Viburnum Covered With Rust Colored Marks

Question From: Klerksdorp, North West, South Africa
Q: My vibernum is covered in rust coloured marks. What is happening and how do I treat it. Thank you

A: The shrub has a fungal disease called Rust. Go to and enter Preventing Fungal Diseases Next Year. Follow these tips. Spraying the shrub with a fungicide will also help fight and prevent rust. Go your local garden center to find the right product and the right timing for your location. Best And Happy Yardening, Nancy