Are Pests Repelled By Hot Peppers?

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Research has shown that using hot peppers in repellents can deter the onion fly from laying eggs and reduce the growth of the spiny bollworm. A highly effective mix can be created from fresh, dried, or hot pepper powder and flakes, with garlic added for even stronger deterrent properties. Hot pepper spray is a proven, natural pest deterrent for gardens, and it is inexpensive and effective.

Hot peppers repel a wide range of garden pests, including spider mites, cabbage looper larvae, aphids, ground squirrels, and rabbits. Red pepper flakes are an all-natural, non-toxic solution safe for people, plants, and animals. However, not all pests can be deterred using hot peppers. For home use, hot pepper can be used to deter raccoons by spreading it in areas they visit frequently.

Capsaicin, a compound found in hot peppers, has antimicrobial and pest-fighting properties. Scientists have researched for years to find the right hot pepper to prevent animals from eating crops but have not found a perfect one. Capsaicin has some antimicrobial and pest-fighting properties, but to consider it good, one must have used them for years.

To create a homemade repellent hot sauce, blend extra peppers with water and spray the solution on wood. However, chilli fruit has little effect on insects, but the leaf and stem blended up as a spray can be fatal. Epazote or Tagetes minuta spray is more effective.

In summary, hot pepper spray is a natural deterrent for unwanted animals and pests in plants and garden areas. It contains capsaicin, which gives hot peppers their heat and acts as a natural deterrent to many pests, including insects and small mammals.

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What Spice Keeps Pests Away
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What Spice Keeps Pests Away?

Cinnamon is not just effective against ants; it also repels a variety of pests including cockroaches, spiders, fruit flies, rats, wasps, earwigs, silverfish, mosquitoes, and bed bugs. The strong odor of cinnamon acts as a natural repellent, and inhalation can be fatal for some insects. Using kitchen staples can deter common garden pests—cinnamon, along with sugar-free vanilla extract, is particularly effective.

Fabric softener sheets, containing the compound linalool, can also reduce pest populations quickly, as many insects detest the scent. For ant problems, ground cinnamon can be sprinkled in soil, although it won't eliminate bedbugs—instead, it redirects them away from your home.

Natural alternatives to toxic pest control include herbs and spices typically found in kitchens. Vinegar is another versatile option, with strong cleaning properties and a scent that many pests dislike. Aside from cinnamon, spices like paprika, garlic, and ginger can effectively keep ants and other insects at bay when sprinkled around doors and windows. Thyme is known to deter mosquitoes and various pests, while aromatic herbs like sage, mint, and basil repel multiple insects.

Overall, while eliminating pests can be tough, using the right herbs and spices from your kitchen can serve as effective natural repellents, helping to keep your living spaces clean and pest-free without resorting to harmful chemicals. Spices and herbs not only enhance your dishes but can also provide an organic solution for insect issues.

Does Spicy Food Keep Bugs Away
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Does Spicy Food Keep Bugs Away?

Incorporating chilies into your diet can serve as a natural mosquito repellent due to capsaicin, a compound mosquitoes dislike. Lemongrass, rich in citronella oil, is also effective against these pests. Besides chilies, other foods like garlic, onions, and cinnamon may help repel mosquitoes. Hot peppers are particularly potent, providing not only heat to dishes but also acting as bug deterrents. While consuming raw chilies is the best option for mosquito repulsion, alternatives such as cayenne pepper can also serve as insect repellents.

Additionally, enjoying meals in breezy locations can further minimize mosquito bites. Research indicates that spicy foods can make your scent less appealing to these pests, enhancing your protection against bites during outdoor activities.

How Do You Make Hot Pepper Animal Repellent
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How Do You Make Hot Pepper Animal Repellent?

To create an effective homemade pepper spray for repelling unwanted garden animals, begin by mixing 1 tablespoon of cayenne pepper or hot sauce in a quart of water, and add a few drops of dish soap to enhance adherence. Spray or sprinkle this mixture around pumpkins, reapplying every few days or after rain. An alternative recipe involves combining 2 tablespoons of powdered red pepper into 1 gallon of warm water, leveraging capsaicin— the active component in cayenne peppers that deters all mammals except humans.

This homemade repellent is versatile and can also act as an effective insect repellent or even an natural insecticide, making it ideal for organic gardeners. To create a garlic-infused variation, blend water, white vinegar, cayenne powder, and hot sauce, allowing it to rest overnight before straining and adding dish soap. For a more concentrated solution, simmer chopped hot peppers and garlic for 10-15 minutes, allowing the essential oils to be released.

