Contents of the article:
It’s hard to imagine that an apple tree doesn’t grow on a piece of land, even tiny. If it is a fruit-friendly area, apple orchards become sources of income. But wherever this beautiful tree grows, diseases can overtake it. Why do leaves grow black and dry in the apple tree, why the tree dries and what to do - questions that are answered.
The garden only attracts the eye and is admired when it is healthy. And the fact that it is easier to prevent the disease than to cure it applies not only to the person, but also to his green friends. From the very beginning of cultivation of an apple tree, it is necessary to control its development
When buying a sapling, you should make sure that the root system is well developed and there are no mold stains on the roots, the surface color is uniform. The vaccination site is noticeable. The stem has a uniform color, the bark is not damaged. Harvesting the leaves of fallen trees in the fall will prevent the spread of spores and other infections; it is best to burn the autumn garden leaves and then use the ashes as fertilizer.
Cutting and crown formation should be performed only with a disinfected instrument, and the wounds should be immediately closed from the penetration of contagion. A photo of the disease of apple leaves and their treatment will show the danger of non-compliance with hygienic requirements. In the spring, two treatments with fungicides should be carried out when the kidneys are swelling and on the green cone. For mature trees need timely feeding, mulching pristvolnogo circle.
The tree will remain healthy only with proper care and will delight the decoration and the harvest. Strict adherence to agricultural technology pledge of a healthy garden.
If all activities are completed, the apple tree can get sick in rare, particularly unfavorable years. If you know the signs of the disease, during the inspection you can understand the reason for yellowing of the foliage on the apple tree.
Diseases of apple trees
Apple trees are nourished from the roots and leaves. Therefore, the disease of any of the parts of the tree, if not treated, will lead to death. Why an apple tree dries and what can be done can be determined on the spot. There are various diseases that are transmitted:
In the spring after blooming of young leaves, oily specks on the young foliage will be noticeable. This is a scab on an apple tree. Over time, the spots on top are covered with velvet bloom, then the whole plate becomes brown. That is why the apple trees not only turn black and the leaves dry at the height of summer, but the fruits are also affected by the disease and become unfit for food.
Scab is a fungal disease. Its spores overwinter on last year's foliage and are introduced into the plant along the green cone, from the moment young leaves appear. The condition for the introduction becomes a slow leaflet, and warm rainy weather. In such conditions, the embedded spores germinate and create a mycelium. Scab often affects old trees with a thick, poorly blown crown. Having developed, the disease first destroys the leaves, they turn black and fall off. Fruits are ugly or fall off after setting.
will help to decorate the landscape in front of the window. The fight against fungal diseases is in compliance with agricultural practices, repeated spraying with fungicides based on copper or their substitutes. All treatments are stopped 3 weeks before harvest.
Another formidable disease of fungal nature is rust. This disease manifests itself after the apple tree blooms. Orange spots appear on the leaves of the tree at the top of the plate. On the spots there are black dots, under them are spore sacs that open and shoot spores. The bottom of the sheet also gets a yellow spot in this place. In the future, the disease progresses, as seen in the photo. Diseases of apple leaves and their treatment is a process that requires patience.
In addition to leaves, rust in a state of neglect affects the fruits and branches of the tree. Initially, the fungus develops on a juniper, and later, after wintering on plant residues, it falls on a leaf of a tree.
Therefore, the juniper in the garden needs to be treated for fungal diseases, often even without visible signs of rust.
Rust can cause yellowing of apple leaves. It also leads to fruit fall and cracking of the bark on the trunk. At the first signs of rust, it begins to fight. Immediately remove all infected leaves, shoots, fruits. The branches are cut a few centimeters below the point of infection. Spray is carried out with one of the following preparations:
- on the basis of copper - cuproxate, chlorine oxide, vitriol of copper 1%;
- Zineb Solution 0.4%;
- Topaz, Vectra.
Treatments are repeated at intervals of 2 weeks until the end of the season.
To prevent this formidable, and difficult to remove, fungal disease, several rules must be observed:
- should not allow the proximity of conifers and fruit trees in close proximity;
- in early spring, before the start of sap flow, find the affected places, clean them up to healthy wood, process 5 grams in half a glass of boiling water with a strong solution of copper sulphate( 5%);
- smear garden pitch or special putty, after repeating the treatment with fungicides for prevention.
A rich harvest and a healthy garden! Read why the leaves of the apple tree turn yellow!