If a citrus tree changes its appearance ugly, it is no longer so decorative. Not to mention that the plant is obviously not doing well. But where pathogens are hastily suspected, it can only be a matter of care mistakes. That should be checked as soon as possible.

Spots on the leaves often indicate a disease infestation

Deficiency symptoms with incorrect fertilization

All types of citrus need specific care so that they grow healthily. In particular, it must be fertilized regularly with an optimally balanced combination of nutrients. Due to ignorance or lack of time, this point of care is often not satisfactorily fulfilled. Subsequent changes in appearance are thought to be symptoms of a disease.

  • Leaves with yellow veins are a sign of iron deficiency (chlorosis)
  • the pH of the soil can also be too high (5.5-6.5 is ideal)
  • with a lack of magnesium, only the tips of the leaves are yellowed
  • sagging young leaves appear in zinc deficiency

Wet and dry damage

No citrus plant should stand wet, lest its delicate roots rot. It shouldn't dry out either. Therefore, soil must be permeable for citrus plants and at the same time be able to store water. It is watered as needed and only when the top third of the soil is dry. It is advisable to spray the plant with water on warm days.

If yellow leaves appear on the citrus plant or if they curl up, you should check the watering and correct it if necessary.

tips

Use a moisture meter on your citrus plants so you don't accidentally overwater or dry out the plants.

Hibernation error

Citrus plants need to be overwintered, but finding suitable winter quarters is not always easy. Under no circumstances should the pot be too cold, otherwise the roots will be damaged. Leaves turn yellow and fall. Place the pot on insulating styrofoam or coconut mat.

infectious diseases

Of course, there are also some “real” diseases that can afflict a citrus plant. First and foremost, these are diseases caused by fungal pathogens, which primarily spread to weakened plants. While sooty mold appears with a black coating, the frequently occurring anthracnose can be recognized by the following symptoms.

  • Leaves show brown, round spots
  • often accompanied by semicircular, dark spore clusters
  • later the leaves fall off
  • the plant must be treated with a fungicide

Category:

Vegetable garden