All mosquitoes must have standing water to complete their life cycle.It only takes 7 days for a mature mosquito to develop from an egg during warm weather.Mosquitoes do not hatch in grass or shrubbery unless standing water lies beneath. Adults may be seen resting in these areas.

Two types of rats are typically found in the area. Evidence of activity can be recognized by the following:

Africanized honeybees (AHB) are descendants of escaped African bees imported from Brazil in an attempt to improve honey production. AHB arrived in Southern California in 1994, colonizing Riverside County in 1998. They have essentially displaced feral European honeybees in Riverside County, and are now the dominant wild bee encountered. 

Domestic flies, while often a nuisance, can also transmit germs 

Ticks are in the arachnid family which makes them related to spiders. As ectoparasites, they attach to animals, pets, and people using complex mouthparts resembling a "harpoon". While they are attached, they suck blood for several days, dropping off once engorged.