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
What Are The Mating Habits Of The Black Rat And Norway Rat?
Black Rat
The ship rats have a polygamous mating framework, where a single male mates with various females. As a rule, the prevailing male is a successful breeder. These rats mate from March to November. The development or conception period goes on for 21 - 29 days, yielding 3 - 5 litters of 1 - 16 young (with a normal or average of 7) every year. Children of this species are brought into the world altricial. Their eyes open just at 15 days old, while hairs show up before the end of the nursing period. The young ones are weaned, and become independent at 3 - 4 months of age.
Norway Rat
Norway rats generally build homes in below-ground burrows or at ground level. Homes might be fixed with shredded paper, fabric, or different stringy materials. Litters of 6 to 12 young ones are brought into the world 21 to 23 days after conception. Baby rats are stripped, and their eyes are shut; however, they develop quickly. They can eat solid food at 2 1/2 to 3 weeks. They become independent at around 3 weeks to about a month and arrive at reproductive maturity at 3 months old, sometimes as early as 8 weeks. Female Norway Rats may come into heat every 4 or 5 days, and they may even mate a day after a litter is conceived. The average female rat has 4 to 6 litters per year and may effectively wean at least 20 offspring every year.
