Gardening 

About Us | Terms of Use | Part of garden.help

Diagnose plant problems and treat garden pests

Gardening News

General Help

Specialists

Have a go...

Win and Save

Interactive Tools

Plant Doctor


More...

Home /Pests & Diseases /

Rose Black spot


Description

It Is caused by a fungus which infects the leaves and greatly reduces plant vigour. Leaf markings can be seen from spring, and throughout the growing season.

Symptoms

Purplish or black patches with a yellow ‘halo’ around them appear on the upper leaf surface, with strands of the fungus sometimes just visible. Small, black, corky wounds may appear on young stems. Badly affected plants can become almost defoliated and the plant gradually loses its vigour. This disease usually spreads from the base of the plant upwards and spores often overwinter on the soil around the plant before being splashed up onto the leaves by rain.

What next...

Now you know what the problem is, and the damage it is doing, don't let your plant suffer.

All Treatments for Rose Black spot

Organic Treatments for Rose Black spot


For specific problems try one of our specialists...

Gardening Projects for September


Learn about How to care for your lawn in Autumn
Learn about  How to protect against birds
How to protect against birds

Difficulty: 1 / 5

Learn about How to make the most of your dahlias
Learn about How to store apples
How to store apples

Difficulty: 1 / 5

Plant Specialists

Diagnose orchid plant problems and improve orchid care

Orchid Doctor

Diagnose fruit plant pests and fruit plant problems

Soft Fruit Doctor

Do a soil test to find out your soil type

Soil Doctor

Diagnose pest and disease problems with fruit trees and bushes.

Top Fruit Doctor


Gardening Tools

Learn which plant pests attack which types of fruit.

Fruit Pests

Learn when and how to prune different types of plants

Pruning Guide

Learn which plants will grow in your soil

Soil pH Guide

Learn when and how to plant different vegetable seeds

Vegetable Planting Guide