Why are my viburnum leaves covered in white spots?
Our Advice
White spots on viburnum leaves can be a sign of powdery mildew, which is a fungal disease. This disease is most common in warm, humid weather and can be prevented by ensuring good air circulation around the plant. Other possible causes of white spots on viburnum leaves include scale insects or mealybugs, which can be treated with insecticidal soap or neem oil.
Ask Another Gardening Question
Not what you were looking for? If you can't find an answer on the website, you can contact our experts directly and we'll do our best to help.
Learn More About Pests & Diseases
Angle shades moth
Anthracnose
Box blight
Box tree caterpillar
Canker — Bacterial
Canker — Bleeding
Canker — Fungal
Capsids
Centipedes
Chafer grubs
Coral spot
Cutworms
Earthworms
Earwigs
Eelworms (leaf & stem)
Eelworms (soil-borne)
Froghopper
Fuchsia gall mite
Garden Ants
Grey mould
Honey fungus
Leaf cutter bees
Leaf Rolling Caterpillars
Leaf spots — Fungal
Leatherjacket
Lily beetle
Mealy bugs
Mildew — Downy
Mildew — Powdery
Millipedes
Pear midge
Phytophthora root rot
Rose Black spot
Rusts
Sawfly — Berberis
Sawfly — Gooseberry
Scale insects
Sciarid flies
Slugs
Snails
Sooty moulds
Thrips
Vine weevil
Whitefly
Wireworms
Woodlice
Woolly aphid