By doing without chemical-synthetic agents, the natural defenses of plants and animals are promoted. Fairness is a top priority in relationships in the industry. Even "weed" is part of the organic farm. It serves as a habitat for beneficial insects and as a ground cover it protects the valuable humus layer and thus prevents soil erosion. Beneficial insects control pests and thus support the ecological balance. Biodiversity-promoting areas such as hedges and flower meadows also serve as a habitat for rare plants and offer protected nesting sites for birds.