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Whether used for preventive or curative purposes, the natural and biological treatment of a garden is quite possible. Discover in this article how to fight naturally and effectively against diseases, wounds and parasites that invade your garden plants.

Biological treatments against wounds and diseases of the garden

  • Trichoderma is a natural treatment which accelerates the healing of the wounds of the tree (consecutive to a size, for example). It is also used to treat fruit pests by placing it in the trunk excavations.
  • The Bordeaux mixture, the best known biological treatment, is a mixture of copper sulphates and lime. The result of this mixture: a blue powder that must be diluted in water to be sprayed on the trees of the garden. Its function is to fight against cryptogamic diseases (fungi), particularly prevalent in gardens.
  • Sulfur can be used on fruit trees in addition to the Bordeaux mixture, in order to increase its effectiveness. It is generally used as a preventative treatment for disease control upstream, but it can also be used to treat trees with scab or powdery mildew. It too must be diluted in water to be sprayed on the plants.

Fight naturally against pests

  • Nettle manureIf it is a particularly effective natural fertilizer, it is also a powerful pest repellent. Diluted and sprayed on the leaves of the plant, it repels insects (especially aphids) as well as many mites. Finally, nettle manure is used as a preventive treatment (but not curative), ideal to strengthen the defenses of the plant.
  • Pyrethrin is extracted from the chrysanthemum. Its insecticidal properties make it possible to fight against aphids and caterpillars, but also against most insects.
  • Organic Marseille soap, based on olive oil, can also be used as an insecticide. Just melt it in the water. In addition, it appears as a completely harmless treatment for humans (which is not the case for all the treatments mentioned above, even if they are natural and biological). The soap is sprayed on and under the leaves of the plant to asphyxiate aphids and mealybugs.


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