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Mice, Rats, and Other Rodents

Rodents come indoors to look for food, water, and shelter. Find out what you can do to prevent unwanted guests.

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Eliminate rodents indoors.

Use these tips to prevent problems with rats or mice.

  • Keep food in metal coffee tins, glass jars, or airtight containers. Rodents can chew through cardboard, plastic, and soft metals.
  • Put away leftover food. Clean up crumbs and spills immediately.
  • Eliminate standing water in water cooler catch basins and cups or glasses left overnight.
    • Notify Housing Maintenance, (858) 534-2600 or Facilities Management, (858) 534-2930 to repair plumbing leaks.
  • Keep trash cans tightly covered. If possible, move all trash to an outside dumpster at the end of the day.
  • Check for entry points.
    • Look for holes in doors or walls, particularly holes around plumbing.
    • Inspect outside doors for missing weather stripping and make sure gaps between doors and sills don't exceed one-quarter inch.
    • Notify Housing Maintenance, (858) 534-2600 or Facilities Management, (858) 534-2930 if you discover rodent entry points.

Permanently reduce outside rodent populations.

Eliminate sources of food, water, and outdoor hiding places.

  • Decrease rodent food sources.
    • Control snail populations.
    • Remove bird feeding stations.
    • Don't leave pet food out overnight.
    • Cover garbage cans with tight-fitting lids. Clean up spilled garbage immediately.
  • Eliminate water sources through proper soil drainage and irrigation line repair.
  • Rodent-proof your landscaping.
    • Use pebbles or rocks instead of plants to form an 18-24-inch border around the building.
    • Trim bushes and trees away from doors, windows, patio balconies, roof lines, and other points of entry.
  • Eliminate nesting areas.
    • Trim palm trees, a favorite home for rodents and other pests.
    • Cut grass short and prune shrubbery so that the ground is visible underneath.
    • Keep trash and other debris cleaned up.

Contacts

Emergencies

  • Environment, Health & Safety:
    (858) 534-4534 weekdays, 8 a.m. - 4:30 p.m.
  • Campus Police: (858) 534-4357 after business hours

Non-emergencies (Typical response time: 1 working day)

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Notice: The UCSD Environment, Health & Safety Department does not provide pest control advice or help to individuals or agencies outside UCSD. Area residents should contact their local animal control agency or exterminator for assistance.