Other ingredients can include crushed red pepper flakes and Castile soap, enhancing the repellent properties. This homemade hot pepper spray not only protects plants from critters like rabbits and raccoons but is also safe for pets and beneficial insects, making it a fantastic choice for maintaining a natural garden ecosystem.

Does Hot Pepper Deter Squirrels
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Does Hot Pepper Deter Squirrels?

Hot peppers contain capsaicin, a compound responsible for their heat, which is effective in deterring squirrels and other mammals from bird food. This compound is often added to bird feed to repel unwanted creatures like raccoons. Numerous birds can tolerate hot pepper products, while squirrels tend to avoid them due to their sensitivity to the compound. Squirrels, deer, and rabbits can damage gardens by consuming plants and bird feed, prompting the use of hot pepper sprays made from cayenne, chili, or jalapeno peppers. The strong smell and burning sensation of capsaicin repel squirrels, making it a practical solution for keeping gardens safe.

Experts claim that capsaicin-based products serve as effective animal and insect repellents, as squirrels react negatively to it. While birds lack a sense of smell or taste for capsaicin, squirrels certainly do, allowing gardeners to use hot pepper as a protective measure. Various methods such as spraying plants or sprinkling cayenne pepper around garden perimeters can help deter these rodents. However, results may vary; some reports suggest effectiveness while others note ongoing squirrel presence.

In studies, hot pepper application consistently showed about 80% effectiveness in deterring squirrels. Nonetheless, the outcome can depend on the hunger level of the squirrels and their resilience against capsaicin exposure. Keeping hot pepper solutions handy can bolster defenses against these pesky garden invaders.

Does Pepper Spray Work On Plants
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Does Pepper Spray Work On Plants?

A hot pepper spray for plants is an effective way to minimize pest damage in your garden. To create your own pepper spray, you can use black pepper or mix half a teaspoon of ground pepper in warm water, then transfer it into a spray bottle. Spritz this solution on the leaves of vegetables, fruits, and even birdseed to deter pests. Alternatively, fresh peppers can be chopped and combined with water and a few drops of dish soap for a similar effect.

However, it's important to note that the spray must be ingested by animals to work, making it less effective as a deterrent alone. For a more comprehensive solution to keep animals away, consider odor-based repellents using ingredients like dried blood, garlic, cloves, or cinnamon. Black pepper can also be utilized as a natural insecticide, leaving behind a lingering smell that does not harm plants. While hot pepper spray can repel certain pests, it may not affect all types.

Be mindful that it might harm beneficial insects and won't protect new growth. If critters are munching on your plants, hot pepper spray can be a go-to choice for home gardeners seeking a natural pest repellent. However, exercise caution regarding its impact on friendly insects and potential new plant growth sensitivity. Overall, hot pepper spray presents an option for natural pest control in the garden.

Do Hot Peppers Keep Bugs Away
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Do Hot Peppers Keep Bugs Away?

Fresh hot peppers are known for containing volatile compounds that provide insect-repellent qualities, though drying may reduce these compounds. Nonetheless, dried hot peppers can be converted into natural insecticides by grinding into a powder or infusing in water for a spray. Wildlife can be a joy for gardeners, but animals like bears, deer, and rabbits can damage plants and consume bird feed. A simple solution is to create a hot pepper spray using cayenne, chili, or jalapeno peppers, which include capsaicin, a compound that acts as a deterrent. This method proves effective against certain pests, positioning hot pepper spray as a viable natural repellent for home gardeners.

Using homemade hot pepper spray is not only economical and easy but also safe for plants, pets, and pollinators. The capsaicin within hot peppers can irritate the stomach and respiratory system if ingested in large amounts. For DIY garden bug spray, blending five hot peppers with two cups of water can effectively repel pests like spider mites and caterpillars. Indeed, hot peppers are effective against a broad spectrum of garden adversaries, serving as a natural insecticide and animal repellent. They can deter both insects and mammals such as rabbits and ground squirrels.

Instead of discarding compromised harvests, they can be utilized to create a hot sauce that functions as a repellent while preserving seeds' viability. Ultimately, hot peppers can repel various garden pests effectively, making homemade hot pepper spray a powerful tool for gardeners.

Does Hot Pepper Spray Kill Aphids
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Does Hot Pepper Spray Kill Aphids?

Hot pepper spray is an effective natural solution to combat pests like aphids, cabbage worms, and spider mites. Its active ingredient, capsaicin, found in hot peppers, can kill certain insects upon contact and serves as a powerful deterrent. To create the spray, steep dried chili peppers such as cayenne or jalapeño in water, and be patient as the mixture needs time to develop. When applying, ensure to cover the entire plant, focusing on the undersides of leaves, as adult pests lay eggs in the soil; a 2-inch sand cover after spraying helps. Repeat applications may be necessary for maximum effectiveness.

