Crop & Pest Report

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Fall Needle Drop in Conifers (09/13/18)

During autumn, deciduous trees like green ash and linden change color and lose their leaves. This is normal and expected. It happens every year and people are used to it. When needles of evergreen trees turn brown and die, it’s definitely unexpected, but not necessarily abnormal.

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lz

Trapping for Emerald Ash Borer (05/24/18)

Crews are placing purple prism traps across the state to monitor for emerald ash borer (EAB).

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Tent Caterpillars are Feeding on Chokecherry and Other Trees (05/24/18)

Eastern tent caterpillars (Malacosoma americanum) and forest tent caterpillars (Malacosoma disstria) are feeding on tree foliage now.

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l.johnson EAB

Emerald Ash Borer a Giant Leap Closer to North Dakota (05/03/18)

The Canadian Food Inspection Agency (CFIA) confirmed emerald ash borer (EAB) in Winnipeg, Manitoba in December 2017.

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forestry.zeleznik.bergdahl.ash anthracnose

Ash Anthracnose – A Recurring Problem (05/28/15)

Cool and moist weather during the period of ash budbreak has again led to high levels of ash anthracnose, a leaf disease common to our region.

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