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Diseases of indoor plants:symptoms and natural remedies to solve the typical problems (deficiencies, diseases, parasites ...) that affect indoor plants.
Theindoor plantsare protected by the domestic environment, therefore, rather than talking about insects, parasites or infestations of various kinds, we should talk about diseases induced by deficiencies or poor soil management.
Diseases of indoor plants
When we buy one indoor plant, the first thing to do is repotting. We do not know the trader for how long he kept the plant in that container, nor how it wascurated. When repotting, add soft, fertile and well-draining soil to the container. Generally the diseases of indoor plants are dictated by cultivation errors and forgetting the first repotting can be fatal! Here are the mistakes to avoid to protect houseplants from disease:
- - Do not give too much water to the soil. Avoid stagnation in the saucer.
- - Beware of lack of light which, together with reduced ventilation can increase the chances of contracting fungal diseases.
- - Do not administer excessive amounts of nitrogen-rich fertilizers: an excess of nitrogen makes the green plantsparticularly sensitive to pathogens.
- - Do not forget to administer phosphorus and potassium, these elements make the plant more resistant to parasitic attacks.
- - If you have a sick plant, quarantine it.
- - Remember to carry out containment pruning to ventilate the plants that are too dense.
- - Pay attention to the irrigation water! If you use tap water, remember to keep it in a basin exposed to the air for at least 48 hours before administering it to the plants. Tap water, in general, has an excessive hardness and the amount of limestone contained in it alkalizes the soil making it unsuitable for most indoor plants.
Yellow leaves on basil or houseplants
If you notice that the leaves of your houseplant are turning yellow, check that you are not giving an excess of water. Avoid administering tap water as a too high pH could cause the leaves to turn yellow. If you have recently repotted, check that you have covered the collar area well or that there are no roots on the surface affected by the sun's rays. Root rot can also cause yellowing of the leaves.
Among the most common diseases that can affect indoor plants we have deficiencies, in particular iron deficiency. Ferric chlorosis manifests itself with yellowing of the leaf tissue between the veins of the leaves that remain green.
If you don't act quickly, the new leaves will sprout a pale yellow or white color. In severe cases, flowering stops and the plant dies.
The treatment consists in administering products rich in iron (in powder or liquid) and reducing irrigations.
On the lower pages of the leaves you will notice small pustules in relief, translucent and hardened. Such formations are more common near the plant ribs. To take care of the plant, reduce watering, remove the most affected leaves and if possible move the plant to a sunny and damp place. Fertilizing will do no good.
Indoor plant parasites
The domestic habitat does not favor the spread of parasitic attacks or insects, however there may be some parasites of animal origin that can reach the plants on the balcony and transfer, in some way, even on indoor plants. Generally, the most common pests are aphids, spider mites, whiteflies and scale insects. To learn about the symptoms and remedies for eliminating houseplants parasites, we refer you to the article dedicated to plant diseases and parasites reported at the end of the next paragraph.
Diseases of indoor plants
Indoor plants can be affected by rust, root and collar rot induced by fungi, white sore, gray mold, leaf spots ... To eliminate the diseases induced by the most common microorganisms, which can also attack indoor plants, we invite you to read the page:Plant diseases and pests.