There are several methods that can kill cockroaches quickly:
- Insecticides: Using a spray or bait that is specifically designed to kill cockroaches can be an effective way to get rid of them. There are many different insecticides available at hardware and home improvement stores that are designed to kill cockroaches on contact.
- Boric acid: Boric acid is a natural substance that can be toxic to cockroaches. It can be applied as a powder or mixed with water to create a spray.
- Diatomaceous earth: This is a fine powder made from fossilized algae. When cockroaches crawl through it, the powder sticks to their exoskeleton and absorbs the oils, which causes them to dehydrate and die.
- Lemon juice: Cockroaches dislike the strong smell of citrus, and lemon juice can be used as a natural repellent. Mixing equal parts water and lemon juice in a spray bottle and spraying it in areas where cockroaches are present can help deter them.
It’s important to note that while these methods may kill individual cockroaches, they may not effectively eliminate an infestation. If you are dealing with a large number of cockroaches, it may be necessary to use a combination of methods or to call a pest control professional.