Rid your course of gophers and prairie dogs by injecting poison wheat directly into their main runs. This paraffin-coated wheat is water resistant to withstand irrigation without breaking down before eaten. After eating the wheat poisoned bait, the gophers return to their next and die within 3-4 days. This allows time for all gophers to eat before they see death occurring. Use the Gopher Bait Probe for easy application and proper amount of bait. 30 lb. pail.