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
What Can I Do About A Trap-Shy Rat?
There are instances where rats tend to be trap-shy by trying as much as possible not to get too close to the trap to avoid getting caught. This particular situation can be a result of several reasons. The first and most common reason is that the rats have witnessed other rats getting trapped. Another reason is that the rats might be scared of the newly introduced object along their route.
Whatever the reason might be, getting the rats to put aside their fears and go for the bait requires a whole lot of planning and patience. Right here, we will be taking you through what you can do to stop the rats in your home from being trap-shy.
Aside from being a very common household pest, rats are habitual and will study their environment as much as they can in other to easily detect when something goes wrong or differs from the way it used to be. This naturally prompts them into being trap-shy when they notice the unusual new trap in their environment.
To stop this and make the rats in your home attracted to baits, you are going to have to take your time and repeat the following process continuously. The first thing you have to do is to make the rats in your home feel comfortable around the traps. To achieve this, all you have to do is place unset traps along their route and let them move around it without getting trapped. Naturally, rats like to move around on sawdust. You can also place sawdust on and around the traps to make it more appealing to them and make them feel comfortable and safe around the trap.
After doing that for a while, you can then go ahead and set the traps with bait. To increase your chances of trapping them, you can choose to place sawdust on and around the traps.