Wayne County, Detroit Rat Control Situation:
Please can you offer me some free practical advice to eradicate rats from my roof space, I am English but now reside in Brazil. Here in Brazil there are no such associations, councils to exterminate vermin, the only choice is either to employ local labour and hope he is being truthful about his qualifications, quality of workmanship, formal training etc. or to do the job properly do it yourself. For several months I have heard pattering of tiny feet in my roof space, the roof space being the area between the bottom of the tiled roof (pantile type tiles) and the top of the plastic false ceiling with only about 4 inches, 100mm in between so snap traps are not practical, I live in the apartment directly below the area contaminated and have not seen any rat droppings in the apartment, the area is approx 9 meters x 15 meters =126 square meters , 29ft x 49ft = 1421 square feet. The apartment is a first floor level approx 4 meters= 13 feet from ground level with no adjoining buildings. Am I correct in assuming that the rats enter up through 4 inch, 100mm plastic rain down pipe from the roof guttering? or up through the toilet sewage system through the u bend in the bowl and then climb a wall to enter the roof space, or do the rats scale the outside 12 meter = 39 feet wall and enter the roof eves. I am considering to remove all the plastic false ceiling to gain access to the infested locations but am concerned firstly that if I disturb the rats they will disperse and then return the same way they originally entered the area, secondly, if l remove the false ceiling will l be the unlucky victim to receive their bite, what do you suggest I do? Poison the visitors first? then if quiet after a week or two remove the ceiling and completely sterilise? (with what can you recommend). I am not concerned with the humane topic of eradicating my guests, they pay no rent. (KK KK ). Also it is my intention to fully enclose the rafters and eaves on the outside with either aluminium or galvanised steel mesh. If you can take time out to advise me, I will be very grateful. For your information a cross section sketch of my roof is enclosed to help you understand the constructional theme of my roof. Would it be practical to remove the plastic ceiling room by room, first destroying the nests if any, then sanitising ,sealing all access points of entry, then to move to the next room etc.? I would really appreciate any advice you would furnish, unfortunately I can not afford to pay your expenses etc. for you to submit a quotation, I can offer you though if you ever visit Brazil a nice glass of cold Chopps (Brazilian draught beer). Fondest regards and in anticipation of a reply many thanks.
My response: Yes, your plan to seal off the roof with galvanized steel mesh should work. But you have to seal 100percent of the openings. Then, trap, properly trap on rat runways, ALL the rats, and remove them from the house.
Detroit Rat Control Tip of The Week
How Likely Is It That A Rat In The Attic Will Have A Nest Of Babies?
Rats are among the most common pest animal species that people may have to deal with around the home, and because they are quite small they can often be quite elusive little animals to deal with as well. They are quite good climbers when it comes to moving around a domestic property, so if you are worried about rats, they won?t necessarily be around ground level. Because the attic or roof space of most domestic properties is rarely used, it can often be the dark quiet place where rats can get a foothold and build a nest without being noticed by the people living beneath.
Do Rats Have A Mating Season?
Like most wild animals, rats in the wild do have a mating season, where they will normally copulate and impregnate female rats in the spring, and then the female will then give birth a few weeks later, and can then have a few litters over the summer. However, the reason for the mating season is that in rural areas there are limited food sources available during the winter months, so it is impractical for rats to mate during these months. However, over recent decades, a growing number of rats are actually giving birth throughout the year because food sources are also present throughout the year, so whatever time of the year you discover rats in the attic, you may find there are babies there too.
How Often Will Rats Give Birth?
Because of how quickly rats can go from mating to giving birth to a litter of baby rats, a female rat can often be back and ready to mate again within a few weeks from giving birth. This means that in some cases female rats can give birth to up to ten litters a year, so the population of rats from one breeding female can increase very quickly. It is also worth noting that a baby female will actually become sexually mature herself after around six weeks from birth, so the possibility for a rat population to expand very quickly where there is sufficient food is certainly there.
Dealing With Rats In The Attic
When it comes to dealing with a rat infestation, the first step is to identify where in the attic the rats are active, and while taking the appropriate precautions, look for areas where there is a buildup of rat droppings. You should then place several rat traps in these areas of the attic, along with a small amount of food as bait, and the next step is simply to watch and wait. You should remove any rat carcasses as they are caught in your traps, and then re-lay the trap with a new serving of bait, and you should then continue this process until you no longer see any signs of fresh rat activity, and when you are no longer catching any more rats. You will then need to carry out the appropriate repairs.
What To Do With A Nest Of Baby Rats
In some cases you may actually find a nest of baby rats in the attic, and if they are very young they will often be unable to look after themselves, and will ultimately die if they have to live without the support and feeding from their mother. Because of how common they are, baby rats are rarely suitable to be looked after by a wildlife rehabilitator, so in this case the most humane thing that you can do will be to kill those baby rats as humanely as possible.
