Larger burrow systems usually require two or more cartridges placed in the same or connecting burrow openings. After 24 hours, check for reopened burrows and re-treat as needed. Toxic Baits Anticoagulant baits, available at county agricultural commissioners' offices, are recommended for controlling ground squirrels. To be effective, anticoagulants must be consumed in several feedings over a period of 5 or more days. Effectiveness is greatly reduced if 48 hours or more elapse between feedings.
Dogs are more likely to consume the pelletized cereal-based baits than the loose grain baits.
Do not use pelletized baits in kit fox areas. Anticoagulant baits can be used in bait boxes or by repeated spot baiting. Boxes contain sufficient bait for repeated feedings. They are the preferred baiting method around homes and other areas where children, pets, and poultry are present. Unless a bait label specifies otherwise, bait boxes can be constructed from any durable material and in a variety of designs.