An overview of possible causes
- Nutritional deficiency
- too much Epsom salt
- compacted soil
- Soil wetness / drought
- Road salt
- Pests
Nutritional deficiency
A Nordmann fir is not a big consumer of nutrients, which is why its owner usually does not fertilize got to. However, if the soil is depleted, your magnesium may be lacking. A commercially available fertilizer makes the tree grow, but does not remove the brown color. In acute cases, Epsom salt is helpful, otherwise a special pine fertilizer provides all the necessary elements.
also read
- Nordmann fir - your special fertilization requirements
- Nordmann fir - possible growth per year
- Nordmann fir - how to plant it correctly
Too much Epsom salt
Epsom salt is a tried and tested remedy for brown needles, which is why it is often used as the only fertilizer. But an overdose can also lead to brown needles. The reason for this is that a high amount of magnesium disrupts the absorption of potassium, which is also an existential element.
Compacted soil
The Nordmann fir needs a network of fine roots for its supply of water and nutrients. These can form only with difficulty in compacted earth and also insufficiently fulfill their task.
Soil wetness / drought
A damp soil without waterlogging is ideal. Both extremes, wet and dry, on the other hand, harmful. The soil for the Nordmann fir should therefore be sandy rather than loamy. Possibly. the permeability of the soil must be improved before planting. The fir is threatened by drought both in summer and in winter, because it is known to be an evergreen conifer.
Road salt
Also a wastefully used road salt, which is caused by rainwater or Meltwater the roots the fir tree can stain the needles brown.
Pests
lice like the pine woolly louse or the sitka spruce louse, their actions also cause brown-colored needles. This is precisely why it is important to conduct a thorough research into the cause of brown needles in order to identify them Pests to discover and fight in time.
