Vorbeugende Maßnahmen gegen Pflanzen Schädling Pflanzen natürlich vor Schädlingen schützen 19. März 20188. April 2018 Dirk Hi People. Ravenous animals such as weevils, sucking insects such as aphids or fungal diseases – many gardeners despair when their plants are attacked by animals or diseases. However, the chemical mace want to use less and less, because many remedies also harm beneficial insects such as butterflies, bees and bumblebees. In particular, vegetables that are still to be consumed should not be treated by chemical means. As an alternative, various natural methods are available.