Like with standard pest repellents, spider repellents come in different forms. There are electronic, natural, and chemical spider repellents. Although all three types are effective, they have different working mechanisms.
Electronic Spider Repellers
Also known as an ultrasonic repeller, this is an electronic device that emits high-frequency sound. The high-frequency sound waves help to repel the targeted spider. Using audible sound waves to discourage the presence of pests is a rather ancient strategy. Long ago, the Chinese made use of mechanical sensory-repellers to prevent rodent infestations in agricultural plants and structures. However, ultrasound—the sound frequencies past the maximum limit of human hearing—has been used as a pest control technique for just a few years. The way this ultrasonic spider repellent works is that it’s plugged into an electric outlet. This allows it to generate high-frequency sounds, which are disruptive to spiders. The sound waves are known to cause a physiological response referred to as audiogenic seizure. Audiogenic seizures are characterized by non-directional roaming, convulsions, and ultimately death due to cerebral hemorrhage.
Chemical Spider Repellents
These are pesticides designed for the sole purpose of deterring spiders. Pest control companies incorporate an array of compounds, which discourage spiders from residing in an area. Unfortunately, most of these products pose a threat to human health and well-being. Some of them also harm the environment.
Natural Spider Repellents
Unlike their chemical counterparts, natural spider repellents are safe and eco-friendly. Natural spider repellents are also readily available since they are easy to make using locally-available products. Here are a few examples of natural spider repellents:
Spiders have an allergy to the citrus scent. It explains why the peel of oranges is highly effective in keeping these pests at bay. In fact, if you cannot access oranges, you can use any other citrus fruit such as grapefruit, lemons, and limes. To make a citrus-based spider repellent, start by cutting off the peel of your pre-selected fruit. The next step involves cutting the peel into small pieces. Place the newly-chopped peel into a container, add boiling water, and leave it to soak overnight. Strain the solution the following day and add a small amount of powder hazel to the sieved mixture. Place the solution in a spray bottle and shake the contents vigorously. You can spray this solution in high traffic areas such as cabinets, in the corners of rooms, under your sink, and anywhere else you think that spiders would like to hang out.
Peppermint Essential Oil
Another thing that spiders loathe is the strong smell of mint, which makes peppermint oil one of the most effective spider repellents. However, it is not just spiders that hate the smell of peppermint. Insects such as mosquitoes also hate this fragrance. Based on a research published in the Malaria Journal, peppermint is so effective at repelling these insects that it even kills mosquito larvae. To repel spiders, you can use peppermint on its own or dab it with a few cotton balls. Place the cotton balls in areas that are often frequented by spiders. Remember to replace these cotton balls with fresh ones on a weekly basis.
Vinegar is one of the most versatile household products. It’s incorporated in virtually all natural remedies. It is, therefore, not surprising that it also helps to repel pests such as spiders. White vinegar contains acetic acid, which serves to deter spiders. All you need to do to make this repellent is to mix equal portions of water and the white vinegar in a spray bottle. Shake the contents well, then spray the solution directly on spiders and their cobwebs.
A tasty spice with a handful of health perks. Surprisingly, turmeric is also a great spice for warding off spiders. To make the repellent, put two tablespoons of turmeric in water and stir to form a paste. Take the resulting paste and paste it on cotton balls. You can then place these cotton balls in high traffic spider areas. However, be cautious not to use the paste on furniture, walls, or flooring as it can leave permanent stains.