Willow
Description
Insects and mites
Insects that cause damage to this tree.
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Birch and alder flea weevil
Scientific name: Rhynchaenus testaceus (Mull)
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Pale winged grey
Scientific name: Iridopsis ephyraria (Wlk.)
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Poplar-and-willow borer
Scientific name: Cryptorhynchus lapathi (Linnaeus).
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Willow flea weevil
Scientific name: Isochnus rufipes (LeConte)
Foliage or buds
Bruce spanworm complex
Scientific names:
- Operophtera bruceata (Hulst)
- Operophtera danbyi (Hulst)
- Operophtera occidentalis (Hulst)
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Asian longhorned beetle
Scientific name: Anoplophora glabripennis (Motschulsky)
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Bruce spanworm complex
Scientific names:
- Operophtera bruceata (Hulst)
- Operophtera danbyi (Hulst)
- Operophtera occidentalis (Hulst)
- Eulithis destinata (Moesch)
- Eupithecia subfuscata (Haworth)
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Fall webworm
Scientific name: Hyphantria cunea (Drury)
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Large aspen tortrix
Scientific name: Choristoneura conflictana (Walker)
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Mourningcloak butterfly or spiny elm caterpillar
Scientific name: Nymphalis antiopa (Linnaeus)
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Northern tent caterpillar
Scientific name: Malacosoma californicum pluviale (Dyar)
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Pero moth
Scientific name: Pero morrisonaria (Hy. Edwards)
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Poplar-and-willow borer
Scientific name: Cryptorhynchus lapathi (Linnaeus).
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Rusty tussock moth
Scientific name: Orgyia antiqua (L.)
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Saddleback looper
Scientific name: Ectropis crepuscularia (Denis and Schiffermuller)
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Speckled green fruitworm
Scientific name: Orthosia hibisci (Guenée)
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Spongy moth
Scientific name: Lymantria dispar (Linnaeus)
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White slaut
Scientific name: Tetracis cachexiata (Guenée)
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Whitelined looper
Scientific name: Epirrita pulchraria (Taylor)
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Whitetriangle leafroller
Scientific name: Clepsis persicana (Fitch)
Roots, bark, stem or trunk, or branches
Diseases caused by pathogens
Diseases caused by pathogens that cause damage to this tree.
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Fir-willow rust
Pathogen name: Melampsora abietis-capraearum Tub.
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Nectria dieback
Pathogen name: Nectria cinnabarina (Tode:Fr.) Fr.
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Ribes-willow rust
Pathogen name: Melampsora ribesii-purpureae
Foliage or buds
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Hemlock-willow rust
Pathogen name: Melampsora epitea Thuem.
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Tar spot (Rhytisma salicinum )
Pathogen name: Rhytisma salicinum (Pers.:Fr.) Fr.
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Willow scab
Pathogen name: Venturia saliciperda (Nüesch)

