Content
- Prevent and fight fungal attack on the apple tree
- Foundations for the spread of fungal diseases
- When planting, ensure good ventilation
- Select or add resistant varieties
- Tips & Tricks
Prevent and fight fungal attack on the apple tree
Even with regular care, it can sometimes come in your garden to a fungal attack on the apple tree. This can be last but not least prevented with a regular care cut, which ensures a light tree crown.
Foundations for the spread of fungal diseases
In order to be able to specifically combat the first infection and spread of fungal diseases, you must understand the prerequisites for infestation. One of the most important fungal diseases in apple trees is the so-called apple scab. This can be recognized by the following characteristics:
The fungus requires heat and moisture at the leaf and fruit surfaces for its propagation. While the temperature is difficult to control, moisture can be controlled.
When planting, ensure good ventilation
Especially in gardens that are bordered by high hedges and shady, not too low apple stem shapes should be planted. Apple trees with a semi-stem or high stem tower above the lee of the hedges and are thus more easily dried by the wind after rainy days. A regular cut in spring and summer is also helpful, as it ensures a light-flooded tree crown.
Select or add resistant varieties
Not every apple tree is affected by diseases like apple scab. In particular, old and resistant varieties often have a surprisingly good resistance to this fungal disease. In conjunction with regular care can be dispensed with the use of chemical sprays usually completely. The most fungus-resistant varieties include:
If you have an old apple tree in your garden, then you can also cut it back strongly and refine branches of one of these resistant varieties to the old surface.
Tips & Tricks
All measures that promote the vitality of the apple tree, also provide some protection against fungal attack. Usually a first infection with fungal diseases is not only due to dense treetops and too high a degree of moisture, but also by poorly fertilized and not regularly cut trees ,