Used as a pesticide and molluscicide, particularly in agriculture to control slugs and snails in crops such as vegetables, fruits, and ornamental plants. Also applied in non-crop areas like gardens and nurseries. Acts as a contact and stomach poison, disrupting the nervous system of target pests. Occasionally used as a bird repellent to protect seeds and fruits from bird damage. Due to its toxicity, it is handled with care to minimize risks to non-target organisms and the environment.