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Bat Repellents

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Even though bats are considered to be relatively good animals, the looks of a bat can be both startling and scary for people who stumble upon them in the attic or even inside the house. Apart from the fact that they are disease carriers and their droppings can be infectious, they largely help humans by eating off blood sucking insects like mosquitoes and moths.



Most people do not like bats in their house and have searched for ways to get rid of them. A lot of these people in turn look for repellents that would deter the bats from entering the house, but the effectiveness of repellents in getting rid of bats is questionable as they rarely solve the problem. Several types of natural and chemical bat repellents exist and are generally available for interested homeowners.

Natural repellents
Mothballs are effective at dealing with and getting rid of bats but while they might be harmful to bats, they are also harmful to humans and can cause cancer. The Naphtalene smell of mothballs is so strong and touching it alone can trigger sensitivities to the substance. It works best when used in closed up spaces.

Bright lights placed at entry or exit points may be combined with mothballs or used alone. The nocturnal animal finds it offensive and may leave for another den. The downside is that the bats are likely to look for and fly to the dark corners; bright lights also invite more pests into the space, like moths and mosquitoes, both of which are food for the bats.

Loud noises also make your attic less conducive for the bat, but for how long?

Cinnamon has a strong fragrance that bats cannot stand and so if placed near their roosts may irritate into leaving.

Peppermint is an aromatic herb that irritates bats. Placing either leaf or oil close to the bats’ entry and exit points is bound to make the bats leave the house.

Ammonia: The vapor irritates bats as well as most other animals. Ammonia - soaked rags or bowls of it should be placed in attics and other hideouts.

Fiber Glass: All bat areas such as the attics and ceilings are insulated with this material. When they come in contact with this insulation, bats feel an irritation on their skin.

Other natural repellents include Green Tea, Human hair and Coyote urine.

Store-bought repellents
These products come in spray or gel form. They should be applied at night when the bats have exited to look for food. A quarter of each component should be sprayed on every 125 square feet area. Examples are:

4-THE-BIRDS GEL: This is available in calking tubes and is applied with a special calking gun. It can be used on a bat’s roost sites both those inside the house and externally. The gel is sticky and very thick. It adheres to the surface and can stay for a long period. Whenever a bat lands on the gel, it leaves. The gel can be used for entry points and louvers vents.

4-THE-BIRDS LIQUID: This is the same material as the gel but comes in a liquid form which is sprayed on hard to reach entry spots. The substances in this product aren’t harmful to the bats; they only create a surface that the bats would want to avoid.

PEST RID: This is another granule or liquid product that is believed to be harmless to the bats. They release tastes and odors that bats cannot withstand. Spray on their hiding points and the entry points. This solution is effective for a month at the most.

Ultrasonic devices:
Transonic PRO has an array of ultrasonic and sonic signals that changes constantly and are emitted to disturb the bats habits, communication and sleep, resulting in their leaving the place. The emission also interferes with echolocation, making the area inhospitable for bats.

ET Pest Control exhibits sound waves at varied frequencies. The device can be plugged into any outlet

Homeowners that choose to utilize bat repellents should familiarize themselves with all the pros and cons of each method, and also the legalities involved. It is safe to say though, that they frequently disappoint and nothing can beat live trapping and exclusion in deterring bats.

Go back to the Bat Removal page.

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