Swiss needle cast
What you will see
Needles turn yellow in patches and brown, looking ‘dirty’ from fungal fruiting bodies; the tree is thin.
How to protect
- Prevention
- Maintain tree vigour.
- By hand late winter – early springCut out infected branches, disinfect tools.
- Chemical — only when nothing else helpsA product authorised in your country against needle browning of Douglas firs (as per the label; only if the other steps are not enough).


















