Nepeta cataria 'catnip' is another herb that roaches find repulsive or repelling, explains the Iowa State University; so, unless you have a feline occupant that might experience a sensory overload from bowls of leaves placed throughout the home, give it a try -- catnip oil makes an effective mosquito repellent, reports the university. If you have a cat, use bay leaves in lieu of catnip, as bay leaves repel as well. Use Catnip. Garlic Once again all you need to do is place a few leaves around the house in the obvious places and this wonderful herb will keep roaches away. Well a study by Iowa State University has concluded that the essential oils in catnip is more effective at repelling roaches than DEET (a commonly used insect repellent) is! The herb can therefore prevent a roach infestation. 5. Not only does it produce beautiful flowers, this is also a proven natural repellent for ants, bugs, mites, insects, other pests and roaches. Catnip spray: This is a type of herb that belongs from the mint family, and can be used to curb cockroaches out of the house. How to use Catnip: Roaches are repelled by catnip, and so putting catnip around the house assists in repelling the ugly critters. Chrysanthemum. It is known to be very effective against cockroaches. Shop for Catnip plant. Clovite is a vitamin supplement used for horses. In fact it kills cockroaches. If you have roaches feeding on your organic mulch or soil beds, planting chrysanthemums would be a good solution. Reason being? You may want to use a repellent when you’re filling in holes and cracks so that you can keep roaches from entering a space that has been properly exterminated. The catnip herb is a natural repellent for cockroaches. 7. Catnip contains the chemical “nepetalactone,” which cockroaches are sensitive to. 1. Catnip also keeps the cockroaches from returning after they leave because they hate the smell. 1. It will send the cockroaches flying to wherever they came from. The nepetalactone in catnip exhibits repellency property and it is also nontoxic to pets and humans. Catnip is a method that works well for repelling roaches, but it will only repel and not kill off the population. Catnip – It also works as natural repellent to roaches. This method should NOT be used if you have cats in the house. How it Works; Catnip plants contain a chemical compound known as nepetalactone. And if you are struggling to deal with cockroaches then use some of these techniques and I am sure you will be able to repel cockroaches to a good extent. These plants, though loved by plants harm roaches and other insects. Roaches will leave your home in no time using this method. Catnip is not only one of the most effective deterrents against roaches in the plant kingdom, it's one of the best roach repellents available across the board. 2. Catnip. Catnip Catnip Plants – Source Catnip is generally known as the plants that our feline pets love to have around.. What you do not know that catnips are excellent at repelling roaches and numerous other bugs like ants, flea beetles, weevils, and more.. All you need to do is grow loads of catnip all around your house. Catnip | While cats love the smell of catnip and it’s non-toxic to humans and animal, the same cannot be said for roaches. Simmer 1 tablespoon of catnip leaves in 2 cups of water and strain it. Having an indoor garden will be a great idea as you can bring these plants closer to tackle your pest issues. Clovite. Ammonia works effectively as a repellent for roaches due to its sharp smell. Catnip ; Catnip plants are also known to be effective in repelling roaches. Does Boric Acid Actually Kill Roaches? Although lethal to roaches, this plant will not harm pets or children. 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