Quick Answer
To deal with ground squirrel infestations effectively, it's essential to use a combination of exclusion, repellents, and removal methods. This involves sealing entry points, using predator urine or repellents, and removing affected burrows. Early intervention and prevention are key to controlling ground squirrel populations.
Identification and Preparation
Identifying ground squirrel burrows is crucial in effectively dealing with infestations. Look for burrow entrances, typically 2-5 inches in diameter, with surrounding vegetation often trampled or eaten. Prepare by sealing all entry points, especially around buildings and gardens, using hardware cloth or metal flashing to prevent re-infestation. Wear protective gear, including gloves and a dust mask, when handling burrow debris or using repellents.
Exclusion and Repellent Methods
Use a combination of exclusion and repellent methods to deter ground squirrels. Apply commercial repellents, such as predator urine, along the perimeter of the area to be protected. For best results, reapply repellents every 2-3 weeks during the active season (February to September in California). Seal all holes and burrows, and consider using a 1:10 ratio of hot pepper spray to water to repel squirrels from specific areas.
Removal and Maintenance
For severe infestations, consider hiring a professional to remove affected burrows and debris. If removing burrows yourself, wear protective gear and use a shovel to carefully dig out the area, taking care not to spread squirrel droppings or urine, which can contain diseases such as leptospirosis. Regularly inspect the area for signs of re-infestation and reapply repellents as needed to maintain control of ground squirrel populations.
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