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How to Get Rid of Dirt Dobbers From a Roof

Dirt dobber wasps, also known as mud daubers, are known for building nests made from mud. These solitary flying insects do not nest in hives, but rather build their brown, tube-shaped shells to grow and hatch their offspring. Although they may look dangerous, the sting of a dirt dobber is generally ranked on the same pain level as a red ant bite. Their nests look unsightly and homeowners often want them removed from roofs and garage interiors. If they are not removed, some dirt dobbers will reuse them season after season.

Things You'll Need

  • Putty knife
  • Soapy water
  • Wire brush
  • Hose
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Instructions

    • 1

      Spray the area with a wasp control pesticide to ensure the wasps stay away while your are removing the nests. These wasps are not typically aggressive and generally do not sting unless they are forced to defend their physical space. Since they are solitary, you may also consider killing lone wasps with a fly swatter.

    • 2

      Remove the brown nesting tube from the roof with a putty knife or other sharp, flat object. Scrape the knife and the tube to break it, but be gentle enough not to damage the roof or side of the house.

    • 3

      Use soapy water to remove the caked-on mud from the roof or siding. Wash away the residue with a hose.

    • 4

      Caulk cracks or screen in areas of the roof that may harbor spider nesting areas. Dirt dobbers prey on spiders, so limiting a spider's access to the nooks and crannies on a roof will limit the appearance of these wasps.