Wir haben einen Ligustrum Japonicum (japanischer Liguster) unten in unserem Garten, der in den letzten Jahren wirklich schön gewachsen ist. Er ist etwa 5 m hoch und wurde im März zurückgeschnitten, um neues Wachstum zu fördern. was es auch tat.
Mir ist aufgefallen, dass die Blätter, die früher eine schöne leuchtend grüne Farbe hatten (besonders in den letzten Jahren um diese Jahreszeit), sich in eine rotbraune Farbe verfärben, zusammen mit Rissen im Stamm.
Ich frage mich nur, ob jemand dies erlebt hat und/oder ob es Probleme mit diesem Baum gibt.
Ich habe ein paar Bilder angehängt, um Ihnen zu helfen (ignorieren Sie die Dinge unter den roten Linien, da es sich um verschiedene Sträucher handelt).
Danke schön.
Von: ST-212
2 Comments
The two things – foliage and cracking trunk may or may not be connected. In isolation small cracks in a tree’s bark are not unusual – they tend to be caused by the trunk’s growth and they occur most usually/obviously on trees with thin bark – which all the privets have.
It does not look likely, but is the bark in the sun for part of the day? If so, the cracking may very well be related to that and the solution is to shade, wrap or paint the bark.
The third bark possibility is an irregular/no water supply (think about the summer we have had), and then plenty of water. Ligustrums are relatively shallow-rooted, so they will try to shut down in a drought, but will then drink as much as they can when the rain comes. That swells the cambium layer and can split the bark.
Turning to the leaves, discolouration like that usually is a sign of either a nutrient deficiency, or a pest or disease. It can also be scorch (sunburn), which happens more often on new, young, soft growth.
Nutrition is a possibility given the lack of rain all summer, but it will cure itself now if that is the case.
Pests and diseases are generally more obvious if you look at the undersides of the leaves which we cannot see, but I think it less likely as the discolouration only applies to the newer growth.
So, if it were my tree, I would check under the leaves, just in case, but otherwise leave it alone and let it heal itself.
Good luck
Julian
A pleasure. I had a chat with our head nurseryman and I will stick to my story. This is a big Privet. 5 metres tall. It probably needs 10 – 15 litres of water a day just to stand still. So a bucket every few days does not really help and might actually do more harm than good. As in “Oh – here comes the rain, let’s get growing”. “Nope, I was wrong, let’s stop.” “No, its really raining now.” “Sorry, I was wrong”.
So – it really is raining now and you should leave it alone for the winter. In the spring, give it a top dressing of a general-purpose, balanced fertiliser – something like Growmore is fine just in case it is still short of nutrients. If we get another dry summer then maybe water once every 2-3 WEEKS, but give it 5 – 10 watering cans of water each watering. More water, less often is way better than little and often.
Good luck