The tree diseases the most common are bark beetle, chestnut cancer, white mildew (powdery mildew), gray mold, monliosis, elm graphiosis, round sore, sulphurous polyporus, fir rust and the leaf mimic of the 'horse chestnut. Most or all of them can be effectively prevented by caring for the trunk and base of trees.
A cure for wounds and cracks, as well as a valid prevention against tree diseases, is the painting of the trunk. The product that serves this purpose can also be prepared at home with natural ingredients, without resorting to chemicals. What you need is:
- clay (or clay);
- horsetail macerate;
- fresh bovine dung (without straw);
- calcareous algae;
- infusion of tansy.
Mix the clay with the horsetail infusion until you get a thick liquid and then add the dung and the rest, then brush the trunk of the trees from the collar to the first stage using a brush or a brush.
One treatment a year is sufficient, taking into account that the best times for painting the trunk are autumn and early spring. In this way, the trees are protected from temperature fluctuations and winter moths, wounds are also healed and the bark is slightly smoothed. This is important because where the bark is smoother, parasites lose most of their hiding places.
Regular and well-done pruning is also an excellent prevention against tree diseasesespecially when it comes to fruit trees. From spring until late summer it is useful to pour nettle macerated on the base of the trees, which nourishes and strengthens them.
Let's learn how to prune
Specified that the base of the tree means the surface around the trunk for an extension equal to the diameter of the crown (which corresponds approximately to the extension of the root system), to prevent tree diseases this area should be periodically fed with compost and organic fertilizer. Then the base of the tree should be covered with mulch of cut grass, leaves, chopped nettles or other organic plant material.
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