When the leaves of the lilac curl in large numbers, it is always a warning sign. You can find out in this guide why the foliage of the ornamental shrub curls and whether curling disease could be responsible for this.
Can lilacs get curl disease?
Thecurling disease,caused by a fungus with the Latin name Taprina deformans,does not affect eitherthenoble orthecommon lilac. It occurs exclusively on fruit trees such as peaches and plums, but also on almond trees.
Why do the leaves of lilacs curl?
By curling the leaves, the lilac indicates that it is lackingnutrientsor something is wrong with thelocation:
- Add nutrients as an immediate measure. The administration of rose fertilizer has proven successful.
- If the roots cannot develop, the leaves curl. Loosen compacted substrate.
- Acute lack of water also causes the leaves to curl. Water the ornamental shrub.
- Shadow can also be a cause. In this case, move the lilac or thin out the neighboring plants.
How do I recognize frizz disease?
Theleavesof the affected trees show fleshy,red-brown pustules on the upper side of the leaves,androll up. Little by little the leaves die and are thrown off the tree. Curling disease is caused by a fungus and occurs as early as spring.
Since this disease only affects fruit trees, especially
- Peach
- Nectarine
- Apricot
- Plum
- Almond
You don't have to worry that the disease will spread from the fruit trees to the lilacs.
Tip
Fertilize lilacs sufficiently
The formation of flowers requires a lot of energy for lilacs, which is why this ornamental shrub has a very high nutrient requirement. Fertilize the bushes in spring with compost or an organic fertilizer. A second fertilizer application takes place immediately after flowering, when you have cut back everything that has bloomed.
