Forest Insects and Diseases

Forest insects and diseases can affect all aspects of the way we use our forest resource. A walk in the woods is not as enjoyable if you are surrounded by defoliated trees. Economic losses can result when valuable stands are weakened or killed. Forest Health is a section within the Forest Protection Division of the Department of Natural Resources. This section provides technical advice and management options to forest stakeholders who are attempting to deal with pest problems.

• Don't Move Firewood

• Blackhead Budworm
• Balsam Fir Sawfly*
• Balsam Fir Sawfly
• Balsam Gall Midge*
• Balsam Twig Aphid*
• Balsam Woolly Adelgid*
• Balsam Woolly Aphid*
• Brown Spruce Longhorn Beetle
• Best Management Practices for Dealing With Brown Spruce Longhorn Beetle (English PDF)
• Pratiques exemplaires de gestion longicorne brun de l'épinette (French PDF)
• Dingy Ground Beetle
• Gypsy Moth*
• Hemlock Looper*
• Hylobius Weevil
• Pale Winged Grey
• Seedling Debarking Weevil
• Spruce Beetle
• Spruce Budworm*
• Whitemarked Tussock Moth
• Whitemarked Tussock Moth (Colour PDF)

Diseases

• Yellow Witches' Broom*