeksIn summer 2-3 weeks►Ochlerotatus Ochlerotatus and and Aedes Aedes longer lived longer lived

than than CulexCulex..

How Far can a Mosquito Fly from How Far can a Mosquito Fly from a Development Site?a Development Site?

Flight RangeFlight Range DistanceDistance SpeciesSpecies

ShortShort Few blocks to Few blocks to a milea mile

Culex pipiensCulex pipiens

Oc. sierrensisOc. sierrensis

MediumMedium 3 to 10 miles3 to 10 miles Culex tarsalisCulex tarsalis

LongLong 10 to 40 miles10 to 40 miles An. freeborniAn. freeborni

Oc. Oc. melanimonmelanimon

Mosquito ControlMosquito Control

►Water management Water management (The Best!)(The Best!)

► Biological controlBiological control► Insecticides Insecticides

(larvicides, (larvicides, adulticidesadulticides

Public Awareness and Public Awareness and EducationEducation

► InformingInforming What you can do to prevent mosquitoesWhat you can do to prevent mosquitoes What you can do to protect yourselfWhat you can do to protect yourself

►Changing BehaviorChanging Behavior ““You poured out that bucket of water, but You poured out that bucket of water, but

did you just fill it back up with the did you just fill it back up with the sprinkler?”sprinkler?”