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Common house roaches, typically American cockroaches or Periplaneta americana, usually live for around one year. The male American cockroaches survive for about one year, although the females may live up to 700 days. That’s because the reproductive cycle alone can last around 600 days for this type of cockroach.

The longevity of pest control treatment depends on the treatments and the type of pest. Pest control services for serious infestations can last 3 to 6 months. Some treatments are more or less permanent if the pro fixes how pests were entering the home. Other treatments, like sprayed barriers or bait traps, are designed to last for anywhere from 30 days to several months. Pest control often offers to re-apply treatments like this to ensure full eradication and discourage new infestations.

Although raccoons aren’t particularly picky regarding food, certain sounds, metals, and smells bother them. You can place these items around your home to keep raccoons away:

• Place wire mesh screens around and underneath decks and porches to prevent raccoons from nesting. 

• Put metal sheeting around the edges of your roof or at the base of trees to deter raccoons from coming close. 

• Place a loud battery-operated radio near the raccoon’s den to keep them from nesting.

• Keep a bowl of cider vinegar on your deck or porch.

• Remove old raccoon scents by thoroughly cleaning and disinfecting underneath porches and decks.

You should not spray pesticides of any kind into your air vents. The spray won’t reach far into the vent, minimizing its effectiveness in killing roaches, but more importantly, it’s dangerous for people and pets to inhale these chemicals. Roach spray is not a natural roach repellent, and it’s not safe to spray into air vents.