Do Cockroaches Have a Smell When Killed?
WouterThe smell that cockroaches give off is known as the “death stench.” This smell is used by roaches as a warning to their living relatives to avoid disease and predators. Apparently, this stench is caused by a blend of fatty acids in their body. The smell is difficult for human noses to detect. Once a roach dies, it will release this odor, as its body decomposes. This rotting odor can come from just one dead roach, or it could be from an entire colony that emits a foul odor.
Although it is difficult to detect the smell immediately, it can become more noticeable over time. There are several factors that contribute to the smell’s intensity. One of the reasons for this is that the smell is released when cockroaches die in large numbers. These deaths can occur from exterminator work, poisonous baits, or food shortages. When the odor accumulates, it can cause people to notice the presence of cockroaches. These scents are actually made of three different chemicals: cuticular hydrocarbons, oleic acid, and pheromones. These three chemicals are released at different times in the cockroach’s life cycle.
Another factor that contributes to the odor is mold. Roaches can hide in small cracks and deep corners of a home. If you notice any signs of these insects, clean the area thoroughly with soap and water, or use a degreaser. Then, use disinfectant to kill any remaining roaches.
