Contents
Hydrangea diseases and their treatment
Hydrangea diseases occur due to a frivolous approach to the choice of planting material, improper care or infection. The plant is not too susceptible to different misfortunes, but some diseases are worth paying attention to.
Treatment of hydrangeas for ailments associated with improper care
Many problems with the plant can be avoided if you adhere to the rules of care. However, some little things turn out to be unaccounted for, and the plant loses its visual appeal.
Fungal diseases of hydrangea damage the leaves, stems and roots of the plant
Defects on hydrangeas can appear due to sunburn, improper watering or lack of nutrients in the soil:
- Dry leaves falling to the ground indicate a lack of moisture or fertilizer. Hydrangea should be watered and sprayed regularly. Fertilizers are supposed to be applied once a week.
- Blackening of the leaves around the edges indicates hard water or sunburn.
- Wet, dark leaves indicate blooming, drafts, and heavy soil.
- Another common problem is chlorosis or iron deficiency. In this case, hydrangea leaves brighten or turn yellow, leaving dark streaks. Buds, leaves and shoots wither. It is necessary to feed the plant with “Antichlorosis” or “Ferovit”.
The plant also suffers from the low acidity of the soil. This can be determined by the brightness of the colors. If they gravitate towards neutral shades, the soil lacks acid. You can help the flower by adding 2 drops of lemon juice per 1 liter of water when watering.
Treatment of fungal diseases of hydrangea
Hydrangea can be affected by various fungal diseases. The main fight against them is the removal of damaged parts and the use of fungicides – drugs against fungus on plants. The flower can be hit by:
- White rot. Infection comes from the roots, later the shoots darken, a cotton-like bloom appears, on which black dots of the mushroom mycelium grow. You can destroy the fungus with Fitosporin.
- Gray mold changes the structure of the plant. It becomes soft and covered with gray fluff, and when it dries, the damaged parts die off. Means of struggle – “Pure color” or “Speed”.
- Septoria. Brown spots appear on the leaves, reaching up to 5 mm in diameter. It is necessary to remove all infected parts and treat the hydrangea with copper sulfate.
- Powdery mildew. Yellow-green spots appear on the leaves, later they acquire a brown color and noticeable outlines. From the inside, the sheet is covered with a gray bloom. You can cure it with Fitosporin or the stronger Topaz.
- Rust. It can be recognized by a red bloom on all parts of the hydrangea. “Topaz” will help to cope with this disease.
In addition to fungal diseases, hydrangea is also susceptible to viral ones. Ring spot gives pronounced brown rings on the leaves. It is transmitted through planting material and is incurable.
Hydrangea diseases can be avoided with a responsible approach to the choice of planting material and the conditions of its maintenance. And it is also worth keeping antifungal drugs in your phyto-pharmacy.