Mouse Facts

House mice are second only to humanity as the most populous mammals in urban areas. House mice are considered dangerous and destructive pests. Infestations should be handled swiftly and are most efficiently dealt with through professional pest control methods.

Because they carry and transmit viruses, bacteria and other diseases, mice are considered to be troublesome pests. They are commonly responsible for causing damage to personal property and are notorious for commercial crop destruction. In agricultural communities, mice may also be responsible for machine and equipment malfunction. These pests are capable of causing massive losses in commercial farming enterprises, as food that has been contaminated by mice is rendered unfit for consumption. Humans who consume contaminated food may contract a number of mouse-borne diseases, including salmonellosis. Within domestic environments, food contamination may be less obvious and foods may be consumed unknowingly. The constant chewing of mice also causes damage to electrical wires, clothing, books and furniture. They destroy storage boxes, electrical lines and other materials while building their nests. Mouse populations can expand to include over 200 specimens in a matter of months.

The presence of mouse droppings is an early and certain indication of an infestation. These dark, tiny feces are particularly dangerous and should not be handled without the use of gloves and a protective face mask. Mouse nests can be located within homes, and infestations become obvious when holes appear in walls and floorboards. Nesting areas may be found in drawers, shoeboxes, storage boxes, under cabinets and other areas that are seldom accessed. Mouse tracks are sometimes visible in dusty or muddy areas, and holes in walls confirm their presence as well as their nesting places. Homeowners experiencing infestations may hear noises at night and smell the mouse urine in areas with poor ventilation.

Mice can contaminate surfaces and food sources within homes. Hantavirus is a particular threat associated with particular rodents such as deer mice. The virus is contracted with inhalation of particles released when mouse droppings, urine and saliva are disturbed. Contact your local pest control professional to discuss extermination methods.

Black or brown, can be over 40 cm long, with a long tail, large ears and eyes, and a pointed nose. Body is smaller and sleeker than the Norway rat’s. Fur is smooth.Roof 

Rat Behavior

Roof rats are highly adaptable. They prefer to live in high places, but may live in a variety of environments. They are nocturnal by nature and are accomplished climbers. As their name suggests, roof rats may be found in elevated areas such as trees, rafters, attics and roofs. Roof rats can also nest on the ground if necessary.

In dense populations, roof rats will establish a social hierarchy, wherein dominant males mate more than subordinate males.

They prefer to consume fruits and nuts, although roof rats are omnivorous and will feed on almost anything available to them. These rodents have been known to consume tree bark, meat and grain. Roof rats are also food hoarders, stashing supplies of food such as seeds and nuts.

Roof Rat Biology

Roof rats are also commonly known as black or ship rats. They are long, slender rodents that reside in arboreal spaces. Roof rats may inhabit trees, roofs, eaves or attics. Their tails are as long as or longer than their bodies.

Roof rats can be carriers of several diseases and are formidable pests in human dwellings. They are thought to have been one of the carriers of the fleas which caused the Black Death in Europe. Fleas on the rats bite and spread the plague to humans. Roof rats are also capable of spreading illnesses through their bite, urine and droppings.

Norway rats are large rodents that may weigh in excess of 500 grams. They can reach lengths of 40 cm,and their tails alone may measure 21 cm. The body of the Norway rat is covered in shaggy fur that is brown or gray in color. The ears and tail are covered in scales, and the tail is shorter than the head and body. Droppings are capsule-shaped.

Norway rats typically nest in underground burrows from which they enter buildings in search of food. They tend to remain in hiding during the day.

Rat Behavior

Norway rats are omnivorous and feed on a variety of food sources. If given the choice, they will consume meats, fruits, grains and nuts. Dead animals also serve as a food source for these rats, and they are capable of catching small fish and rodents. They require water to drink, and they make their colony as close to a water source as possible. Norway rats live in communities with dominant and subordinate members, though they are not truly social like ants.

Rat Biology

Norway rats are prevalent throughout North America. Arriving on ships from Great Britain circa 1775, these rodents quickly spread throughout the American Midwest. By the 1800s, they were present as far as Ontario, Canada.

Today, Norway rats thrive in a variety of human habitats. While it is believed that Norway rats originally lived only within temperate forest regions, they are extremely adaptive and now thrive comfortably in densely populated cities. Outside, they can be found burrowing in the soil beneath buildings, in embankments and near tree roots. Inside, they live in basements, crawlspaces, attics and sewers. They can be carriers of various diseases.
Roof Rats
Norway Rats
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