If you have Norway rats, put traps in dark areas close to the walls and any place you see droppings. If you have roof rats, place traps along ledges, shelves, beams, and tree branches. Use rat poison.

He explains that roof rat droppings are about half an inch long with pointed ends. "If you find these droppings around your home, especially in your attic or rafters, you may be facing a roof rat ...

Look for these key signs to tell if you have roof rats: Their droppings are small, about ½ inch long, with pointed ends, often found in attics or near food sources.

Check for rat droppings around pet food containers and recycle bins. Rats are primarily active after dark — hearing rodent activity in your attic at night should raise concerns.

Look for rat or mice droppings in your attic or crawl space. Roof rats are common here and are especially active when citrus trees offer fresh fruit, according to the University of Florida ...