Anthurium diseasescan destroy the effort put into the care of this plant. When anthurium is sick, we can observe that its leaves dry, turn yellow orthere are spots on the anthurium leavesOften the growth of the whole plant is impaired and the anthurium does not bloom. Such problems may result from errors in the care of the plant, be a sign of an infection byanthurium diseasewith a fungal or bacterial background, or a pest attack. See how to recognizesymptoms of anthurium diseaseand how to help an ailing plant.
Anthurium diseases - yellowing leaves
Non-infectious anthurium diseases
Very oftenanthurium diseases result from improper care of the plantand to help it, it is enough to provide better growing conditions. First of all, remember thatanthurium leaves are easily sunburned , so let's make sure that the plant stands in a place that is not too much sun. The position should be bright but diffused.
The water we water the plant is also important. It should be water that has been left standing for at least one day for the chlorine to evaporate and the temperature to reach the ambient temperature. When using lime, chlorinated and cold water straight from the tap , brown spots appear on the edges of the anthurium leavesspoiling the decorative value of the plant.
Anthurium also does not like drafts and large temperature fluctuations, which can be a problem mainly in winter when the window is opened.As a result of sudden changes in temperature with a simultaneous lack of sunlight and excessive watering , dark, irregular spots appear on anthurium flowersTo prevent this, in the winter time, we limit watering and do not open the window near the plants. Sometimes it is also worth switching the anthurium to a brighter place.
Another non-infectious disease of anthurium is browning of the edges of the leaves, resulting from excessive nitrogen fertilization with a simultaneous potassium deficiency. In this case, it can be observed thatedges and tips of anthurium leaves turn yellow and then dry upIt will help to reduce fertilization and change the fertilizer to a fertilizer with microelements, low in nitrogen and rich in potassium. Fertilizers for flowering plants usually have such features.
Yellow anthurium leavesmay also mean that the plant is too cool and humid or too dry.
Infectious diseases of anthurium
Anthurium symptomsmay also result from pathogen infection, e.g.harmful fungus. The most common fungal disease isgray anthurium moldAs a result of infection with gray mold, the petioles turn brown at the base and then the entire leaves. You can also see small dark spots on the anthurium flowers, which grow in size and blacken over time. Dusty, gray mycelium coating may also appear on infected parts of the plant.
Fighting this anthurium diseaseis spraying the plant 2-3 times at intervals of 7-10 days with fungicides such as Topsin M 500 SC or Teldor 500 SC. These agents must not be used in apartments, so the plant must be moved somewhere while spraying. If this is not possible, try to cure the plant in the apartment using the Biosept 33 SL biopreparation.
Ifappears greyish or brown, roundish spots on the anthurium leaves and flowers , it may be an anthracnose infection. Typically, dark clusters of fungal spores are visible on the surface of the spots.In order to stop the development of the disease, stop spraying anthurium leaves with water and, at intervals of 10-14 days, apply a few sprayings with Topsin M 500 SC, Gwarant 500 SC, Domark 100 EC or Biosept 33 SL biopreparation.
Ifanthurium leaves turn yellow, brown and die , and at the same time we observe browning of the stem base and plant root dieback, it will most likely be anthurium phytophthora. Heavily diseased plants should be discarded and all growing nearby should be watered and sprayed with Gwarant 500 SC, Discus 500 WG fungicides, Polywersum WP biological agent or Biosept 33 SL and Bioczos BR biopreparations.
In addition to fungal diseases of anthurium, the plant may also suffer from a bacterial disease, the so-called bacterial blight of anthurium. In her case , brown, smudged spotsappear on the anthurium leaves, which turn brown with time. The leaf tissue turns yellow around the spots. Sick leaves must be removed, and in case of severe infestation, the entire plant must be discarded.Spraying with the bactericide Miedzian 50 WP and biopreparations Biosept 33 SL, Biochikol 020 PC, and Bioczos BR are helpful. Spraying should be repeated every 7-10 days.
Anthurium pests
Anthuriums can also be attacked by pests of potted plants, such as mealybugs (small white fluff resembling wool on the leaves), cups (small, hard, brown or red oblong discs on the leaves), thrips (tiny, silver-white spots on the surface of the leaf) and aphids (the leaves show colonies of small insects and sticky discharge). In case of these pests, spray with insecticides for potted plants, eg Provado Plus AE, or use Provado Combi Pin soil sticks (now available under a new name - Provado Care). I also recommend Emulpar Spray, based on natural ingredients and safe for household members.