A homemade solution combining dish soap and cayenne pepper also proves effective, as the soap suffocates pests while the pepper breaks their protective coating. For a potent natural spray, blend 4 garlic bulbs with 4 to 6 hot peppers, then strain and add dish soap for better adhesion. Neem oil and insecticidal soap are alternatives that also target aphids. Introducing aphid predators into your garden can prevent future infestations.

Hot pepper sprays can deter not only aphids but other pests like rabbits, squirrels, deer, and more, offering a comprehensive approach to maintaining healthy plants. Lastly, Spinosad is mentioned as a natural insecticide that effectively reduces aphid populations without harming the plants.

Does Cayenne Pepper Really Keep Squirrels Away
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Does Cayenne Pepper Really Keep Squirrels Away?

Cayenne pepper, rich in capsaicin, serves as an effective natural repellent against squirrels, whether in granular or liquid form. This pepper, known for its medium spice level and deep flavor, can be mixed into birdseed to deter squirrels without affecting birds, as they cannot taste the heat. The specific characteristics of cayenne peppers include their elongated shape, rippled skin, and red color when mature. When squirrels encounter cayenne, the strong smell overwhelms their sensitive noses, making environments less appealing.

The burning sensation caused by capsaicin can disrupt squirrels' scent trails, further reducing their inclination to invade treated areas. To repel squirrels effectively, you can sprinkle cayenne pepper grounds or flakes in garden soil or around the edges of your garden. It's recommended to use a significant amount, as results can vary and may not be foolproof.

Moreover, hot pepper treatments on birdseed can discourage squirrels from eating it, as they have a heightened sensitivity to spiciness. While sprinkling cayenne around plants can help, it’s essential to note that repeated applications may be necessary for continued effectiveness. Despite mixed experiences with its efficacy, many users report that using cayenne pepper is a natural and practical method to keep squirrels at bay, particularly in gardens and around bird feeders. In summary, cayenne pepper, thanks to its active compound capsaicin, is a simple yet potent deterrent against squirrels in various outdoor settings.

Does Hot Pepper Deter Rodents
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Does Hot Pepper Deter Rodents?

Cayenne pepper's intense spiciness can serve as a deterrent for rats due to its irritating effect on their sensitive noses. The compound capsaicin, found in cayenne pepper and hot sauces, is responsible for the spicy sensation and is believed to repel rodents. Although some sources suggest that cayenne pepper can keep squirrels, rabbits, and rodents away, others have indicated that it may not be completely effective. Even with a strong sense of smell, rats may still eat hot peppers, contradicting claims of their deterrent capabilities.

While DIY solutions like sprinkling cayenne pepper flakes or using Tabasco sauce are common, scientific evidence supporting their effectiveness is lacking. Rodents, including mice and rats, can quickly adapt to these methods, minimizing any temporary deterrent effect. Although capsaicin can create discomfort for rodents, allowing them to associate the area with an unpleasant experience, it doesn’t guarantee they will avoid it permanently. Therefore, while cayenne pepper might irritate rats at first, it may not be a reliable long-term solution for rodent control.


📹 Why Hot Pepper Spray Doesn’t Make A Good Insecticide

Many people spray their crops with super hot peppers in an attempt to rid their plants of aphids, spider mites, white flies, or other …


22 comments

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  • I had an issue with tiny white aphids on my lettuce plants last season. Thankfully, that was the only plant they seemed to be interested in. I mostly used the hose to blast them off, but once things started getting out of hand I carefully removed the plant and bagged it and trashed it. Very unpleasant to see 50 -100 bugs crawling over something that I intended to eat.

  • Which to plant: saved seeds or year-old leftovers? I had about half a dozen pepper varieties I planted last season that I definitely want to grow again and I saved seeds from those peppers, generally from the largest, nicest peppers of that variety that I grew. However, in planning my plantings this spring, I found that I still had leftover seeds for those peppers in the 2023 seed packets. Which would you plant this year, the seeds saved in the fall of 2023, or the year older leftover seeds still in the 2023 commercial seed packets? Thanks!

  • I had lots of Japanese beetles last year. I used the traps as well as a bucket of soapy water with an attractant hanging over the bucket. These pests gave my strawberries grief and I did pluck a lot of them off by hand as well. This year I am putting all my plants in a chicken run with netting over the whole thing. I also use shade cloth in the hot summer months. This means I have to hand pollinate, but it is worth it to me. Thanks for the info!

