Forest Insect & Disease Newsletter

Managing Minnesota's Forest. DNR forester and landowner walking in landowner's woodlands

Summer 2018

Jessica hartshorn shelfie showing off the woods

A fond farewell

Jessica Hartshorn bids a fond farewell to Minnesota.

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arborvitae that was killed by winter drying

Dry and windy April weather killed scattered evergreens

Late April warm and windy spell killed evergreens.
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oak tree

Some bur and white oaks barely leafed out in central Minnesota, Part I

A puzzling problem on bur oaks in central Minnesota.
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ash tree

Intense seed crop on maple and Siberian elm

Sometimes trees just make a lot of seeds.
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spruce with dead lower branchs

Wet growing seasons and spruce windbreaks: a bad combination

How to grow healthy spruce.
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Northern white cedar near Hill City showing yellowing shoots from arborvitae leafminer infestation

Is your white cedar looking yellow?

A tiny moth yellows arborvitae in northeast Minnesota.
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Jack pine budworm larvae captured for educational purposes.

Jack pine budworm population continues to fall in Bemidji area

Jack pines getting a break from budworm around Bemidji.
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pine forest

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