How to Keep Roaches Away: How Do Repellents Work?

the best cockroach repellent: photo

Around the globe, there is a huge number of cockroach repellents available. But according to the experts’ opinion, in order to fight the cockroaches you first have to seal all the cracks and openings. These cracks and openings are used by the cockroaches as a main passage to move in and out. Then, try your best to keep all places clean. If after this you still have a problem, you’d better use repellents.

Best Roach Repellent

We have talked a lot already about the best cockroach control products in our “How to Get Rid of Roaches” article and in the review of the best roach killer. Today we’d like to elaborate on repellents in particular. Unfortunately, few quality aroma cockroach repellents are sold, probably because they are not driven away by practically any smell. Chemical repellents are a whole different story, though. According to the customers’ reviews, they are the best repellents on the market.

Ortho 0196410 Home Defense MAX Insect Killer Spray for Indoor and Home Perimeter, 24-Ounce (Ant, Roach, Spider, Stinkbug & Centipede Killer)

Ortho Home Defense MAX Insect Killer Spray: photo

This is a universal spray poison without gas (unlike Raid, which uses it). This is a poisonous liquid substance which is supposed to be sprayed with an aerosol. It kills and repels all kinds of insects, 130 species to be precise (most often it’s bought for combating ants, roaches, and spiders)! The price for Ortho Spray is very affordable as a 24 oz bottle costs ~$13.10.

This mixture works both as a repellent and as instant poison. The manufacturers promise that Ortho will repel ants, roaches and bugs for 12 months. That will be only true, though, if the substance is not applied on porous surface and is not washed away when you clean up. That’s why you should watch where you spray it when using this chemical product. Obviously, the poison should inaccessible for kids and pets. You should rather spray it in the gaps, behind the furniture and in tech niches which cockroaches love.

By the way, Home Defense can be sprayed outdoors. There the barrier will remain for up to 3 months. It won’t even get washed away by the rain if it was sprayed in dry and warm weather. The main discussions in the comments section concern the danger of Ortho for kids, pets and good. The official statement of the manufacturer is that the product is safe for humans once it’s dry. If we were in your shoes, however, we would be careful with liquid poisons! Moreover, among the reviews there have been a couple of complaints of weak barrier created by the product. The cockroaches are not said to be afraid of it, and they allegedly return quite soon. The instant killing when in contact with the insects was confirmed by all customers, though. The Amazon rating of the product is 4.6 stars out of 5!

Price: ~$13.10 Check the current price

Another option is using universal repellents, such as Hot Shot 5580 No Pest Strip Unscented Hanging Vapor Insect Repellent. Initially, it was created for exterminating flies and mosquitoes, but there are known cases of using it against roaches and even wasps. For example, John comments that it “keeps any kind of bugs away for a while. I had this in my basement to keep cockroaches away, I‘ve never had a cockroach in my house for 6 months”.

Hot Shot 5580 No Pest Strip Insect Repellent: photo

However, we don’t know for sure whether the cockroaches were driven away by repellents. He might have been extra clean, and perhaps he ventilated his house very often. To be fair, though, we’ll list some of the main facts about Hot Shot 5580. This is a hanging aroma repellent with the coverage area of 10x13 ft. The period of effectiveness of this chemical product is also satisfactory, as it lasts for 4 months. Fortunately, you needn’t hide it somewhere inaccessible as you can simply hang it or leave it in the open space in the attic, basement or barn.

The main disadvantage of this repellent is that it can’t be used in habitable areas, so it will only be suitable for exterminating cockroaches in the warehouses or at home when you leave for vacation. Its customer rating is 4 stars out of 5.

Price: ~$5.96 Check the current price

Ultrasonic Cockroach Repellent

Besides regular repellents, there are many ultrasonic repellents (repellers) on the market which are very popular with the customers. We’ll instantly claim that no scientific study has yet proved their effectiveness. The repellency of ultrasound to mosquitoes and German cockroaches was evaluated under laboratory conditions using a random ultrasonic device developed at Kansas State University. The results confirm previous findings with commercial devices producing constant sound patterns that ultrasound, in general, is not a promising tool for repelling mosquitoes and cockroaches.

People still buy these ultrasonic devices and some even like them. As a rule, these are Chinese devices which are supposed to be versatile. They are said to repel mice, roaches, mosquitoes and ants. Personally we are a bit taken aback by such versatility. But we can’t simply skip this category of goods. The choice is always up to you.

iCooker® Pest Control Mosquito Repellent - Ultrasonic Pests Offense Repeller Products for Cockroach , Rodents Roaches Ants Spiders Fleas Mosquitoes Dummies - Mice Repeller - Electronic Wave with Best Motion Sensor - Chemical-Free-Great Work In Indoor Home Against Mouse

It is the most popular ultrasonic device. This is a small box with 3 LEDs which costs ~$19.99 and has 3.5 stars out of 5 rating. The repellent is powered from an outlet, and it is recommended it to place it in most open spots at home so that neither the furniture nor other obstacles could block the signal. The lifetime (!!) warranty provided by the manufacturer surely attracts the buyers’ attention.

iCooker Insect & Animals Electronic Repeller: photoThere are lots of positive and negative reviews iCooker Repeller. It’s so easy to get confused while reading these reviews, as all types of customers leave them. Some of them bought iCooker for exterminating the mice; others fought ants or flying insects with it.