  • I had aphids on my pepper starts from a greenhouse they were too small to blast with water so I used neem oil which moved the aphids from their resting places I then used a headlamp, qtips, and tweezers and removed the aphids and egg pods. I regularly inspect and remove any insects daily and aphids seem to have disappeared altogether.

  • Great article! Leaf-footed and stink bugs seem to bee the biggest challenge here in coastal VA. They like to wait until your fruit is almost ripe then chomp on them. Grrrrrrr! Really challenging to deal with. We don’t use any man-made pest control products, so when they show up it’s a scramble to save the fruit.

  • My biggest pests are slugs and snails. Don’t know what to do to get rid of them. Tried salt and beer traps, but limited effect. Whats best to use please. I live in the NE Scotland so have to grow in greenhouse as too cold outside even in summer lol. I have used slug pellets also scattered on the floor, but they still eat the plants and then the chillies when they fruit.

  • Thanks for very detailed information on the various bugs. We get a lot of tiny spiders on all our nightshades. I used rosemary tea with clove oil but there are so many i could spend all my time spraying. At night these critters are incredibly active. They also attack my Moringa trees. When i shone a light on them i saw many tiny larvae scaling down the web silk like steeplejacks! 😅. No kidding! Any extra tips on dealing with spider mites? P.s. just found your very comprehensive article about spider mites 👍❤

  • I had a problem with aphids but I heard that rabbits will eat aphids – so i was attracting the rabbits to the garden to eat the aphids- when all the aphids were gone the rabbits started eating all my vegetables- so I had to get rid of the rabbits so then read that coyotes and wolves will take care of a rabbit infestation- so I started breeding wild wolves on the property- then I became overwhelmed with wolves that started eating all my chickens after the rabbits were gone- now I’m left with no vegetables and no chickens and a property full of wolves- I read to get rid of the wolves you need to urinate around your property because the wolves will smell the urine and leave- so I did that and now now the wolves left but the urine attracted aphids so my property is completely infested with aphids again – so I need to start the whole process all over again- gardening/farming isn’t for the faint of heart

  • I guess I missed the sites directing people to use hot pepper spray as a pesticide lol. I am so thankful to you, though, for directing me to pyrethrum to help with my white fly issue when neem oil wasn’t working. Plus! It was like Christmas at my house this afternoon when I received my seeds and soil amendments from MIGardner!! I have spent the rest of the evening mapping out my garden based on companion planting and logging maturity dates for fall planting. So much fun! (I’m such a nerd). It was great to receive my order so soon. Thank you! All of my friends and family in will soon know about your seed shop and the ease of ordering from you guys. ✌🏼

  • WOW – this really helped. I just took all the plants that got aphids during the winter that were sprayed with NEEM OIL that my husband mixes up for me, and cleaned them off from the stickiness that the NEEM OIL and APHIDS seem to leave on them. NOW – I am afraid to spray them with the NEEM OIL inside because it gets on my BAY WINDOW where the plants grow, and then I have to dissemble the whole thing and clean the window periodically. I tThank you for explaining this. Unfortunately I already bought 4 bottles of Cayenne Pepper and a spray bottle to make this and now – I will use it OUTSIDE on the trees and barks because we DO need deer repellent. They like to EAT some of your crop, but mostly they like to destroy our trees with their ANTLERS. I guess they ITCH them – they rub the on the tree bark and can obliterate your little trees and severely damage your big ones. So I will keep using NEEM indoors for Aphids, and I HOPE something will get rid of the GNAT-TYPE bugs that fly around my house. THAT is why I want to spray them with Cayenne – to get rid of the bugs that live in the soil. ANY HELP ON THAT?!?!?

  • Thx for sharing! Always love hearing your opinion and tricks. A nursery got me into neem oil a few years ago when I first started gardening, than i seen you had used it so I figured I would try it and it always works wonders! This year those crazy white flies just won’t take a hike though. Lol They destroy a lot of my plants If I don’t get a handle on them right away. I love companion planting, that’s my favorite and love the way it works.

