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Mosquito Larva

Overview

​Mosquito larvae are the immature stage of mosquitoes and develop in stagnant water. Controlling larvae is the most effective way to reduce adult mosquito populations.

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Target species: 

  • Aedes aegypti (primary dengue vector)

  • Aedes albopictus (outdoor secondary dengue vector)

  • Culex quinquefasciatus (nuisance & filariasis vector)

  • Anopheles spp. (malaria vector)

Biology

  • Egg → Larva → Pupa → Adult

  • Larval stage lasts 5–10 days depending on species and temperature

  • Rapid multiplication; one untreated site can produce hundreds of adult mosquitoes

Behaviour

  • Aquatic stage: live in water, feed on microorganisms and organic debris

  • Often found at the water surface for breathing

  • Sensitive to water temperature and sunlight

  • Clusters indicate potential rapid adult emergence

  • Tip: Treating larvae before they emerge prevents adult mosquito outbreaks.

Signs of Infestation

  • Wriggling larvae in standing water (pools, drains, containers)

  • Increased adult mosquito activity nearby

  • Presence of pupae (ready-to-emerge mosquitoes)

Where They Breed

  • Aedes aegypti / albopictus: Small containers, flower pot trays, water jars, discarded items that collect rainwater

  • Culex quinquefasciatus: Polluted or stagnant water like drains, septic tanks, soakaways

  • Anopheles spp.: Clean or partially shaded stagnant water: ponds, ditches, puddles

Risk & Impact

How to Control

  • Disease vectors: Dengue, Zika, Malaria, Filariasis

  • Nuisance bites and stress

  • Major concern for homes, construction sites, and public areas

  • Apply larvicide directly to water sources

  • Remove unnecessary stagnant water

  • Monitor treated areas regularly for new larvae

Recommended Solutions

  • Specialized larvicide for mosquito breeding sites

  • Safe for drains, containers, and ornamental water bodies

  • Rapidly eliminates larvae before adult emergence

Common Mistakes

  • Only targeting adult mosquitoes

  • Ignoring small, hidden water sources

  • Inconsistent larvicide application

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