Determining Rodent Infestation Size
Certain signs can indicate the size of a population. If rodents are seen at night but never during the day, the population has probably not become large and can be controlled with traps and bait. If you are seeing any rodents during the day, numerous fresh droppings, or new gnaw marks, it is likely that the population has become quite large and might require professional pest control services. If you suspect an area is being frequented by rodents, try placing a very thin layer of flour or baby powder there. If rodents are active, you are likely to see their trails in the powder.