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Insects and Diseases:
Conifers (evergreen) - By Species

Douglas-Fir (Pseudotsuga):
Armillaria Root Disease USFS
Armillaria Root Rot
Christmas Tree Pest Manual (USFS)
Disease Management Recommendations for Trees and Shrubs
(Swiss Needlescast)
Dwarfmistletoe of Douglas-fir 
Insecticide Suggestions to Manage Landscape Tree and Shrub Insects
HOW to Identify and Control Rhabdocline and Swiss Needlecasts of Douglas-Fir (USFS)

Fir (Abies):
Armillaria Root Disease USFS
Armillaria Root Rot
Christmas Tree Pest Manual (USFS)
HOW to Identify and Manage Needlecast Diseases on Balsam Fir (USFS)

Juniper/Cedar (Juniperus):
Armillaria Root Disease USFS
Armillaria Root Rot
Annosus Root Rot in Eastern Conifers (USFS)
Christmas Tree Pest Manual (USFS)
Disease Management Recommendations for Trees and Shrubs 
(Cedar-Apple type Rusts, Twig Blight)
Scale Insects of Trees and Shrubs

Larch/Tamarack (Larix):
Armillaria Root Disease USFS
Armillaria Root Rot
Christmas Tree Pest Manual (USFS)
Insecticide Suggestions to Manage Landscape Tree and Shrub Insects
Sawflies of Trees and Shrubs

Pine (Pinus):
Armillaria Root Disease USFS
Armillaria Root Rot
Annosus Root Rot in Eastern Conifers (USFS)
Brown-Spot Needle Blight of Pines (USFS)
Caterpillar-Like Sawfly Eat Evergreen Needles
Christmas Tree Pest Manual (USFS)
Comandra Blister Rust (USFS)
Diplodia Blight of Pines (USFS)
HOW to Identify and Control Diplodia Shoot Blight, Collar Rot, and Canker of Conifers (USFS)
Disease Management Recommendations for Trees and Shrubs 
(Brown Spot, Dothistroma Needle Blight, Lophodermium Needlecast, Pine Needle
Rust, Pine-Oak Gall Rust- eastern gall rust, Pine-Pine Gall Rust- western gall rust, Shoot Blight, and White Pine Blister Rust)
Dothistroma Needle Blight
Dothistroma Needle Blight of Pines (USFS)
Eastern Pineshoot Borer (USFS)
European Pine Shoot Moth (USFS)
Insecticide Suggestions to Manage Landscape Tree and Shrub Insects
Introduced Pine Sawfly (USFS)S
HOW to Manage Eastern White Pine to Mininmize Damage from Blister Rust and White Pine Weevil (USFS)
HOW to Manage Jack Pine toReduce Damage From Jack Pine Budworm (USFS)
Pales Weevil (USFS)
Pine Needle Rust
HOW to Identify and Minimize Red Pine Shoot Moth Damage (USFS)
Redheaded Pine Sawfly (USFS)
Rust Diseases on Minnesota Pines
Saratoga Spittlebug (USFS)
Sawflies of Trees and Shrubs
Scale Insects of Trees and Shrubs
Scleroderris Canker of Northern Conifers 
Sirococcus Shoot Blight (USFS)
Sirococcus Tip Blight
Sooty Mold
Sphaeropsis Shoot Blight
HOW to Identify and Control Stem Rusts of Jack Pine (USFS)
White Pine Blister Rust
Wooly Aphids on Trees and Shrubs

Spruce (Picea):
Armillaria Root Disease USFS
Armillaria Root Rot
Yellow-headed Spruce Sawfly
Christmas Tree Pest Manual (USFS)
Cytospora Canker of Spruce
Disease Management Recommendations for Trees and Shrubs 
(Cytospora Canker, Lirula Needle Blight, Rhizosphera Needle Cast)
Eastern Dwarf Mistletoe on Black Spruce (USFS)
Eastern Pineshoot Borer (USFS)
Insecticide Suggestions to Manage Landscape Tree and Shrub Insects
Lirula Needle Cast
Sawflies of Trees and Shrubs
Scale Insects of Trees and Shrubs
Scleroderris Canker of Northern Conifers 
Sirococcus Shoot Blight (USFS)
Spruce Needle Rust
Wooly Aphids on Trees and Shrubs 

                More publications on Diseases
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Revised: 04/02/2008 Liam McClannahan, Stephen Schott, and Dan LaMere at treeinfo@umn.edu.
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