Los Angeles County, Los Angeles Rat Control Situation:
Hi David, I'm in southern California. I have at least one rat in my ceiling, maybe two or more. I've read your website and really appreciate the great insight you're providing. Based on your advice, I've caught 3 rats around the outside my house (over the last 2 months), trimmed trees back (3 days ago), and plugged all the access holes I could identify (3 weeks ago).
Yet I still have at least one rat in my attic. Though I've place several snap traps (baited with peanut butter and bird seed) in the attic, I get no nibbles. I also cannot find any evidence of their paths. I've moved the trap several time with no success. From inside the house, I hear them in sections of the attic (about 3:00 am) that are completely inaccessible to me (because of firewalls.)
So I hired a pest extermination company. For $275 they put some poison bait stations outside, and three snap traps in the attic that are baited with a beef jerkey substance. The traps are near the attic access panel - not near the rat noise activity. The guy's reply was that the scent would lure them. He also reviewed my hole-plugging and said it was fine. He didn't get onto my roof. It's been three days and I check the snap traps in the morning and around dusk each night.
My questions are:
1. Is it safe to assume that the rat(s) sleep in my house during the day and at night they are coming and going outside? Does this mean I've missed an access point?
2. Considering the inaccessibility, is it common to drill a hole in the ceiling (like a 4" hole for recessed lighting) to place traps in the attic for those inaccessible places? If I drill a hole, then I can stick a camera up there and take pictures to look for evidence, place the traps, monitor them, etc. But then I've got a hole to deal with.
3. Is it worth parking myself on the roof and patiently waiting to see where the rats are coming and going?
4. Have I given the beef jerkey snap-traps enough time to do their thing? Any other advice? Thanks for your help!
Los Angeles Rat Control Tip of The Week
What Is The Largest Size A Rat Can Get To Be?
With an average lifespan of about 2 - 3 years, some species of rats can grow as large as 4 pounds. But on average, almost all rats are bigger than mice. Also, the size of a rat fairly depends on the specie and the sex of the rat. Male rats usually are larger than females. They have a longer body frame with tails as long as their body and can grow as big as 2 lbs.
Domesticated rats usually do better when it comes to size mainly because they are provided with all they need to grow properly and healthily. For pet rats, an adult rat can grow to a length of 9 to 11 inches with a tail length of 7 to 9 inches. If properly managed, some large species of rats can even grow as long as 20 inches. It all depends on how well the rats are being managed and taken care of.
One of the most fascinating thing about rats is that having a large body size doesn't mean they won't be able to pass through small openings and enter into your home. Rats can compress their body in order to be able to pass through small openings. Provided the opening is wide enough to allow the easy passage of its head, it will pass through. Therefore, you shouldn't consider the fact that the rats in your neighborhood are too big to gain access to your home through small openings. Instead, you need to seal all small openings up as soon as possible to avoid a rat infestation.
When it comes to rats with large sizes, the Bosavi woolly rat is one of a kind. This specie of rat can weigh up to 3.5 lbs. and grow as long as 32 inches. Although, this particular specie of rat can only be found in volcanic caves.