Rodents & wildlife

Raccoons, skunks & opossums

An occasional visitor usually calls for removing food access and avoiding contact. Repeated den use or waste accumulation needs a different response, especially a raccoon latrine that ordinary rodent disinfection cannot make safe.

Latest source check 15 October 2026Source-led field guide

Match the organism, its setting and its signs. A photograph or a single symptom cannot confirm every species or cause.

Raccoon standing in a garden
Photographed exampleRaccoon standing in a garden.Procyon lotor
Identification limits & photo credit

Face mask and front paws are visible; the tail is hidden. The source describes an animal expecting food. Do not feed or approach wildlife to obtain an identification view.

Raccoon standing in a garden. Photo: Saaws. CC BY-SA 3.0. Original source · CC BY-SA 3.0 & details

In this guide
Your first decision

Remove repeated rewards

Bring pet food indoors at night and secure refuse and access to food stores.

Sources for this section

University of California Statewide IPM Program · UC Statewide IPM Program · UC Statewide IPM Program · Centers for Disease Control and Prevention

Find the local decision-maker

In the United States, use the Association of Fish & Wildlife Agencies’ state directory to reach your wildlife agency. Ask about the species, occupied nests, dependent young, allowed methods and the operator’s authorization. Elsewhere, use the regional authority routes. Do not assume another region’s rules apply.

01 / Identify

Recognize the signs

Observe the animal
Use a distant view or camera, not scat handling. Raccoons have a facial mask and ringed tail; skunks have contrasting black-and-white patterns; Virginia opossums have a pointed face and long bare tail.
Distinguish visits from occupancy
Missing pet food or disturbed turf shows feeding, while repeated entries under a deck or into an attic suggest shelter use.

Look more closely

Compare the labeled examples and their limits. Images are independently enlarged, not shown at a common scale.

Striped skunks beside a log
Photographed exampleStriped skunks beside a log.Mephitis mephitis
Identification limits & photo credit

Representative striped-skunk pattern; striped-skunk colour patterns vary and spotted skunks differ. A daytime sighting or a photograph cannot establish illness.

Striped skunks beside a log. Photo: Tom Friedel / BirdPhotos.com. CC BY 3.0. Original source · CC BY 3.0 & details

Virginia opossum photographed at night
Photographed exampleVirginia opossum photographed at night.Didelphis virginiana
Identification limits & photo credit

Shows the pale face and largely bare tail, with much of the frame in darkness. One species only. The image cannot establish health, behaviour or that an animal caused nearby damage.

Virginia opossum photographed at night. Photo: Melissa McMasters from Memphis, TN, United States. CC BY 2.0. Original source · CC BY 2.0 & details

Sources for this section

University of California Statewide IPM Program · UC Statewide IPM Program · UC Statewide IPM Program

Differences that change the decision

A similar-looking organism can need a different response. Compare the evidence and what it changes.

Compare every column. On a narrow screen, scroll the table sideways.

TypeWhat to checkWhat changes
RaccoonsSkilled climbers and omnivores; communal latrines can occur.Secure bins and investigate den access. Treat suspected latrines as a specialist cleanup issue.
SkunksOften forage near the ground and can dig small pits or peel turf.Keep pets away; cornering increases the risk of spraying or bites.
Virginia opossumsNocturnal climbers with a bare prehensile tail; may use pet doors or under-deck shelter.Remove overnight feed and close access once occupancy is safely resolved. Australian possums require different local guidance.
Sources for this section

University of California Statewide IPM Program · UC Statewide IPM Program · UC Statewide IPM Program

What else could it be?

Rodents

Smaller gnawing animals need a different trap and cleanup plan.

Compare rats

Burrowing mammals

Plant loss with tunnels may be a groundhog, vole or gopher rather than night-time scavenging.

Compare burrowing wildlife
Sources for this section

University of California Statewide IPM Program · University of California Statewide IPM Program

Inspect the right places

  1. Check attractants

    Inspect unsecured bins, birdseed spills, pet bowls, fallen fruit and accessible compost.

