Thuja is a beautiful ornamental plant. It got its distribution due to the fact that it can be cut to create beautiful figures from foliage. However, any thuja disease can instantly destroy everything that the gardener made of it. Despite the fact that this small tree is quite unpretentious to housekeeping, as well as to planting, there are many pests that are always in a hurry to enjoy a beautiful plant. Here will be considered the most popular diseases of thuja, as well as methods of dealing with them and prevention.
So, the most common disease, not only in the tree in question, but also in many others, is in brown shoots. In the early spring, when young sprouts of the tree are just beginning to appear, they acquire a brownish tint. This means that your thuja has earned itself a fungal disease. Such shoots should be removed immediately so that the disease does not spread. For prevention, ordinary limestone is used, it is dug up to the root system. In addition, the drug "Fundazole" diluted in a concentration of 0.2 percent helps a lot. They should spray the tree every two weeks until October. However, if you managed to remove the shoots and get rid of the disease, then this operation is not necessary at all.
The next common thuja disease is called pseudoscutis. It lies in the fact that small yellow ulcers form on the trunk of the plant, which will grow if you do not start a certain treatment. Here help are “Karbofos”, “Actellik” or “Rogor”. It should be noted that these same drugs are used when aphids attack your thuja. These are small insects of gray or brown color. When their colony grows, they become covered with silvery dust, similar to wax. As a result of the attack of aphids, the foliage of the plant turns yellow and subsequently falls off.
Another thuja disease manifests itself in the fact that the top of the tree begins to turn yellow, the foliage begins to fall, and the plant gradually dies. However, you do not observe any ulcers on the trunk or blanching of the shoots. In addition, the aphids did not attack your thuja. Sometimes this happens, and this is the result of poor care. The fact is that the root system performs several functions. One of them is to deliver various nutrients from underground to the trunk and crown of the plant. If the thuja dies, this function is violated. This can happen for two reasons. In the first case, thuja disease manifests itself due to the fact that its root system has begun to rot. This happens when groundwater rises high and delivers a certain amount of moisture. The owner, of course, does not even suspect this and additionally water the plant. Rotting of the root system occurs due to excess moisture. In the second case, the disease occurs due to a fungal disease, which was described at the beginning of the article. And the methods of dealing with it are appropriate.
Thuja danica is often exposed to various diseases, since it is it that is most popular among the other species of this plant. Despite the fact that it is a hardy tree, fungi and pests can lead to its death. Therefore, do not delay the treatment if the disease has already overtaken. And ideally, it is better to carry out prophylaxis.
