🐭 Commensal Rodents Guide
Rats & Mice Control Guide
House Mouse · Norway Rat · Roof Rat — professional-level identification, treatment, and prevention.
🐭 Three Commensal Rodents
🐭
House Mouse
Enters: ¼ inch gap
🐀
Norway Rat
Enters: ½ inch gap
🐁
Roof Rat
Enters: ½ inch gap
Commensal rodents are among the most destructive and dangerous structural pests. They contaminate food, spread disease, damage buildings, and reproduce rapidly. One pair can produce dozens of offspring yearly.
Health Risks
Rodents spread diseases and contaminate food and surfaces with urine and feces:
Salmonella
Leptospirosis
Rat-bite fever
Typhus
Hantavirus
📋 DIY Professional Treatment Plan
1Inspect entire home — identify entry points and activity areas
2Place snap traps indoors along walls and near droppings
3Install tamper-resistant bait stations outdoors
4Seal all entry points with steel wool, copper mesh, or hardware cloth
5Install weep hole excluders (mono slab homes)
6Remove food sources and eliminate shelter
7Monitor weekly — reset traps and check bait stations
🧠 Rodent Behavior (Key for Control)
- •Travel along walls — avoid open areas
- •Mostly active at night
- •Follow scent trails
- •Prefer safe, hidden nesting areas
- •Reproduce rapidly — one pair can produce dozens of offspring yearly
Safety
Always use tamper-resistant bait stations — indoors and outdoors
Keep baits away from children and pets
Follow all pesticide label directions
Never place poison loose in open areas