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SD reports first emerald ash borer infestation

In this cross-section of an ash tree, you can see the tunnels created by the red-headed ash borer. The more dangerous emerald ash borer remains right under the bark of the tree. Forum News Service file photo

MITCHELL, S.D. -- The first confirmed emerald ash borer infestation in South Dakota has been discovered in northern Sioux Falls, bringing the tree-killing beetle to within 70 miles of Mitchell.

Ash trees make up almost a third of the trees planted in South Dakota communities and also are also common in windbreaks.

Insecticide to treat ash trees can be expensive, Mitchell Parks Supervisor Steve Roth said Wednesday, and the city lacks a formal plan for dealing with tree deaths.

Authorities have warned for years the invasive insect responsible for killing tens of millions of ash trees in 32 states would spread here.

State Secretary of Agriculture Mike Jaspers implemented an immediate quarantine Wednesday to slow the beetle's spread.

Forum News Service

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