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Pennington County Weed and Pest - State and Local-Declared Pests

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Scott Guffey, Supervisor
Craig Smith, Crew Leader
Ruth Sisk, Secretary

Pennington County Weed & Pest
3607 Cambell Street
Rapid City, SD 57701
Phone:  (605)394-5320
Fax:  (605)716-3793
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Pennington County State-Declared Pests

Black-tailed Prairie Dog Black-tailed prairie dog photo courtesy of John and Karen Hollingsworth, U.S. Fish and Wildlife Service.

The majority of the prairie dogs are found in western South Dakota.  In Pennington County, although they are found throughout the county, very few are in the Black Hills.  On average a black-tailed prairie dogs are 14 to 17 inches long including a 3 to 4 inch black-tipped tail.  They have sturdy, squat muscular bodies with muscular, short legs for digging.  Prairie dogs range from brown to tan in color.   Their hair is course with little under fur.  Prairie dogs live in burrows approximately 10 yards apart, 3 to 14 ft deep, and 10 to 100 ft long.


Gypsy Moth Gypsy Moth larvae; photo courtesy of USDA APHIS PPQ Archives, USDA APHIS PPQ, www.forestryimages.org Gypsy Moth adults; photo courtesy of USDA APHIS PPQ Archives, USDA APHIS PPQ, www.forestryimages.org

No infestations are currently found in South Dakota.  USDA APHIS and the South Dakota Department Agriculture does extensive trapping to monitor gypsy moth activity in the state.   The Gypsy Moth can be devastating in defoliating trees and shrubs. They are mainly found in the Northeastern states, but are starting to migrate west.




Pennington County Local-Declared Pests

Mountain Pine Beetle Photo courtesy of Ron Long, Simon Fraser University, www.forestryimages.org

The Pine Beetle can be found throughout the Black Hills.  It is a small insect, 3 to 8 mm long, black to brown in color.  It is a native insect to the forest of western North America and attack pine trees.  Adults tunnel under the bark of living trees, mate and lay eggs.  Larvae then feed and winter inside the tree until it is ready to pupae out as an adult in the summer.




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Photos courtesy of USDA Forest Service Archives. and US Fish & Wildlife Service

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