Hennepin County, Minneapolis Rat Control Situation:
Hi, David, Thank you very much to establish your very educational and candid website. I bought a house half a year ago and it had rats in the attic and in the crawl space. I hired a rodent removal guy to take care of the problem. I spent almost $1000 but I still had rats - he didn't seal all the entry points. Anyway, I then did a lot of research in rats. lol. According to my rodent guy, there was about 10 rats living in my attic. But his trap caught none after sealing all the holes (He thought he did but there was two crawl space vent open). He then claimed that all rats gone because they are "scared". Later I set traps myself and I caught two large roof rats (really large, almost 12 oz each I would say). After that, no more caught. In October, I hired an insulation company to remove ALL the batt insulation from my attic. There was still thousands of droppings left on the joist bays. I painstakingly vaccuum them out (me wearing face masks). Now the attic is clean. However, I could not find ANY gnaw marks on wood, nor electric wires, nor on anything else. Why is that? How could it be? This house had tens of thousands of rat droppings in the attic, thousands of droppings in the garage and thousands in the crawl space. But I am not able to spot their damage other than the droppings? I thought rats have to chew on stuffs to keep their teeth from growing too long. I hope you could help answer this question. It always bugs me if there is something unexplainable. Thanks! Guangchi from Minneapolis Area
Minneapolis Rat Control Tip of The Week
How Deep Do Rats Dig Holes Or Burrow Under Houses?
Asides from being a very smart animal with a high sense of adaptability, rats are keen diggers. With their dexterous paws and strong teeth, they can chew through plastic, wood, and even aluminum. This clearly shows how much of a good digger these rodents are. Also, if you have holes around your house, these rodents might be responsible for creating them.
Maybe you have rats digging holes or burrows under your house and you have always wanted to know how deep these holes are. The fact is these excellent diggers can dig holes as long as 3 feet and as deep as 18 inches. This digging skill allows them to create deep burrows and holes under your home
Due to their smart nature, rats don't just dig burrows and holes blindly. They dig with plans and prepare for the worst-case scenario by creating one or two exit points apart from the entry hole, in case they are attacked by a predator. Therefore, if you see a rat hole or burrow around your house, you must look around to find its exit hole. Unlike the entry hole which is usually clean and free from dirt, rats usually use thatches of grass to conceal their exit holes. This simply means you have to look around carefully to find it.
While examining these holes and burrows, you need to be very careful and avoid moving too close to it. Snakes or any other harmful animal could also be inhibiting the hole. If you have to dig in the hole or make close contact, make sure you are well protected.