If you want to know how to repel mice, why not buy a quality electronic ultrasonic repellent and see for yourself whether it will also repel roaches?

There is lots of feedback, and it’s up to you to decide whom you believe. As for us, we trust biologists and their studies. If you’ve got mice at home, though, why not buy a quality ultrasonic pest repeller and see for yourself whether it will also repel roaches?

Price: ~$19.99 Check the current price

Please note that everywhere here we list approximate prices (~) as sales and discounts are common, and different sellers can sell the same product for different prices. That is why we kindly ask you to check the current price before buying a product.

Natural roach repellent

There are number of natural ways to get rid of cockroaches. Given below are detailed natural agents that you can use at your home, kitchen, washrooms or any other place.

1. Bay Leaves. Bay leaves, because of their specific aroma can be used as repellent for the cockroaches at home. All those who have problem or are allergic to synthetic agents can use these leaves as repellent. Take some leaves, crush them and then place them on shelves as well as other top places as cockroaches can reach and mostly found on top places.

how to get rid of roaches naturally: photo

2. Citrus Floor Wash. Citrus juice is also a mild agent to work slightly against insects and cockroaches.

3. Coffee Grounds. Coffee can also be used as natural agent to get rid of cockroaches. Though coffee doesn’t directly kills the cockroaches but only repel them out from house.

natural cockroach repellent: photo

4. Cucumber. Fresh cucumber slices and even its peels can be used as cockroach repellent. Place cucumber in Aluminium foil that you can put at corners or some specified places where you find the cockroaches mostly. Mechanism of all this process is that cucumber will react with Aluminium and will make some toxic stink to kill cockroaches.

5. Garlic. Garlic can also be used to exterminate cockroaches. This natural stinking agent is also very effective.

how to exterminate roaches with a garlic: photo

Anyway, to keep roaches away your home you must remember that cockroaches are among those insects which instead of living in lawns and greenery love to live indoor with human though humans hate to live with them. This war is not only restricted to living areas, but there is a common fight for few food resources as well.

You must remember that cockroaches normally live in warm and humid places that’s the reason they are quite visible and in great number while in summer season. We cannot see them in daylight until and unless they are great in number. But during the night time they are so active and move here and there daringly. Few targeted places where cockroaches love to live and create problems for us are:

  • Behind the sink or seat in bathrooms
  • Beneath stoves and refrigerators in kitchen
  • Behind the curtains
  • Behind the permanently open doors and windows
  • In cracks and crevices
  • Lobbies and stores.

Cockroaches, including American cockroaches ( a.k.a palmetto bugs), and all other household insects are source of different diseases like allergies, infections, etc. So it’s better to try to keep them away from your house.

cockroaches & diseases

These insects carry bacteria and other diseases causing agents. You should be attentive because the droppings, saliva and shed parts of the cockroach skin are proved to be an important cause of asthma.

3-Step Extensive Cockroach Prevention 

While all methods discussed above are efficient and fast, remember that prevention is always better than cure. The following steps will ensure permanent cockroach pest control in your house:

  • Cut the food: Yes, this is why cockroaches breed. Be meticulous in the cleaning process of your kitchen. Scrape and scrub thoroughly. All bits and crumbs of food should be wiped away.
  • Scrutinize your drainage: Cockroaches breed in moist dark places. Pouring drain opener or similar cleaning agents kill the cockroaches, or at least prevent them from breeding. Fix any leaks that your pipes might have.
  • Vacuum cleaner is your best friend: A vacuum cleaner is indeed a strong ally in your battle against the Cockroaches. Vacuuming the tiles and carpets ensures that any neglected food particles get cleaned up.

Do you really want to avoid cockroaches?
If you don’t want the cockroaches anymore at your home, then look for any cracks and holes in the floors and cabinets. If you find any, simply fill them up with waterproof putty or silicone gel. Both are water resistant and long lasting. This will ensure that even if there is some presence of cockroaches in such cracks, they will not come out at all.

Thus by eliminating these factors we can create an inhospitable environment for their propagation. No matter where you live and how clean your living area is, still there is a chance to have a cockroach problem. We all are well aware of the fact that cockroaches are nasty pests. Hence, no one of us ever wants to have a single one in the living area. 

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