One of the popular evergreens is thuja It is planted in parks, alleys, decorate the area near administrative buildings, often planted in the dacha or garden plots. Unfortunately, thuja is prone to diseases and pests, how to deal with them, we consider in this article.
How to fight tui diseases
It is possible to fight tui diseases, but it is better to prevent them. For thuja need proper care: watering, feeding, pruning, weeding. Many diseases develop in a humid environment, so it is important not to overdo it during watering, usually watering is carried out once a week.
With regard to fertilizing, organic fertilizers such as fresh manure and chicken droppings are contraindicated. In fresh organic fertilizers there are too many living microorganisms that can lead to serious illness. It is imperative to clear the near-stem circle of weeds, which can also cause an infection or an invasion of parasites. In the treatment of plant diseases, fungicides and bordeaux preparations are used.
They get rid of pests with the help of insecticides, they also use folk methods. In case of severe damage to certain parts of the plant, they must be removed and disposed of. In principle, almost all diseases can be cured by detecting them at an early stage.
Brown shoots
Brown shoots are a fungal infection, its symptoms appear in early spring. The fungus often hibernates in the remains of vegetation and in the soil, therefore it is necessary to thoroughly clean the area for the winter. When a thuja is damaged, the scales of the cortex begin to turn yellow, the disease gradually affects the shoots, and they die off.
Owners of plots on which conifers grow should know how to treat thuja from a fungus. The best antifungal agent is "Fundazol". A two-percent solution of the plant is sprayed in the summer-autumn period to the month of October inclusive. Affected branches must be removed. To protect the thuja from the fungus, sprinkle the roots of the plant with limestone.
Important! Fertilizers for thuja are made in spring, in the fall it is categorically not advisable to fertilize a tree so that young shoots do not freeze.
Rust
Rust - a disease of young plants, the causes of the disease can be several: high humidity, lack of food, hot weather and dry air. As a preventive measure, all conifers are sprayed on the site in the spring. Spraying is carried out with the preparation "HOM" (40 g per 10 liters of water), the diseased parts of the thuja are removed. If localization of the disease fails, treat with Fundazole (20 g per 10 liters).
Schutte
Shutte is a fungal disease, its symptoms are darkened and falling needles. Schutte, like rust, affects mainly young trees. The reason is lack of nutrition and improper care. The treatment is carried out by spraying a solution of the drug "Topsin-M" (15 g per 10 liters of water). Processing is carried out not earlier than the threat of winter frosts. Spraying a thuja with Bordeaux liquid is considered very effective against fungi; you can buy it at any flower shop.
Did you know? Indians of North America called thuy "tree of life." On the basis of thuja, the tribes treated many diseases, used as a prophylactic against scurvy. Wood plants used in the manufacture of fences, roofs, boats, canoes.
Phytophthora
The most dangerous fungal disease for tui on the plot is phytophtora. The reason for its occurrence is most often the proximity of groundwater or poor soil drainage. The fungus settles on the roots of the plant and gradually affects the entire tree. The trunk closer to the surface becomes loose, needles and bark change color to gray, and over time the tree dies. Fungicides are used for prophylaxis; phytophthora cannot be cured if the root system is damaged — the plant is better digged and burned. Spores of the fungus live for a long time in the soil, so the soil needs to be replaced or disinfected.
Tinder mushroom
The tinder fungus strikes thuja through mechanical damage or dried bitches. Spores penetrate the plant tissue, forming a kind of growths - the fruiting body of the fungus. Thuja at the same time dries and turns yellow. Mushroom growths, all affected and yellowed parts of the thuja should be cut off. Cleaned and cleaned wounds with special putty. Spray the plant itself with a solution of Bordeaux liquid. Preventive spraying is carried out in the spring and autumn periods.
Shrinking shoots and branches
If the thuja has turned yellow and began to dry out, and there are no visible reasons, what to do about it? Most likely, the cause is root Fusarium. This fungus infects the root system, so it is not immediately noticeable, the shoots first dry, and then the whole tree. Crown and roots under a bush watered with systemic fungicides. Since the fungus appears in weakened plants with a lack of nutrition, it is necessary to feed this fertilizer with fertilizer, which contains a large amount of copper or iron.
Attention! In early spring, it is desirable to remove damaged and dry shoots, in the summer season to shorten the branches by a third length.
How to deal with Tui pests
Tui have many pests, insects infect both above-ground parts, and the roots of the plant, in addition, lay their offspring, which also destroys the tree.
Weevils
Adult weevils feed on the bark of young shoots, and their larvae destroy the root system. Subsequently, the tips of the branches of the thuja become brown. Favorable habitat for weevils is acidic and moist soil. It is possible to destroy parasites with the help of insecticides, and it is necessary to lime the soil if it has an acid reaction.
Spider mite
Spider mite likes dryness. This parasite is dangerous because it multiplies rapidly, entangling the web with all the trees. The result - yellow needles of thuja turned yellow and crumbled, let's see what to do in this case. With a strong lesion is better to handle drugs - acaricides. If you noticed the web in time, you can do with folk remedies: sprinkle with garlic or dandelion extract. In addition, spray with plain clean water: the mite does not like moisture.
Wireworms
Wireworms - beetles, often black, humus attracts them to the site. These parasites gnaw up the roots. The larvae of beetles feed on bark scales and tissues of young shoots. Often the larvae live in areas with stagnant moisture. Prevention is good drainage in the soil and liming with acidic soil. With a large accumulation of pests, the soil is treated with preparations containing diazolin.
Thuye pseudo shield
Thuja pseudo-shield hits the bark with yellow fast-growing ulcers. If time does not get rid of the pest - the whole trunk will turn yellow, and the thuja will die. They use drugs from the false guard: "Actellic", "Antio", "Karbofos", "Rogor". Folk remedies: soap solution on alcohol (15 g of soap, 10 ml of denatured alcohol, 1 l of water); applying glue from the caterpillars and larvae to the bark of the tree.
Tuva beetle
Tuva beetle damages the bark of the tree, leaving holes-moves. The parasite can be grabbed along with the sapling when buying, so carefully inspect the planting material. The appearance of the pest happens with improper care, lack of nutrition for young plants. You can get rid of it by spraying with insecticides. As a preventive, treat the thuja with Bordeaux liquid in the spring.
Thuja motley moth
Thug moth gnaws young shoots of trees, small larvae up to 4 mm. With the defeat of the shoots die off. Twice spraying with Tornado, Moskitol, Fumitoks (seven days interval) will help fight the parasite. Branches affected by moths must be removed.
Did you know? Thuja has a pronounced balsamic smell, thanks to which it was used in various rituals, magical acts, sacrifices and other rituals by the priests of ancient Greece.
Tuevaya aphid
If the thuja dries and the needles turn yellow, what to do about it and what are the reasons? The reason is tuevoy aphid. These small insects settle on thuja's needles, feeding on its sap. Most often affected shoots that grow above the ground. The most effective method of aphids - processing "Malophos".
Let's sum up: prevention and timely, proper care - the guarantee of health of your plant. If the thuja is crumbling or the tips of the shoots turn yellow, do not rush to panic. Inspect the plant carefully, often this is due to the preparation of the thuja for the winter period, and not with the disease or the attack of insects.
