How Long After Pest Control Do Cockroaches Die?

It sounds like you have a lot of cockroaches in your house. But how long after pest control services remove the cockroaches does it take for them to die? We wanted to know, so we asked a bunch of experts. Turns out, there is no definitive answer—it all depends on the severity of the infestation and how long it took for the cockroaches to bounce back.

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How Long After Pest Control Do Cockroaches die?

Cockroaches can live for many years after being infested with a pest. However, some cockroaches may take longer to die than others. According to the Centers for Disease Control and Prevention (CDC), cockroaches can survive up to six months after being infected with a food-borne dragonfly larva.
Additionally, according to the CDC, cockroaches can live up to one year after being infested with a hard-bodied tick.

How Long Do Cockroaches Take to Die?

After they are infected by a food-borne dragonfly larva or tick, cockroaches may take several days or even weeks before dying. Once they die, their bodies will decompose and release an unpleasant smell. Some cockroaches that die from being infected with a food-borne dragonfly larva may also leave behind small pieces of themselves that can be caught by other animals or humans.
When pest control professionals control an infestation of cockroaches, they may find that some of the insects become extinct and no longer reproduce in that area. In addition, some cockroach populations may decreased as a result of the pest control efforts.
After being pest controlled, cockroaches will likely die within a few weeks or months.