Roses are a real decoration of every garden. But, regardless of the variety, these beautiful flowers often suffer from diseases, especially susceptible to fungal infections, such as black spot (marsonia) . It manifests itself in dark spots on the leaves, and over time leads to complete shedding of leaves and reduced flowering.
Fertilizers and fungicides sold in stores don’t always give the desired effect. However, there is a simple and budget-friendly solution that really works – a combination of salicylic acid and ammonia .
🧪 Why are these two remedies so effective?
- Salicylic acid (2%) is a well-known natural immune stimulant. It “awakens” the plant’s defenses, making it more resistant to fungi and infections.
- Ammonia (methanol) – helps the acid dissolve better in water and makes nutrients available for absorption by the leaves.
When combined, these substances create an effective protective solution that stops the spread of fungal spores and stimulates the growth and flowering of roses.
📌 How to prepare a solution for spraying roses?
Ingredients for 10 liters of water:
- Salicylic acid 2% — 100 ml
- Ammonia (rubbing alcohol) — 40–50 ml
- Warm water – for dissolving
- Sprayer – for application to leaves
Instruction:
- Dissolve salicylic acid and ammonia in a small amount of warm water (about 0.5 l).
- Pour the mixture into a bucket of water (10 l) and mix thoroughly.
- Pour the solution into a sprayer and apply evenly to the rose leaves, including the underside.
Tip: It is best to treat plants in the evening or on a cloudy day to avoid sunburn.
🔁 How often to process?
To prevent and combat an existing disease, treatment should be carried out weekly . This will stop the spread of Marsonia and help the roses bloom again lushly and brightly.
🌱 Additional benefits
- The solution is suitable not only for roses, but also for fruit trees, shrubs, vegetables (tomatoes, cucumbers, peppers) .
- The product is environmentally safe and does not harm bees or the environment.
- It is affordable – you can find it at any pharmacy.
📌 Conclusion
Black spot will no longer destroy the beauty of your roses! Thanks to a simple but effective recipe of two pharmacy preparations, your favorite flowers will be healthy, lushly blooming and resistant to diseases. Do not forget about regularity and care, and your flower garden will shine like on a postcard.