Corineus of the cherry tree: symptoms and treatments

Corineus of the cherry tree: symptoms and treatments

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Mottled leaves and falling fruit in the ripening stage are just two of the symptoms ofcorineo of the cherry tree. Thecorineumis a very common fungal disease caused byStigmina carpophila affecting the stone fruit plants.

The intensity and spread of thecorineumthey increase above all in the seasons and in environments with high levels of humidity, so prevention should be aimed at in years characterized by heavy rains in the autumn period and at the vegetative restart.

Corineus of the cherry tree, the symptoms to recognize it

The fungal microorganism Stigmina carpophila affects the leaves causing the appearance of small necrotic spots which in turn cause the detachment of the tissues and the perforation of the flap. The leaves of theCherry treeattacked bycorineumthey appear stained at first and later full of holes.

Damage caused by thecorineumthey are not localized only on the leaves. Cherries are also affected by the appearance of small rounded black notches surrounded by a reddish border. The fruits are thus inedible and end up detaching from theCherry treeeven before completing the maturation.

Corineo del Ciliegio: period in which it occurs

In Italy, the period in which the corineum attacks stone fruit plants such as the cherry tree with greater frequency and harmfulness is that which corresponds to spring and autumn, when the rains are also greater. It is in fact the water that facilitates the germination of the conidia and their penetration into the cuticle of the leaves. The rains also facilitate the spread of spores on healthy leaves by spreading the disease.

Pruning to stem the corineum

To stem the spread of the corineum from the affected branches to the healthy branches, it is obviously essential to promptly proceed with careful pruning in order to eliminate the problem at the source and preserve the parts of the plant that are still healthy.

How to contrast the corineum of the cherry tree

If the infection is ongoing, there is little to do. Of course, you can proceed with the indicated treatments but this action may contain the disease but not eradicate it completely. The most effective treatments include two interventions, one in the fall, when theCherry treeit will have lost all the leaves and a second intervention in spring, during the vegetative restart.

The treatment to be performed onCherry treehit bycorineumit is the classic antifungal one, that is, it involves the use of the effective Bordeaux mixture-20 (allowed in organic farming) or, alternatively, copper oxy-chloride-20, also allowed in organic farming. The interventions must be performed at the doses indicated on the label and twice a year:

  • in autumn, after the fall of the leaves of Cherry tree
  • in spring, at the time of vegetative restart, when the buds break

Where to buy the preparations for the treatment of the cherry corineum?

You can contact specialized garden centers or take advantage of online sales. The products in question are for example:

  • Copper-based fungicide.
  • Fungicide - Bordeaux mixture at 10.80 euros for a 1 kg pack, with shipping costs included.

There Bordeaux mixture it is effective for the treatment of various diseases. The fields of use are vine, olive, vegetable, fruit, rose, ornamental and floral against most diseases such as downy mildew, peach blister, corineo of the cherry tree and other trees (plum, apricot, peach but also cypress), scab, rust, rot ... it is suitable for organic farming.

Bordeaux mixture

Another related article of ours that may interest you is the one on how to make Bordeaux mixture at home

Video: Hirosakis Cherry Tree Doctors (May 2022).