Black dots on the apple skin may indicate infection of the fetus with some disease. It is very important to find out what the tree is sick with, since some diseases that manifest themselves as such an external sign can be dangerous to humans. To avoid harm to yourself and the tree, you must correctly determine the cause and eliminate it. I will tell you about the most common situations.
Iron deficiency (chlorosis)
During the growing season, apple trees accumulate a large amount of iron in their fruits, but periodically the trees themselves suffer from a lack of this element.
External signs of iron deficiency:
- pale green or yellow leaves;
- manifestation of a small scattering of black dots on deciduous plates and fruits.
Among the reasons for such a shortage, I can include insufficient nitrogen nutrition, high salt content in the soil and damage to the root system.
Separately, I will mention a more rare, but just as unpleasant mineral deficiency as a lack of magnesium and manganese (spotted chlorosis).
It is also expressed by the pallor of the foliage color, as well as by the drying out of the crown and its massive fall.
Scab
The disease is caused by a fungus and affects apple trees already at the flowering stage. The main external signs include a dark "olive" rash on the leaves, the appearance of thickenings on the branches, and also significant damage to ripe fruits (roughening and cracking of the skin, dark spots, loss of taste and smell).
Reasons for the appearance of the fungus:
- thickening of branches;
- wet and rainy summer;
- unorganized watering schedule;
- incorrectly carried out agro-technical manipulations.
ring spot
A viral disease that spreads very quickly in the garden and is extremely difficult to cure. There are many ways of infection: through pollen, seeds, grafting and insects.
Outwardly, it appears on apples in the form of ring spots with a dark, pronounced center. Initially yellow, over time they increase and darken.
The main reasons for the appearance include the density of the deciduous crown, weeds, high humidity and hot weather.
Fighting methods
Remedies depend entirely on the cause of the black rash. In case of a lack of elements, extraordinary feeding of the garden should be carried out, if a disease is detected tree, it is urgent to organize treatment in order to save not only the crop, but also the fruits. I must say right away that folk remedies will help apple trees only in case of a small infection.
In case of a serious defeat, I advise not to give in to excessive pity and remove the diseased tree in order to save the rest of the garden.
Prevention
Together with individual procedures, I advise you to carry out several universal actions that will help to avoid the spread and further development of the problem:
- regularly mow and weed weeds under apple trees;
- when planting a garden, choose strong and resistant varieties;
- remove fallen and damaged fruits in a timely manner;
- carry out, if necessary, pruning, thinning and crown formation;
- carry out autumn digging of the root circle;
- carry out agricultural activities on time.
Even unpretentious garden apple trees require the care and care of the owner. Then there will be no need to worry about the condition of the trees and the harvest.
How do you take care of your garden? How often do you encounter diseases of apple trees?
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#Apple tree#diseases treatment methods#garden