Lily is a fairly simple plant. Each garden and greenhouse grows this beautiful flower. But there are some features of care that you need to know in order for this beauty to honor the gardener with her flowering. One of these features is the soil and watering. The second is the prevention of fungal and viral diseases, as well as the prevention of pests. There are several reasons why lily leaves turn yellow. A quick and correct determination of the cause of violations will help to avoid the further spread of dangerous diseases of these charming plants.
Iron deficiency, or chlorosis. Chlorosis is especially noticeable on young leaves. In appearance, a healthy plant every day acquires a bright grassy color with yellowness of leaves, and the gardener wonders, bewildered: "Why?" The lily leaves turn yellow more and more, but the veins of the leaf retain their healthy green color. Such a deviation occurs in plants that are in
calcareous soil with high acidity and with excessive waterlogging of the soil. Also, this violation is observed at high soil temperatures. Among the lilies there are varieties that are especially prone to yellowing leaves due to a lack of iron. To solve this problem, during the growth of plants, root or foliar top dressing with iron preparations is carried out.
Blight, or soft rot. Plant growth is slow. The lower leaves begin to turn yellow, gradually yellowness spreads upward. Most often, rot forms on the stem in an undeveloped apex. The leaves turn yellow, the top begins to blacken, and the aerial part of the plant bends. Frequent rains contribute to the development of the disease.
Fusarium It is expressed in brown spotting on the stems. Leaves turn yellow ahead of time and fall off. The scales that make up the bulb are also stained and rot. After a while, the whole plant completely dies. To avoid this disease, you need to choose healthy bulbs for planting.
Leaf nematode. Another likely reason lilies turn yellow is pests. Plants develop slowly and do not bloom. The leaves take a round yellow-brown color and eventually dry out and fall off. Lesions can be seen at first only on one side of the sheet. Nematodes live between the flakes of the bulbs and are selected under favorable conditions. The control of these pests consists in processing the bulbs immediately before planting, treating growing plants and removing weeds from the beds.
Another reason why lily leaves turn yellow is a deficiency or excess of nitrogen. In the case of an excess of nitrogen-containing fertilizers in lilies in the spring, spots appear on the leaves that turn brown, and after that the entire leaf turns yellow and dies. Usually in this case, the bulb itself is badly damaged by spots. Such plants are better to throw away, as this is a functional disorder. Another possible reason why lily leaves turn yellow may be a lack of nitrogen. Plants are pale, yellowish, weakly growing. Correct the situation can make feeding containing the desired dose of nitrogen.