RODENTS
The following is an overview of the potential losses that could be caused by rodents through disease, contamination, and damage.
- Food lost to rodents is equivalent to food for 200 million people.
- Rodents consume 20% of the world’s food supply.
- They are responsible for millions of dollars of damage to computer systems and other electronic equipment.
- Annually, $120 million is spent on rodent control programs or devices.
- Annually, 100,000 individuals are bitten by rodents.
- For fires listed as “cause unknown,” 25% of them are attributed to rats or squirrels.
- Rats were responsible for shutting down the Sacramento area’s Internet.
- Rats have also shut down an airliner, costing the company $100K per day, and totaling almost $1M before the problem was solved.
Gray Squirrel (Sciurus Carolinensis)
- Squirrels can store food in attic areas, helping mice and other insect pests, such as carpet beetles, survive
House Mouse (Mus Musculus)
- Contrary to some beliefs, mice do not grow up to become rats.
- Mice can fit through holes only 1/4 inch in diameter, usually without chewing.
- Most houses that do not use professional pest control programs have mice living in the attic, feeding on seeds and drinking water found in gutters.
- Mice can live in attics without ever coming down for food and water, only doing so in cases of overpopulation.
- Black rat snakes will commonly also live in attics in order to prey on mice.
- When homeowners find mouse activity in the common living areas of their homes, they should assume that a larger problem may be present in the attic and other inaccessible areas of their homes.
- Mice usually produce six babies per litter, birthing seven litters per year, each capable of living up to three years, meaning potentially 126 more mice within three years.
- They are excellent climbers that can ascend a brick wall without breaking stride, can jump up to 15 inches, and survive falls of more than 8 feet without injury.
Sewer Rat or Norway Rat (Rattus Norvegicus)
- These rats can produce up to six litters a year, with an average of seven babies per litter, meaning an average of 42 young each year.
- They can live up to five years and become sexually mature at only four months.
- For a breeding female, she can produce up to 194 babies throughout her lifespan.
- In many cases, rats have moved out of depressed areas and into older suburban areas to enjoy the better quality of food being expelled into sanitary sewers through garbage disposals.
- The practice of feeding dogs, cats, and birds outside will definitely attract rats.
- Rats can fit through holes the size of a half-dollar coin, but will chew through an opening if it is not big enough.
- Rats can chew through lead, aluminum, bone, cinderblock, and concrete as well as plastic garbage cans.
- They are known to spread diseases such as bubonic plague, which is still active in the Southwestern United States.
- They are excellent climbers, often spotted in trees and along telephone lines, and are capable of a 4- to 5-foot standing jump.
- Rats are also excellent swimmers that can swim as far as 150 feet through a water line, emerging in toilets or floor drains (which is why an unused basement toilet should be blocked or removed).
- Their natural enemies include large dogs, owls, and hawks, but they are ferocious enough to back down even large predators such as tigers.
Deer Mouse or White-Footed Mouse (Peromyscus spp.)
- The deer mouse is known to be a major co-vector of Lyme disease