Apple tree scab

Almost in every fruit garden grow apple trees, for which the most common disease is scab. It does not affect the life of the tree itself, but only reduces the yield and worsens the quality of the fruit.

How does the scab on the apple tree look like?

At the end of flowering in May on the leaves appear dark, gradually growing spots with a velvety creamy coating. Affected tissues die off, and in the middle of summer there is a noticeable loss of leaves from the tree. This affects negatively not only the harvest of the current year, but also the formation of fruit buds.

The defeat of the fruit begins with the formation of the ovary. They have rounded or angular spots, covered with olive coating. At the beginning of the spot small, then they become much larger. On the fruits under the spots a cork layer is formed, which prevents the fungus from penetrating into the fetus. Affected very strongly fall fruit, and the remaining become one-sided. If the infection occurred late, then during harvesting, signs of infection of the apple-tree, the scab is not visible, but they appear during storage: small dark spots appear on the fruits, this leads to a reduction in the storage of fruits. At the same time, healthy apples do not become infected.

On the shoots, the defeat of the scab is manifested by the appearance on the cortex of small swellings, which are then torn, causing the cortex to crack, flake off, and severely affected shoots wither.

Especially intensively the disease develops in rainy weather, t. Spores of the causative agent of this disease germinate only in a liquid medium. They are carried by the wind, insects and rain. The parasite can survive on fallen leaves, diseased fruits and in the bark of affected shoots.

Measures to combat scab on apple trees

Measures to combat this fungal disease include:

How to spray apples from scab?

In the treatment of scab for the treatment of apple trees, spraying with various drugs and agents can be used, the choice of which

Preventive measures to protect the apple from the scab:

Great importance for fighting scab on apple trees has a selection for planting resistant varieties. These include Perlina of Kiev, Amulet, Oder, Tsyganochka, Reina, Sava, Freedom, Odra, Rubinola, Topaz, Revena, Prima, Priscilla, Florina, Liberty, Syrpray.

If you want to get a harvest of delicious and beautiful apples from your garden, then in a timely manner take care of protecting your apple trees from scab.