My anthurium leaves are red, what should I do

Anthurium erythema (also known as brown spot disease).

Control methods: appropriate shading at high temperatures, enhance plant growth, increase organic fertilizer, and improve disease resistance.

Adhere to the principle of prevention first, spray 600 to 800 times of Dasheng wettable powder of protective fungicide 80, or 600 to 800 times of chlorothalonil wettable powder of 75.

At the initial stage of the disease, 2500 times of Lecroca wettable powder with systemic fungicide can be sprayed, or 1500 to 2000 times of dichloride demulsified concentrate of 25.

Remove the sick and burn the body. Erythema: small rusty red spots are produced on the leaves in the early stage, mostly on the edge of the top leaf or at the tip of the leaf, and the lesions gradually expand into nearly circular or irregular rusty red spots, and the junction between the disease and the health is obvious and dark brown.

In the later stage, small black dots appear in the diseased part, the affected leaf is brittle and easy to crack, and finally the lesion extends to most or the whole of the leaf, resulting in early shedding. The peak incidence period is from late June to August.

Prevention and control methods: cut off the diseased leaves and burn them.

At the beginning of the disease, spray 1000 times of 70 methyl tobuzin wettable powder, or 12 5 of Lectra wettable powder 2500 times, or 25 dichloride demulsification concentrate 1500 times to 2000 times.

The yellowing and scorching of anthurium leaves is mainly due to these two reasons.

We maintain it indoors, there is often the phenomenon of water accumulation in the potting soil, after the accumulation of water, the plant will rot the roots, and the nutrients will not reach the leaf part after the root rots, and the leaf yellowing will occur, at this time we can take the plant off the pot, look at the growth state of the roots, if there are not many rotten places, you can cut off the rotten part slightly, put it in a ventilated and cool place and wait for the pot soil to dry in the water; If the rotten part of the roots is more serious, the roots of the plant should be re-pruned in time, disinfected after changing the soil, and then replanted, waiting for the plant to recover on its own.

Anthurium plants can not stand the burning under the refraction of sunlight for a long time, and will produce yellow spots, so the plants should be semi-shaded in time, or taken into a bright place indoors, and only need to give appropriate scattered light.

Observe the growth environment of your own anthurium, if it is in a dark corner, it is because there is no light to produce yellow leaves, to replenish the light in time, you can take it to the window or balcony.

Apply raw fertilizer or the amount of fertilizer is too large and too concentrated, it is necessary to dilute it with water in time, and discharge the excess fertilizer through irrigation, if it cannot be discharged, it is necessary to change the soil and replant.

Anthurium fertilizer deficiency will also cause yellow leaves, to add rotted liquid fertilizer or replace nutrient soil as soon as possible, usually pay attention to thin fertilizer when maintaining, do not be too thick.

If the plant is left in a place with little light or shade for a long time, it will stunt and its leaves will turn yellow, and it will not bloom and no new leaves will grow. At this time, we need to put it in a sunny place, such as a balcony or yard. But if the sun is too strong in summer, it is still necessary to do some shade treatment.

Improper temperature is likely to cause its leaves to turn yellow, especially in winter, because if the temperature is too low, the leaves will turn yellow, but if the temperature in the house is too high in winter, the evaporation of water will be faster, and the lack of water in the roots will also cause its leaves to turn yellow. Therefore, we must ensure that the indoor temperature in winter is in a relatively stable state, not too high and not too low.

Improper watering or fertiliser can cause it to turn yellow. If the water is not properly watered, it is necessary to water properly, pay attention to the water can not be too much, not too often, and there can be no stagnant water in the pot, otherwise it is likely to cause it to yellow leaves due to rotten roots. If too much or too little fertilizer is applied, its leaves will also turn yellow.

If you fertilize too much, don't fertilize anymore and water the pot; If there is too little fertilization, it is necessary to fertilize in the right amount, and the right amount of trace elements can be added to the fertilizer.

Anthurium is a plant with very high ornamental value, but improper cultivation of anthurium will cause yellowing of leaves, thenWhat to do if the anthurium leaves are yellow？Below we will analyze the common causes and solutions of yellowing of anthurium leaves, hoping to help you.

What to do if the anthurium leaves are yellow

Causes of yellowing of anthurium leaves 1, metabolism.

If you find that the leaves of the anthurium are yellow, you should pay attention to the condition of other leaves, if the leaves are bright yellow-green, and the flowers are growing well, it means that new leaves are growing, and it is normal for old leaves to turn yellow and fall.

Reasons for yellowing of anthurium leaves 2. Soil discomfort.

In most areas of the north, the medium and water contain more salt and alkali, and due to the lack of soluble iron that the plant needs to absorb, the leaves will gradually lose green and turn yellow. Solution: Use oxalic acid and other treatment media and watering water.

3. Causes of yellowing of anthurium leaves: Excessive watering.

The new leaves of Anthurium are yellow, and the old leaves are normal, which is generally due to excessive watering and too frequent watering, which will cause the medium in the pot to be too wet for a long time, and even accumulate water, resulting in the rot of some fibrous roots, hindering normal respiration and absorption of nutrients, causing the leaves to gradually turn yellow and fall off. Solution: Water normally.

4. Causes of yellowing of anthurium leaves: Dry air.

In winter, when the indoor air is too dry, the leaf tips are often dry and yellow, or the leaf edges are scorched, or the leaves are scorched and the edges are curled. Solution: According to the growth characteristics of anthurium, increase the air humidity appropriately.

5. Causes of yellowing of anthurium leaves, excessive shading.

If the anthurium is left in a shaded place or in a place with insufficient light for a long time, it will cause weak growth, thin and yellow leaves, and no or very little flowering. Solution: According to the growth characteristics of anthurium, increase the light intensity appropriately.

6. The reason for the yellowing of anthurium leaves is that the temperature is not suitable.

In winter, if the indoor temperature is too low, the leaves will turn yellow; If the room temperature is too high, the plant will be overtranspiration, and the root water and nutrients will be insufficient, which will also make the leaves yellow. Solution: Keep the temperature in the greenhouse relatively stable.

7. Causes of yellowing of anthurium leaves, uneven fertilization.

Lack of fertilization, or not changing pots and soil for a long time, the lack of nutrients such as nitrogen in the soil leads to thin branches and leaves, thin and yellow leaves. In addition, excessive fertilization will also cause new leaves to be hypertrophied and uneven, and at the same time, the old leaves will be dry and sharp, and burnt yellow will fall off. Workaround:

Fertilization should be stopped immediately, watering should be increased, and part of the old soil should be removed and replaced with new culture soil for normal management.

The above is what to do if the anthurium leaves are yellow? The full list of common causes and solutions.