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Mosquitoes' Main Aquatic Habitats

Aquatic habitats are containers in which eggs develop into adult mosquitoes.  Mosquitoes that transmit dengue lay eggs on the walls of water-filled containers in the house and patio. The eggs hatch when submerged in water and can survive for months.  Mosquitoes can lay dozens of eggs up to 5 times during their lifetime. 

There is a great variety of man-made containers on backyards or patios that collect rain water or that are filled with water by people where dengue vectors thrive. Disposing of unused containers, placing useful containers under a roof or protected with tight covers, and frequently changing the water of animal drinking pans and flower pots will greatly reduce the risk of dengue infections. Water storage containers should be kept clean and sealed so mosquitoes cannot use them as aquatic habitats.

Common containers in which eggs develop into adult dengue mosquitoes

Natural plant containers

Image: Tree Cavity

Rain-filled cavities in trees, bamboo internodes, leaf-axils of plants

Artificial containers

Containers that are filled with rain water

Large discarded Containers

Large discarded containers (tires, damaged appliances) and small discarded containers (paint cans)

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Image: trash can; low plastic container, old  plastic riding jeep

Trash cans, pails or buckets, painting trays, toys

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Containers that are filled with water by people and also collect rain water

Image: Water Storage

Water-storage containers (wells, tanks, cisterns, barrels, jars, buckets).

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Image: Ornamental Containers

Ornamental or recreational containers (plant pots and dishes, plastic pools, rooting plants in water/ aquatic plants)

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Image: Animal Drinnking Pans

Animal drinking pan

Image: Leaking Water Meters

Leaking water meter

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Image: Open/Broken Septic Tanks

Broken or unsealed septic tanks 

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Contact Us:
  • Centers for Disease Control and Prevention
    Dengue Branch
    1324 Calle Cañada
    San Juan, Puerto Rico
  • 800-CDC-INFO
    TTY: (888) 232-6348
  • Contact CDC–INFO The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Road Atlanta, GA 30329-4027, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO
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