Why do dracaena dry leaves and what to do with it
When growing dracaena at home, plant breeders often face the problem of leaf fall. This may be a natural process of renewing greenery or the result of improper care. Consider the main mistakes of flower growers, their consequences and ways to resolve problems.
Why do dracaena dry leaves: reasons
The main factors provoking shedding of foliage in dracaena:
- renewal of greenery;
- microclimate violation;
- excess or deficiency of moisture and fertilizers;
- wrong place for growing;
- defeat by diseases and pests.
Did you know? From the juice of cinnabar dracaena, a resin is obtained, which was formerly called " dragon blood " . It is used in the chemical industry for the production of paints and varnishes.
On average, the dracaena leaf plate has been living and developing for 2 years. When the greens are renewed, the tips of the lower leaves turn yellow and dry. If the leaves themselves do not fall, carefully detach them from the main stem. With improper care, yellowing begins with the crown of the plant. In this case, the most important thing is to quickly find the cause and eliminate it.
When growing dracaena, one should take into account the fact that this plant is tropical, and the indoor microclimate should be as close to natural as possible.
Did you know? Dracaena positively affects the energy of the house and the morale of its inhabitants. It helps calm inner anxiety, relieve nervous tension. In esoteric circles, it is considered a symbol of power and prestige.
The main factors that negatively affect the development of greenery:
- decrease in air humidity up to 50-60%;
- temperature conditions below +18 ℃;
- temperature conditions above +27 ℃.
Incorrect fertilizer and watering
An excess or lack of nutrients adversely affects the development of plants. The leafy part can develop poorly and fade due to a lack of nitrogen. With its lack, the leaves change shape, acquire a lighter shade and fall off. An excess of this element in combination with abundant watering leads to an increase in soil pH and rotting of the root system.
Often the cause of yellowing is the incorrect conduct of water procedures. Dracaena needs to shower periodically or spray her with plenty of water. But after that, you should definitely drain the sinuses of the leaf plates. The accumulation of water in the sinuses leads to decay, so the foliage turns yellow and dies. A lack of moisture leads to a weakening of the root system, which is externally manifested by shedding of greenery.
Find out what and how to feed indoor plants at home.
Wrong place to grow
A tropical plant prefers plentiful diffused lighting. Prolonged exposure to direct sunlight leads to burns on the leaves. Dracaenes are poorly developed on the southern window sills and next to heaters that dry the air.
Pests and diseases
Even following all the rules of care, it is quite difficult to protect yourself from attack by pests and the spread of fungal diseases. Spores of the fungus and insect larvae can be transmitted from a diseased plant to a healthy one or spread during transplantation if the soil mixture has not been properly processed.
Important! When you remove the upper part of the stem, the plant quickly loses moisture. So that the trunk does not dry out, but quickly gives new sprouts, wrap the cut with polyethylene, and spray the trunk with water 2-3 times a day.
Among fungal diseases, dracaena most often develops:
- brown spotting or alternariosis;
- leaf spotting;
- dry spotting.
Of the pests on the leaves of dracaena during home cultivation can settle:
- scale shield;
- spider mite.
The main symptom of alternariosis is oval light brown spots located throughout the surface of the leaf. In the central part of the spots are clearly defined circles of a darker color. After some time, the leaves become covered with a dark coating, consisting of fungal spores, which impedes the normal process of photosynthesis.
When there is an excess of moisture, irregular-shaped spots of a darker shade appear on the leaves than a sheet plate. Sometimes in the central part, fluid can be noted. The disease develops with an excess of moisture.
The disease affects the leaf plates on both sides. The drying process begins with the apical leaves. First, yellow spots appear, which eventually acquire a darker shade and, drying out, form holes.
What to do and how to treat the plant
When the first symptoms appear, indicating deficiencies in care or a disease, all yellow and dried sheets are removed. Check the condition of the soil, regulate air humidity and temperature.
Read more about when you need to transplant indoor plants.
In order to cure plants, in each case, drugs of various actions are used:
- fungicides - with fungal diseases;
- insecticides - with the spread of pests;
- acaricides - for treatment from spider mites (do not act on other pests);
- insectoacaricides - for the treatment of all pests, including spider mites.
With an excess of moisture and fungal diseases, after removing the damaged leaves, the plants need to be transplanted with a complete replacement of the earthen coma. After extracting the plants from the pot, the roots are washed, damaged ones are removed. While the root system dries out a bit, you need to sanitize the universal soil for dracaena in the oven and treat it with two fungicidal agents.
There will be three of them:
- 7-10 days after transplantation - with a solution of Fundazole.
- 5 days after the first - with the Skor solution.
- After another 5 days - a combined solution of the two above drugs.
Important! The drug "Admiral" is incompatible with products containing alkali and malathion.
After the treatment, it is necessary to adjust the care regime and feed the plants with nitrogen.
The main preventive measure to prevent leaf fall is proper care, which involves the following rules:
- humidity in the room should be maintained within 80%, at lower rates, increase the frequency of spraying of the leafy part and install a bowl of water next to the plant;
- organization of diffused lighting;
- air temperature at the level of + 20–25 ℃;
- regular removal of dying lower leaves;
- watering only after drying of the top soil layer 1 cm deep;
- fertilizer containing nitrogen and calcium 3 times a season;
- treatment with insecticides when transplanting plants into large containers;
- preventive treatment with fungicides in late summer.