Black spot is an ugly and plant threatening, fungal disease causing problems with Roses.
Avoid Black Spot
- Keep the ground clear of any diseased leaves or plant matter.
- Burn affected leaves, do not compost as this just recycles the spores.
- Use clean tools or dip them in fungicide particularly those that contact the sap like secateurs or loppers.
- Buy disease resistant varieties of rose.
- Allow air to circulate. Black spot likes humid conditions so water carefully.
- Beware black spot can be transmitted from plant to plant. Good hygiene is vital.
Treating Black Spot
- Remove and destroy infected material.
- Spray with a systemic fungicide on both sides of the leaves and the stems of affected plants. Fungus Clear
- Sulphur treatments may be effective and are acceptable organic alternatives to chemicals.
- Keep plants stress free by watering then giving a good mulch.
- Water the roots not the whole plant.
Infected leaves turn yellow and die. Stems and branches that are infected no longer bear leaves or blossom.
Similar Posts:
- Quick Tips on Blackcurrants
- Rose Pruning Tips for Healthy Roses
- Growing Pulmonaria (Lungworts)
- Over Feeding House & Garden Plants
- Control Cabbage Worms
Add A Comment