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Identifying and Managing Christmas Tree Diseases, Pests, and Other Problems
  • Diseases
    • Annosus Root Rot
    • Phytopthora Root Rot
    • Grovesiella Canker
    • Interior Needle Blight
    • Rhabdocline Needle Cast
    • Swiss Needle Cast
    • Melampsora Needle Rust
    • Pucciniastrum Needle Rust
    • Uredinopsis Needle Rust
  • Insects
    • Twig Aphid
    • Conifer Root Aphid
    • Conifer Aphids
    • Balsam Wooly Adelgid
    • Cooley Spruce Gall Adelgid
    • Douglas-fir Needle Midge
    • Spruce Spider Mite
    • Eriophyid Mites
    • Root Weevil
    • Douglas-fir Twig Weevil
  • Disorders
    • Interior Needle Loss
    • Yellow-green Mottle Syndrome
    • Current Season Needle Necrosis (CSNN)
  • Damage
    • Weather Damage
    • Frost Damage
    • Winter Injury
    • Drought
    • Heat Damage
    • Chemical Damage
    • 2, 4-D and Triclopyr
    • Fertilizer Burn
    • Glyphosate (Roundup)
    • Triazines
    • Vertebrate Damage
    • Deer, Elk, Mice & Voles
    • Rabbits & Birds
    • Mechanical Damage
    • Mechanical Damage
  • About
    • Authors & Acknowledgments
    • Copyright and Disclaimer
  • Order
    • Order Publication
  • English
  • Español

Damage

Weather Damage

Frost Damage

Winter Injury

Drought

Heat Damage

Chemical Damage

2, 4-D and Triclopyr

Fertilizer Burn

Glyphosate (Roundup)

Triazines

Vertebrate Damage

Deer, Elk, Mice & Voles

Rabbits & Birds

Mechanical Damage

Mechanical Damage

Identifying and Managing Christmas Tree Diseases, Pests, and Other Problems
This field guide is for Christmas tree growers, field workers, and anyone interested in the production of Christmas trees.

Contact Info

Extension Communications
422 Kerr Administration
Corvallis, OR 97331

(800) 561-6719 or (541) 737-2513

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  • Diseases
    • Annosus Root Rot
    • Phytopthora Root Rot
    • Grovesiella Canker
    • Interior Needle Blight
    • Rhabdocline Needle Cast
    • Swiss Needle Cast
    • Melampsora Needle Rust
    • Pucciniastrum Needle Rust
    • Uredinopsis Needle Rust
  • Insects
    • Twig Aphid
    • Conifer Root Aphid
    • Conifer Aphids
    • Balsam Wooly Adelgid
    • Cooley Spruce Gall Adelgid
    • Douglas-fir Needle Midge
    • Spruce Spider Mite
    • Eriophyid Mites
    • Root Weevil
    • Douglas-fir Twig Weevil
  • Disorders
    • Interior Needle Loss
    • Yellow-green Mottle Syndrome
    • Current Season Needle Necrosis (CSNN)
  • Damage
    • Weather Damage
    • Frost Damage
    • Winter Injury
    • Drought
    • Heat Damage
    • Chemical Damage
    • 2, 4-D and Triclopyr
    • Fertilizer Burn
    • Glyphosate (Roundup)
    • Triazines
    • Vertebrate Damage
    • Deer, Elk, Mice & Voles
    • Rabbits & Birds
    • Mechanical Damage
    • Mechanical Damage
  • About
    • Authors & Acknowledgments
    • Copyright and Disclaimer
  • Order
    • Order Publication
Identifying and Managing Christmas Tree Diseases, Pests, and Other Problems

Identifying and Managing Christmas Tree Diseases, Pests, and Other Problems

This field guide is for Christmas tree growers, field workers, and anyone interested in the production of Christmas trees.
  • OSU Extension Publications
    • OSU Extension Catalog
    • Best Management Practices for Christmas Tree Export
    • Buenas Prácticas de Manejo para la Exportación de Árboles de Navidad
    • Identifying and Managing Christmas Tree Diseases, Pests, and Other Problems
    • Identificación y Manejo de Enfermedades, Plagas y Otros Problemas en Árboles de Navidad
  • Identifying and Managing Christmas Tree Diseases, Pests, and Other Problems
    • Diseases
      • Annosus Root Rot
      • Phytopthora Root Rot
      • Grovesiella Canker
      • Interior Needle Blight
      • Rhabdocline Needle Cast
      • Swiss Needle Cast
      • Melampsora Needle Rust
      • Pucciniastrum Needle Rust
      • Uredinopsis Needle Rust
    • Insects
      • Twig Aphid
      • Conifer Root Aphid
      • Conifer Aphids
      • Balsam Wooly Adelgid
      • Cooley Spruce Gall Adelgid
      • Douglas-fir Needle Midge
      • Spruce Spider Mite
      • Eriophyid Mites
      • Root Weevil
      • Douglas-fir Twig Weevil
    • Disorders
      • Interior Needle Loss
      • Yellow-green Mottle Syndrome
      • Current Season Needle Necrosis (CSNN)
    • Damage
      • Weather Damage
      • Frost Damage
      • Winter Injury
      • Drought
      • Heat Damage
      • Chemical Damage
      • 2, 4-D and Triclopyr
      • Fertilizer Burn
      • Glyphosate (Roundup)
      • Triazines
      • Vertebrate Damage
      • Deer, Elk, Mice & Voles
      • Rabbits & Birds
      • Mechanical Damage
      • Mechanical Damage
    • About
      • Authors & Acknowledgments
      • Copyright and Disclaimer
    • Order
      • Order Publication