Extent of available data.
Data Categories:Biota
Data Source:MN Dept. of Natural Resources
Date Acquired:06/12/2026
Data Available:Yes
Metadata Available:Yes
Tags:diseases, forest health, insects, tree damage, tree health
This dataset shows where tree damage was delineated in aerial surveys in 2025. It was developed by the Minnesota Department of Natural Resources. Flights occurred from May to August. The most common disturbers include spruce budworm, eastern larch beetle, larch casebearer, and emerald ash borer. This survey indicates where significant tree defoliation and mortality occurred and aids in monitoring trends in forest health conditions.