What pests attack coleus?

Scale insects, Two-spotted spider mite, Whitefly

Coleus pests and diseases: how to recognise them

Q: Which coleus problems need quick action?

Downy Mildew: Badly affected leaves shrivel and turn brown or yellow and fall early; plants become stunted and some may die.

Coleus scutellarioides

The pests, diseases and disorders recorded for coleus in our library, each with a photo and its first symptom. Every page has the full list of symptoms, organic and chemical treatment and prevention.

At a glance

Problems in total	4
Pests	3
Diseases	1
Need quick action	1

How to grow coleus · All pests and diseases

Pests

Scale insectsSome species lay eggs under white, waxy, cotton-like fibres on stems or leaf undersides.Photo: BARAKAT2011, CC BY-SA 3.0, Wikimedia Commons
Two-spotted spider miteFine silk webbing over leaves and shoot tips in heavy attacks.Also called: red spider mitePhoto: Gilles San Martin from Namur, Belgium, CC BY-SA 2.0, Wikimedia Commons
WhiteflySticky honeydew on leaves, stems and fruit, followed by black sooty mould.Photo: gaucho, CC BY-SA 3.0, Wikimedia Commons

Diseases

Downy MildewBadly affected leaves shrivel and turn brown or yellow and fall early; plants become stunted and some may die.Photo: Christian Hummert (Ixitixel), CC BY-SA 3.0, Wikimedia Commons

Which coleus problems need quick action?

These spread or do lasting harm fast; check the plants and start treatment the day you see them.

Downy Mildew: Pale green, yellow, purple or brown blotches on the upper side of leaves, often angular where they are bordered by the veins.

Plants with many of the same problems

Which plants each problem affects: sources

The links between these problems and the plant were checked against these pages.