Which statement about Australian cockroaches is most true?

• A. most prevalent indoor roach
• B. common in sewers
• C. slightly larger than American roaches
• D. most prevalent outdoor roach in south FL

Answer: (D)

Australian cockroaches are primarily outdoor dwellers in warm, humid climates. In south Florida, they’re commonly found in outdoor areas like leaf litter, mulch, and other vegetation, and they only occasionally wander indoors. That outdoor preference in a hot, humid region makes them a frequent outdoor pest there, more so than indoors. It’s also helpful to note their size is about an inch or a bit more, and they are not larger than American cockroaches—the American species tends to be larger—so the option about being slightly larger isn’t accurate. In Florida, the roach that’s most often associated with sewers is the American cockroach, not the Australian, which further supports why the statement about Australian cockroaches being the most prevalent outdoor roach in south Florida is the most true among the options.