The majority of lands today are very depleted. How did we get there? Through the use of chemical treatments! However, it is possible to do without. The effectiveness of natural preparations is undeniable. Discover how to take care of your garden and crops using fermented extracts, essential oils, herbal teas, macerations, effective microorganisms, etc. After shedding light on the functioning of living organisms and relying on the innovative triangle theory, Éric Petiot and Patrick Goater present 15 preventive treatments and over 130 curative treatments against pests and diseases for fruits and vegetables, cereals, vineyards. This practical book offers professionals and passionate gardeners a complete program to regenerate plants and soils with pioneering techniques, enabling them to become autonomous in the choice, production, and use of natural treatments.