Lily is a fairly simple plant. In each garden and greenhouse grow this beautiful flower. But there are some peculiarities of care that you need to know, so that this beautiful woman will blossom the gardener with her bloom. One of such features is soil and watering. The second - the prevention of fungal and viral diseases, as well as the prevention of pests. There are several reasons why the lily leaves turn yellow. A quick and correct determination of the cause of the disturbance will help to avoid the further spread of the dangerous diseases of these charming plants.
Deficiency of iron, or chlorosis. Chlorosis is especially noticeable on young leaves. In appearance, a healthy plant every day acquires a bright herbaceous with yellow color of the leaves, and the gardener puzzles with the question: "Why?" The lily turns yellow more and more, but the veins of the leaf retain their healthy green color. This deviation occurs in plants that are in the calcareous soil with high acidity and excessive soil moisture. This violation is also observed at high soil temperatures. Among the lilies there are varieties, especially strongly prone to yellowing of the leaves due to a lack of iron. To solve this problem during plant growth, root or foliar top dressing with iron preparations is performed.
Late blight, or soft rot. The growth of plants is slow. The lower leaves begin to turn yellow at first, gradually yellowing spreads upward. Most often, rot is formed on the stem in an undeveloped top. The leaves turn yellow, the top begins to turn black, and the aerial part of the plant bends. The development of the disease is facilitated by frequent rains.
Fusarium. Expressed in a brown patch on the stems. The leaves turn yellow before time and disappear. The scales that make up the bulb are also spotted and rotted. After a while, the whole plant completely dies. To avoid this disease, you need to choose to plant healthy bulbs.
Leaf nematode. Another possible reason why the lilies turn yellow are insect pests. Plants develop slowly and do not bloom. The leaves take a round form of yellow-brown color and eventually dry out and fall off. Defeat can be seen first only on one side of the sheet. Nematodes live between scales of bulbs and under favorable conditions are selected. The control of these pests consists in the processing of bulbs just before planting, processing growing plants and removing weeds from beds.
Another reason why the lily leaves turn yellow is the deficiency or excess of nitrogen. In the case of an overabundance of nitrogenous fertilizers in the lilies in the spring on the leaves there are spots that become brown, and then the entire leaf turns yellow and dies. Usually in this case the bulb itself is severely damaged by stains. Such plants are better to be thrown away, as this is a functional disorder. Another possible reason why the lily leaves turn yellow, there may be a shortage of nitrogen. Plants are pale, yellowish, slightly growing. To correct the situation, application of fertilizer containing the required dose of nitrogen can be done.