Which of the following is NOT a large roach?

The correct answer is the Oriental cockroach, which is typically considered to be smaller than the other roach species mentioned. While the American, Smokey brown, and Australian cockroaches are known for their larger size, often measuring over two inches in length, the Oriental cockroach generally measures about one to one and a half inches long.

Understanding the distinctions between these species is important in pest control because different types of roaches may require specific treatment strategies. Recognizing the size and characteristics of various cockroaches can aid operators in identifying infestations and implementing effective management protocols. Therefore, knowing that the Oriental cockroach is not classified as a large roach serves to enhance your identification skills within the field of structural pest control.