What if your gladioli suddenly turned yellow? It seems that the rules of cultivation are respected, good care, moderate watering and everything was fine, when suddenly you noticed that the leaves of your gladioli began to turn yellow, to dry out. In this case, we must urgently take decisive action, but let us first understand the question: Why are the gladiolus yellow?
Gladioluses - diseases and pests
Gladiolus, like all other plants, can affect a variety of diseases, such as gray rot and the like. But there is a disease that is extremely dangerous for gladioli and Fusariosis is very common among them. The causative agent of this disease is the soil fungus of the genus Fusarium. Most often, the impetus for the appearance of this fungus may be waterlogging the soil, too much nitrogen fertilizer or dampness.
It is this disease that causes the gladiolus to turn yellow. First, the disease affects the corms, which appear brown spots. Then, accordingly, the leaves begin to die - they skukozhivayutsya and begin to turn yellow, drying up.
With why the gladiolus yellow leaves, we, in fact, figured out. And if you know the enemy in person, then it's time to start fighting with him. So, let's look at the methods of treatment and prevention of this disease in gladioli.
Gladiolus diseases - treatment and prevention
If you find that your gladiolus leaves have turned yellow, then the only thing left for you is to dig them out with a clod of earth and destroy them so that the disease does not spread to neighboring corms. That is, to save the affected plant is no longer possible, but it is possible, using preventive methods, to avoid the disease initially.
Methods of prevention:
- The place of planting gladioli needs to be changed at most once in three years, and even more often, since gladioli begin to ache. In addition, if your gladioli already suffered from fusariosis, then it could stay in the soil, so it is better to transplant gladioli, and in their place to plant marigolds, calendula, etc., which release phytoncides and disinfect the soil, thereby minimizing the danger infection of plants with gray rot or fusariosis.
- Before planting, it is necessary to disinfect the corms in the foundation solution for half an hour. Also they can be held in the infusion of a marigold for ten minutes.
- If you see a gladiolus struck by a fusariose, then it should be dug out immediately with a clod of earth so that the disease does not spread to other gladioli.
- Also, prevention against diseases is mulching the soil with pine needles or sphagnum moss.
- Spraying against the disease is a prerequisite, especially if the disease has already affected at least one of the gladiolus.
- On the arrival of autumn, you need to remove all sorts of vegetable residues from the bed. This will contribute to the good health of your garden.
- You can not plant gladioli in the soil, which was infected with fusariosis. If you do not have the opportunity to transplant the flowers to another place, then
The soil must be thoroughly disinfected. Often for these purposes, use a thiazone, which is mixed with sand, and is introduced into the contaminated soil about a month before the planting of gladioli.
Prevention, in general, the case is not at all cunning. If you comply with all these simple rules, then Fusarium will become a very rare guest in your beds.
Now you know the reason why gladioli dry and yellow, but more importantly - you know how to deal with this disease and how to use preventive methods not to let it go to your beds. The main thing is attentiveness and careful care, which will ensure your gladioli strong health and long bloom years.