  2. Stay out of den and latrine areas

    Keep children and pets clear. Do not enter confined contaminated spaces or reach under a deck to confirm an occupant.

Sources for this section

University of California Statewide IPM Program · Centers for Disease Control and Prevention

02 / Respond

Choose a proportionate response

For pesticides, the local product label determines the allowed pest, site, precautions and timing. Check safety and regional guidance.

  1. Remove repeated rewards

    Bring pet food indoors at night and secure refuse and access to food stores.

  2. Arrange humane, lawful exclusion

    A qualified operator should check dependent young and repair entry after safe removal; removing an animal without repairs may invite another.

  3. Separate raccoon cleanup

    Roundworm eggs can persist and most chemicals do not kill them. Contact animal control or a qualified cleanup service for a site-specific latrine plan; do not reuse a mouse-dropping checklist.

Turn these steps into your own checklist ↗
Sources for this section

University of California Statewide IPM Program · UC Statewide IPM Program · UC Statewide IPM Program · Centers for Disease Control and Prevention

Avoid these mistakes

  • Do not feed, corner or handle these animals.
  • Do not put rodent poison, mothballs or improvised repellents under a building.
  • Do not assume a normal-looking animal is disease-free or a daytime sighting alone proves rabies.
Sources for this section

UC Statewide IPM Program · UC Statewide IPM Program · Centers for Disease Control and Prevention

03 / Follow through

Check whether it is working

When to look again

Suggested practice: record repeated visits and entries after attractants are removed; review exclusion timing with a local specialist.

Evidence of progress

No fresh entry or den use and secure food storage are useful indicators; passing wildlife need not disappear.

Record an observation ↗

Get help when…

  • Bite, scratch or possible saliva exposure: prompt medical or public-health advice; pet exposure needs a veterinarian.
  • Raccoon latrine, trapped young or occupied building: qualified local assistance.
Prepare for a professional inspection ↗
Sources for this section

Centers for Disease Control and Prevention

Prevent a return

  • Fit secure bin lids and protect pet doors.
  • Check beneath decks before repairing screens.
  • Keep sandboxes covered and clean food spills.
Sources for this section

University of California Statewide IPM Program · Centers for Disease Control and Prevention

Common questions

Can I disinfect a raccoon latrine with the mouse-cleanup method?

No. Raccoon roundworm eggs need a different cleanup assessment; most disinfectants do not kill them.

Does trapping solve the problem permanently?

Food and shelter remain attractive unless access is corrected, and relocation rules differ locally.

Sources for this section

UC Statewide IPM Program · Centers for Disease Control and Prevention

Check the evidence

Sources & scope

References retain their geography and dates. A source-check date is not a claim of independent specialist review.

  1. Raccoons

    University of California Statewide IPM Program. California, United States; local wildlife law and species vary; source date 2014-07; source check, not expert review Checked 2026-10-15.

  2. Skunks

    UC Statewide IPM Program. California, US; source check, not expert review Checked 2026-10-15.

  3. Opossum

    UC Statewide IPM Program. California, US; Virginia opossum, not Australian possums; source date 2015-10; source check, not expert review Checked 2026-10-15.

  4. Preventing Raccoon Roundworm

    Centers for Disease Control and Prevention. United States; source date 2024-11-05; source check, not expert review Checked 2026-10-15.

  5. Rats

    University of California Statewide IPM Program. California, United States; local wildlife law and species vary; source date 2025-06; source check, not expert review Checked 2026-10-15.

  6. Pocket Gophers

    University of California Statewide IPM Program. California, United States; local wildlife law and species vary; source date 2025-06; source check, not expert review Checked 2026-10-15.

Individual medical or veterinary diagnosis, structural assessment, uncertain species identification and local treatment permissions require the appropriate professional. About our editorial process.