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  1. Home
  2. Assistance
  3. Nurture nature
  4. Tree care

Forest pests and diseases

  • Bur oak blight
  • Diplodia
  • Eastern larch beetle
  • Eastern spruce budworm
  • Emerald ash borer
  • Forest tent caterpillar
  • Heterobasidion root disease
  • Oak wilt
  • Pine bark beetles
  • Spongy moth (formerly gypsy month)
  • Twolined chestnut borer
  • White pine weevil

Publications

  • Annual reports
  • Forest Insect & Disease Newsletter

Related links

  • Forest health contacts
  • Invasive terrestrial plants
  • Tree planting and care

Forest health

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DNR Forestry's forest health unit is responsible for surveys, evaluations, and impact assessments of forest pests and diseases as well as technical assistance for public and private landowners on tree and forest health and invasive species.

Quick Links

  • What's wrong with my deciduous trees and shrubs
  • What's wrong with my evergreen trees and shrubs
  • Storm damage and prevention
  • Forest insect & disease newsletter
  • Invasive plants
  • Invasive animals
  • Firewood information

Forest Health Monitoring

  • How to detect and assess hazardous defects in trees
  • Rapid assessment of ash and elm resources in Minnesota communities

Forest Health Management

  • Minnesota DNR Oak Wilt Guide
  • Spruce problem diagnosis for yard trees
  • White pine planting and care

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Minnesota Department Of Natural Resources
  • Questions?
  • Call 651-296-6157 or 888-646-6367
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