Content
- Boxwood gets brown spots - What to do?
- Causes of brown spots on leaves and shoots
- Sunny location
- pest infestation
- fungal diseases
- What to do in case of an acute fungal disease?
- Tips
Brown spots can have different causes
Boxwood gets brown spots - What to do?
Buchs can be found in almost every garden thanks to its versatility. However, it is also a rather sensitive plant that reacts to non-optimal environmental conditions as quickly as a fungal or pest infestation. Brown spots on the leaves and shoots occur quite frequently and have very different causes.
Causes of brown spots on leaves and shoots
Discover such spots, you do not immediately think of the dreaded boxwood dying. There are many other causes that are far less threatening. Cold, for example, causes yellow leaves, as it tries to protect the plant from freezing temperatures. She will turn green by herself in this case. Other causes are listed in the following overview.
Sunny location
If your book is in the blazing sun, the leaf spots indicate a simple sunburn. Incidentally, these specimens are particularly threatened by dehydration and nutrient deficiency, which is always a consequence of the lack of water. Move the plagued boxwood to a more suitable location and ensure adequate - not excessive! - Supply of water and nutrients.
pest infestation
In addition, some pests first cause leaf spots, even before they appear clearly themselves. If, for example, spider mites have settled, this is first shown by a yellowish mottling of the leaves. Only later do they turn brown and fall off. The Gallmücken frequently found on box trees cause similar damage pictures. Here, however, form on the underside of the leaf, the typical gall bubbles.
fungal diseases
Not least, of course, some fungal diseases cause the leaf spots. For example, the dreaded boxwood dying in its early stages shows its characteristic orange to brown spots on the leaves. Soon after, they fall off and die of instinct begins. On the other hand, if reddish-brown, bumpy spots appear, this is the box tree rust. Typical here are the white mushroom turfs on the underside of the leaves.
What to do in case of an acute fungal disease?
In an acute fungal disease, you should act as soon as possible to limit the damage. Definitely these measures include:
Tips
Incidentally, once the boxwood instinct has occurred at a location, no box trees should be planted here for several years. The fungal spores survive for a very long time in the soil, so that only a soil replacement can help.