  • To further expand about how we interact with capsaicin, if I recall correctly I remember recently reading something about how it’s not that capsaicin causes a reaction that makes us think it’s hot, which I mean I guess it technically does. But long story short the gist of it is is kept saying isn’t spicy, it’s that capsaicin lowers our mouths tissues resistance to heat the spiciness we feel is based on the temperature of the human body. I could be wrong I could be thinking of something way different I’m not going to Google it I don’t really care I just thought you all should know and cheers

  • I have a 30′ plumeria that I am going to trim. There are thousands of flies around the tree and it’s a nightmare even causing my neighbors problems. It is also swarmed with white flies. Neem oil hasn’t seemed to help but going to try spraying it in the tree hope it helps but it wasn’t helpful on smaller plants and shrubs they just keep coming back

  • I plan on using a garlic/onion/pepper spray with a small amount of soap as a preventative for my houseplants because thrips have a habit of making their way inside my apartment on a regular basis. I like that’s it’s mild enough that I can spray once a week without having to rinse the leaves every time I spray (can probably get away with a rinse once a month). I’ve heard this spray works well as a deterrent and I obviously won’t be eating my houseplants so 🤷‍♀️. I understand the science you are discussing but I also know that insects will naturally avoid certain types of plants, including onions, peppers, and garlic. So they must have properties that are less appealing to them if they are choosing other plants first (my monstera is very prone to thrips just as calathea are very prone to spider mites). So my question is do you think this will work well as a pest deterrent that will keep thrips from choosing my plants in the first place?

  • Thank you for the tip! I have a question – I’ve noticed your beautiful soil for the past several articles. I notice what looks like white pebbles in your soil. What is this? Is it vermiculite? Do you have past articles on how and what to amend soil with (other than compost) to prepare for a fall garden? (or is that even necessary). Thank you!

  • Can you provide some links to the scientific research that proofs your point? How do you know, what tastes aphids feel and what tastes they don’t feel? BTW, capsaicin affects not only taste buds, but can cause serious skin burns, irritate eyes, stomach, intestines etc. The burning sense is not just an illusion, but real chemical effect.

  • I recently gave hot pepper spray a try. I actually seems to be working on the aphids and cabbage moths. I dont think it kills them, but it seems like they have been deturred. I havent found any aphids or grubs since. I suppose it could be a coincidence. Id love to know the circumstantial event. There definitely is something on my potato plant tho. No idea what. They look like clusters of tiny ants or mosquitos. Theyre not the lite green aphids i used to find tho. My only issue w neem oil is i cant make it at home. Im REALLY uptight about buying plastic bottles. Would love to 1 day find a solution.

  • Great information man, thanks a lot. I wonder if suggestions for stuff like essential clove oil (or just clove in general, like ground and soaked in hot water, then strained) fall into the same category. I wonder if there’s actually anything about clove, or mind, or eucalyptus that actually deters or kills insects or if it’s just the oil…. Any insight on that? I guess I’ll lean toward pyrethrin containing sprays? And maybe try and find some spinosad powder too. What are some sprays with the highest pyrethrin content? Wish I could find it as a powder and mix myself. Thanks again.

  • I use a mixture of 1 million scoville pepper extract on the vegetation around my garden, with no fence, to deter deer. I watched two fawns eat some this morning while the mother sniffed and walk away. I went outside to check things out, and the fawns were running full speed in circles around the the yard and me, almost between my legs! Mom a deer was on the other side of the yard looking at “us” in confusion.😄

  • The only misinformation here is this notion that people say to use hot pepper spray for insects. It does work perfectly for pests such as squirrels and rabbits which is what any person with half a brain knows. Also you dont have to spray. Slicing up a few ghost peppers and scattering them around the garden doesnt effect the taste of your crops and keeps pretty much everything away.

  • “Understand what you’re spraying, how you’re spraying, and how it works” — can that be a bumper sticker?!! P.S. Love the mini entomology lecture. I have heard similar misconceptions about capsaicin’s effectiveness against food pathogens such as Salmonella and Listeria — people think that just because something is antimicrobial, that it will equally affect all microbes. But Capsicum’s various tasty compounds really evolved to target microbes that would inhibit its own fitness (Fusarium etc), so they would not necessarily be as effective against human pathogens such as Salmonella or Listeria spp.. Not to mention that capsaicin doesn’t even deter humans (in fact we’ve cultivated it), so why would it deter insects, who eat all sorts of things that we find unpalatable? There are probably insects that are not only adapted to eating it, but are making themselves less palatable as prey for mammals by doing so. Also if this myth were true, no pest management would be necessary for peppers (wouldn’t that be nice!). Anyways thanks for the article!

  • 1- I dislike the intro (patronizing) 2- I dislike the information (runs against other YouTube experts, and straight up gardners and agriculturalists) 3- I dislike how you illogically present the information (“It’s a wrong, misinformation … oh, ya, it works but … still I’m smarter when I say it … wah, wah) 4- I learned nothing today. Thanks, Karen.

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