Jim Fredericks, chief entomologist for the National Pest Management Association, says the first telltale sign is rat ...

Here's everything to know about roof rats, from how to tell if you have them to what attracts them to how to keep them out of your yard and house.

That doesn’t necessarily mean the city has more rats per square mile — only that San Francisco’s rat population seems to have ...

Jim Fredericks, chief entomologist for the National Pest Management Association, says the first telltale sign is rat droppings. Look, too, for chewed surfaces or food supplies as well as ...

“Rats do have a great sense of smell,” Fredericks adds. Parsons suggests sweeping your home weekly to look for signs of rats. Doing so regularly will ensure you know what’s changed if rats ...