Pine Wilt Continues to Kill Nebraska Trees

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submitted by Sarah Browning, UNL Extension Educator

Evergreen trees can develop brown needles and branches in spring due to winter burn or from a Sphaeropsis tip blight infection. But the most serious cause of browning and death in evergreens is pine wilt, caused by the pine wood nematode. Many trees can be seen now in landscape plantings or windbreaks that are completely dead and brown, and a majority of these were probably killed by pine wilt.

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