Tree-destroying gypsy moths spreading in NE Minn.

Gypsy moth
The gypsy moth was introduced to North America in an effort to create a silk industry. Moth populations exploded because it has no natural predators.
Courtesy Purdue University

Gypsy moths are spreading across northeastern Minnesota, so the state is increasing the number of acres being treated for the tree-destroying pest.

Minnesota Department of Agriculture spokesman Michael Schommer says there's been a big increase in the number of gypsy moths caught in monitoring traps.

Schommer says officials are seeing an increase in the infestation in Minnesota, especially in the northeastern corner of the state.

In response, the Duluth News Tribune reports the state will treat more than 100,000 acres this year, compared with 71,500 acres in the area last year.

The state is holding several open houses next week to discuss treatment plans.

Gypsy moths have been moving west across the U.S. for more than 100 years. The caterpillars can defoliate large sections of forest.

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Information from: Duluth News Tribune

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