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Emerald Ash Borer confirmed in Worthing

The South Dakota Department of Agriculture (SDDA) has confirmed that an infestation of emerald ash borer (EAB) has been discovered in Worthing, South Dakota. In 2018, the first confirmed infestation was identified in Sioux Falls. EAB is an invasive insect that has killed millions of ash trees in 35 states.

Quarantine regulations restrict the movement of firewood and ash materials at all times from Lincoln, Turner, and Minnehaha Counties. These regulated ash materials include: ash nursery stock; ash logs, lumber, wood chips or mulch, including trimmed ash tree branches; and pallets made out of ash. Movement of firewood from any hardwood species, whether intended for commercial or private use, is also restricted within the quarantine area.

The City of Worthing recommends ash trees within the quarantine area not be pruned or removed unless necessary until after Labor Day to prevent spread of EAB. As a precautionary measure, residents within the quarantine area should consider treating their ash trees that remain in good condition. Treatment information, as well as more information on EAB and response efforts, can be found by visiting the SDDA’s dedicated EAB website.

Questions regarding EAB in Worthing should be submitted to or by calling 605.372.4113.

Agriculture is a major contributor to South Dakota’s economy, generating $32.5 billion in annual economic activity and employing over 132,000 South Dakotans. The South Dakota Department of Agriculture’s mission is to promote, protect, and preserve South Dakota agriculture for today and tomorrow. Visit us online at or find us on Facebook, Instagram, and Twitter.


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