Once a year Riverstone sprays for spiders and it should be more! All year-long there are spiders (wood, black widow) and if you're allergic to them than STAY AWAY! There are also lots of feral cats and I've never seen Animal Control pick any up. You take a risk when you dump garbage at night; make sure to look under your hood...otherwise you might find a kitten with a burned tail clining for life when you pull over to investicate the "burning smell" (like I did).