Sirococcus tsugae : Observatree guides

Sirococcus tsugae is a fungal pathogen that causes shoot blight and cankers on cedar trees (Cedrus spp.), and shoot blight on hemlock (Tsuga spp.). Sirococcus tsugae can attack seedlings and saplings as well as mature trees. This pathogen has the potential to cause considerable damage to valuable ornamental trees in public and private gardens and economic losses for the forestry and nursery sectors in the UK.