Vector Control

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The Community Health Department is responsible for the mosquito spraying in the City of Del Rio. Mosquitos can cause outbreaks of several mosquito-borne diseases of public health concern in Texas, including encephalitis, West Nile virus, dengue fever and dog heartworm. Effective mosquito control helps to control mosquito populations to reduce or prevent these outbreaks and serves to enhance the enjoyment of outdoor activities by everyone in the community.

One of the primary functions of the Vector Control Program is educating the public about eliminating mosquito breeding sites around the home, as well as enforcing City Ordinances against having properties with overgrown weeds and standing water.

For more information about Vector Control call (830) 774-7250.

Vector Spray Pattern Map

vector spray schedule
Vector Spray Pattern Map

Spray Pattern

Week 1
Week 2

The program begins on the 4th Monday in May and ends on the last Friday in October.

At the end of week 2, the cycle will begin with week 1 and will continue to go through the cycle until the end of the mosquito season. IF WEATHER PERMITS.

Mosquito Management

In performing Mosquito Management, surveillance (identifying sites with mosquito larvae and collecting, identifying and testing mosquitoes) is essential for the planning, operation, and evaluation of an effective mosquito control program.

Other mosquito control functions include treating locations where there is standing water with larvicide to prevent mosquito larva from developing into adult mosquitoes and reducing adult mosquito populations using environmentally friendly methods and current technology and equipment.

How to prevent mosquito breeding

  • Look around the outside of your house and get rid of any tin cans, jars, plastic containers, plant pots, old tires and any other containers that can hold stagnant water.
  • Properly dispose of old tires.
  • Make sure roof gutters drain properly.
  • Keep all swimming pools cleaned and chlorinated even if they are not being used.
  • Remove any standing water from culverts.
  • Store plastic wading pools, buckets, barrels and wheelbarrows upside down so that the water cannot accumulate in them.
  • Change the water in birdbaths and pet dishes at least once a week.
  • Aerate ornamental ponds or stock them with fish.
  • Weeds, tall grass and shrubbery provide an outdoor home for mosquitoes, so keep your yard trimmed.
  • Use landscape as a way to prevent accumulation of stagnant water.

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