Knox County, Knoxville Rat Control Situation:
I own a 2 story w basement corner row house in Knoxville. Last night while asleep on the couch in my first floor living room, noise in my ceiling by the front wall woke me up. Sounded like the scurrying of 1or 2 mice. Joists run the width of my house, from the outer wall to my neighbors house, so that space leads to nowhere. No food, water, or other openings are available. Should I be concerned, should any (?) action be taken?
One story concrete slab house with rats in attic. I have sealed up every hole to the attic I can find. The last thing I did was put the 1/2" wire mesh on all the vent pipes on the roof. The wire mesh on all the stacks, seemed to fix my problem, but about 2 months later they are back. I put up some security cameras in the attic and at bottom of a double wall space for plumbing, and can see the rat coming down and going up at bottom of a 2" pvc vent pipe obscured by a wall between two bathrooms with a tub on one side and shower on the other. The vent pipe is for the tub and shower. From the top of wall in the attic, I was able to cut out around the pipe and see down the wall about halfway down the 2" pvc vent was split (offset) maybe broke during construction where 2 pipes were joined together. Could not see actual chewed off part, but is probably there. I can see that the rat could get in there, but my question is where or how is he going outside besides into the sewer? The top is sealed with the wire mesh. I can fix the split pipe easily by tearing out the shower wall, but do you think that would fix the entry problem? How long can rats stay in attic without going outside for food? Do attic rats tunnel under a concrete slab house for entry?
Knoxville Rat Control Tip of The Week
Norway Rat Biology
The Norway rat is typically nocturnal. It is a good swimmer; however, unlike the related black rat, it is a poor climber. Norway rats burrow well, and regularly uncover broad tunnel systems.
Rats are equipped for creating ultrasonic vocalizations, both as grown-ups and babies. They may likewise transmit short, high frequency, socially-prompted vocalization during interaction with different rats or animals. This call most takes after a trilling sound but is undetectable to human ears. Rats can discernibly be heard through calls sounding like squeaks when they are in trouble.
These rats are omnivores. This implies they can eat both plants and animals. As predators, rats are opportunistic.
The Norway rat can breed consistently if the conditions are reasonable, and a female can deliver up to twelve litters in a year. The gestation period is just 21 days, and litters can number up to fourteen, albeit smaller litters are common. In this way, the rat population can increase rapidly. Rats have a lifespan of around three years, yet regularly live less than one year.
Norway rats live in enormous hierarchical groups, either in tunnels or subsurface places, such as sewers and basements. When food is hard to come by, the rats lower in the social order are the first to die. If a large portion of a rat populace is eliminated from a zone, the rest will expand their reproductive rate, and rapidly reestablish the old populace level. This makes it imperative to have a plan to get rid of the entire rat population on your property if an infestation occurs.
