How to Manage Pests

UC Pest Management Guidelines


Wild Pigs

Scientific Name: Sus scrofa

(Reviewed 9/08, updated 9/08)

In this Guideline:

Description of the Pest

Wild pigs include both domestic swine that escaped captivity and wild boar. Wild pigs are commonly found in or near the foothill areas, and they prefer areas of dense brush. During periods of hot weather, they will "wallow" in water or moist soil.


Wild pigs will feed on insects and underground vegetation. This "rooting" behavior can disrupt parts of the orchard floor. Pigs will also create large uneven basins or wallows in moist soil during hot weather. Both rooting and wallows can disrupt the application of irrigation water. If a pig gets tangled up in flexible irrigation equipment, it will pull it out. Pigs can eat lower fruit on the tree.


Wild pigs are considered game animals and fall under the jurisdiction of California Department of Fish and Game. Pigs can be trapped or shot, but this requires a depredation permit. In some CA counties, the Agricultural Commissioner has trappers who can assist. Fencing can be done but is expensive. Frightening devices can be used for a temporary solution.


[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Citrus
UC ANR Publication 3441


  • R. E. Marsh (emeritus), Wildlife, Fish and Conservation Biology, UC Davis
  • T. P. Salmon (emeritus), UC Cooperative Extension, San Diego County
Acknowledgment for contributions to Vertebrates:
  • M. W. Freeman, UC Cooperative Extension, Fresno County

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Statewide IPM Program, Agriculture and Natural Resources, University of California
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