Decimate slugs before they decimate your plants. Apply the slug killer March-October (whenever the soil temperature is above 5?C). Within a week the slugs die beneath the soil. One application will last for up to six weeks! The packs contain living organisms, and should be kept refrigerated on arrival, and used before the expiry date, approximately 3 to 4 weeks from date of despatch. Please note - these Biological Pest Control products will only be delivered shortly before or during the stated application periods. (Please note: We regret that this item is not available to customers living in Eire.)