Taiwan Douglas-fir
Pseudotsuga wilsoniana
Pinaceae · conifer · introduced
Quick Facts
Height
65–80 ft
Light
Full Sun
Hardiness
Zone Zones 7a–8b
Origin
China and Taiwan
Diseases (14)
Leptographium wageneri Black-Stain Root Disease
Botrytis cinerea Gray Mold
Lower Stem Canker
Rhabdocline spp Needle Cast, Rhabdocline
Nothophaeocryptopus gaeumannii Needle Cast, Swiss
Thekopsora minima and Naohidemyces vaccinii Rust
Botryosphaeria corticis Stem Canker
Phoma spp. Upper and Lower Stem Canker (Phoma Blight)
Yellow-green Mottle Syndrome
Upper stem canker
Rhabdocline needle cast
Swiss needle cast
Coniferiporia sulphurascens Laminated Root Rot
Armillaria ostoyae Armillaria Root Rot
Pests (12)
Cinara occidentalis, Cinara abietis Aphid
Brown soft scale
Coneworm
Adelges cooleyi Cooley spruce gall adelgid
Douglas-fir needle midge
Orgyia pseudotsugata Douglas-fir tussock moth
Douglas-fir twig weevil
Chionaspis pinifoliae Pine needle scale
Pitch moth
Silverspotted tiger moth
Oligonychus ununguis Spruce spider mite
Sequoia pitch moth