These are the five most frequently reported pests in urban areas.
Mice and their feces can carry bacteria such as Salmonella, one of the causes of food poisoning. Mouse urine causes allergic reactions in some people. Look for small, tapered fecal pellets where mice are feeding and food containers that are damaged.
The nests of pavement ants are often found under pavement, next to buildings and under building foundations. Pharaoh ants can be serious pests of hospitals, schools and apartments. There are many species of ants in Colorado, so identifying the species is important.
#3 Western Yellowjackets
Yellowjackets (Vespula spp.) are estimated to cause at least 90 percent of the “bee stings” in the state. Yellowjackets are banded yellow or orange and black and sometimes are mistaken for honey bees, but they lack the hairy body and are more intensely colored.
Weeds causes problems in lawns, gardens and athletic fields. Noxious weeds are problematic because of their nature to dominate plant communities and Colorado law requires their control.
The most common spiders found in and around homes are widow spiders, funnel weaver spiders, cobweb spiders, cellar spider, sac spiders and wolf spiders. There are only a few spiders whose bite requires medical attention, such as the western or black widow spider. Brown recluse spiders are not native to Colorado.