What are the Signs of Rat Infestations?

Rats are responsible for the transmission of many diseases. Their feeding habits are destructive, and their nesting behaviors can compromise the structure of infested buildings. However, rats are secretive and not seen by humans when populations are low. Therefore, an infestation may prove difficult to confirm.

Norway Rat on Counter

The most obvious sign of a rat infestation is the presence of dead or living rats. Rats prefer to hide, given enough space, so if rats are observed in plain sight, it is likely that a full-blown infestation already exists. When space becomes limited due to increased population, rats are forced out into the open. Rat droppings may be present, indicating a healthy, feeding rat population. Rats also tend to leave dirt or grease marks along walls and floorboards.

If these obvious signs are not present, examine the surroundings for rat runs. These tracks are left in grass and low vegetation and act as foraging paths for rodents. Rats tend to follow the same paths after they have been established. Norway rats dwell in burrows found in grassy embankments, beneath the roots of trees and at the edges of paving and drain covers. Roof rat nests may also be found inside in lofts, attics, beneath floorboards and in other dark, infrequently visited locations.

Rat in Kitchen Pantry

Rats gnaw incessantly on materials such as plastic and wood. The presence of damaged materials and large holes in floorboards and walls are sure signs of infestation. Rat teeth marks are large and rough in appearance.

In the event of an infestation, it is best to consult a pest control professional. Although various traps are available, they address only individual specimens and will not prove effective in the face of an infestation. Additionally, rats tend to be wary of unknown objects in their established foraging paths, rendering many traps initially ineffective.

Rat Behavior

Rat Borne Diseases

Rat Diet

Rat Fleas

Rat Habitat

Rat Holes

Rat Identification

Rat or Muskrat + Differences

Rat Sense of Smell

Rat Tracks

Rat Varieties

What Does A Rat Look Like?

Enemies and Predators of Rats

Rat Bites

Resources

Dig Deeper on Rats

Different Types of Rat Species

My carpet has been chewed by rats

Q

What could have done this? Would it be in the house?

Can you spray for rats?

Q

I work in a granite shop, and we have a lot of rats. They are big and ugly. I wonder if there exists any spray or something similar which can kill rats.

Cotton Rats

Rats

Identifying Norway Rats

Rat Habitat

Rat Fleas

Rat Repellents

Types of Rodents

Connect with Us

Our customer care team is available for you 24 hours a day.

877-819-5061

Find a Branch

Our local technicians are the pest experts in your area.

Get a Personalized Quote

We will help you find the right treatment plan for your home.

Home is where the bugs aren't™

SERVICES

Pest ControlTermite ControlPrevent and Protect

PEST LIBRARY

Browse All Pests

© 2021 Orkin LLC

Terms of UsePrivacyAccessibility StatementCareers