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Pine Wood Nematode Causing Death Of Scotch Pines In Northwest Iowa

Northwest Iowa — A microscopic organism is responsible for the increasing number of deaths of pine trees in northwest Iowa.

Normal Scotch Pine showing orange bark
Normal Scotch Pine showing orange bark

We talked with Iowa Department of Natural Resources District Forester, Joe Schwartz, who tells us about the Pine Wood Nematode, the beetles they hitch a ride with, and the trees that they are infesting. He says its population has been building up in northwest Iowa for at least a decade.


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He says the population continues to build.

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He says the problem is, there is no product being made that will kill them.


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According to Schwartz, not only do you have to cut down infected trees, you need to do it quickly.

Nematode-infested Scotch Pine
Nematode-infested Scotch Pine


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He says there is a clue that you have nematode infestation.


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For more information, you can contact the DNR Forestry division or your local extension office.

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