Mosquito Biology

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Mosquito Biology

• Larval Control

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General Points

• Four development stages (egg/larva/pupa/adult)
• Immature stages need standing water
  (egg/larva/pupa)

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How long from egg to adult?

• 3 to 5 days for flood water species like Aedes
  Ochlerotatus
• 7 to 10 days for standing water species like
  Culex
• 14 to 21 days for rice field species like
  Anopheles

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District Species

• 53 California species
• 7 genera, 24 District species
• Different habitats, behavior, blood sources

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Anopheles
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Rice Fields/Clean Water Sources
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Mosquito Immature Habitats

• Agricultural
• Industrial
• Domestic
• Natural

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  Mosquito Breeding Sites Around the
Home/Community  
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Reporting of problems

• Maybe no need to report!
• If it can be drained, then problem goes away
• District website
• www.fightthebite.net
• District phone
• 1-800-429-1022 between 700-330
• Any way you can let us know!

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When are Mosquitoes Active?

• Dusk Dawn (Culex Anopheles)
• Daytime (Aedes Ochlerotatus)

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How Long do Mosquitoes live?

• Depends on season (winter/summer) and species
• In summer 2-3 weeks
• Ochlerotatus and Aedes longer lived than Culex.

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How Far can a Mosquito Fly from a Development
Site?
Flight Range Distance Species
Short Few blocks to a mile Culex pipiens Oc. sierrensis
Medium 3 to 10 miles Culex tarsalis
Long 10 to 40 miles An. freeborni Oc. melanimon
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Mosquito Control

• Water management (The Best!)
• Biological control
• Insecticides (larvicides, adulticides

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Public Awareness and Education

• Informing
• What you can do to prevent mosquitoes
• What you can do to protect yourself
• Changing Behavior
• You poured out that bucket of water, but did you
  just fill it back up with the sprinkler?