Spraying for Garden Pests (Video)

It’s that time of year again! Now that our gardens are in full swing, the bugs are relishing the menu. Insecticidal soap, made from Dr. Bronner’s Pure-Castile Soap works very well in ridding your plants of these pesky pests.


  • Spray bottle
  • Castile soap (any variety – but there is a chance you’ll taste the essential oils, so you may want to go with the Baby Unscented or Peppermint)
  • Cayenne pepper, cinnamon, or powdered garlic
  • Water

Plant Spray for Bugs

1 Tbsp. (15 mL) in a quart (1 L) of water. Spray plants twice daily, in the cool of the day, until infestation clears.

163 thoughts on “Spraying for Garden Pests (Video)

  1. I have Dr. Bronner’s eucalyptus bar soap on hand. I was thinking about shaving the bars to make an insect spray. Would this be safe to use on vegetables?

  2. Will Dr. Bronner’s soap mixture work on squash and cucumber bugs? What about Japanese beetles? Try to plan ahead and these are always problem bugs in my area.
    Thank you

    • Hi Denise- I haven’t had the opportunity (happily) to use the soap spray on these pests, but some online research says it may work. Can any other readers comment on this??

  3. Does anyone know if the peppermint soap works for wasps? I know wasps do not like peppermint oil. Help please. Thank you.

    • Hi Matthew- I have never tried going after wasps with the spray. Theoretically, it would probably stop them, but again, it would only work when wet, and it would have to be a direct hit. A mist around them wouldn’t be effective. My concern is that in the process of trying to hit them, you might get them mad and riled up, and this method could seriously backfire.

    • I used the dish soap (sorry not Castile), with water and peppermint essential oil. It kills them as it suffocates them and the soap weighs down their wings so flying is minimal, if at all. I have so many that come into my house, I could only relocate some and the rest had a minty fresh demise.

    • Hi Matthew, I agree with Lisa that you could easily infuriate the wasps by spraying them with a direct hit, especially during the day when they are most active. What you want to do is to locate their nest if you can and then target that, just after sunset/early darkness when they have all gone “inside” for the night and are less active. If you need to use a flashlight to see what you are doing, put a red filter over it as I’ve read that wasps cannot see red and thus will not be alerted to what you are doing. You would then spray a good blast of insecticide into the entry hole and hopefully kill all within on contact. Then remove the nest and dispose of it. There is plenty of online advice/methodology on this, along with the suggestion to wear protective clothing. Sorry that this method does not involve Dr. Bronner’s Soap! I have started using the liquid peppermint soap in dilution as an insecticide spray this year and it works quite well, and causes way less “bleaching” and “fading” of flowers and foliage than commercial insecticide soaps do.

  4. Hello!!

    Has anyone tried this with a cannabis grow? Wondering why you chose to use this soap and the outcome.

    I use this soap for pretty much everything else.

    Thank you!!

  5. Have you ever seen it used with hydrogen peroxide to prevent/control mold on flowering cannabis?

  6. Goodness I had no idea it was made 9 years ago.
    Yes a good idea to do a new one Lisa. thanks for your reply.


  7. Can I use this as a surfactant with thuricide to control caterpillars on cannabis

    • Hi Ja ja- The Castile soap won’t harm the plants, but I don’t know if there would be a negative effect on the thuricide, as its a bacteria. Check with a good nursery on this, but if it’s okay to mix the BT with soap, the Castile is a good soap to mix it with.

  8. Hi Lisa!
    What concoction would you recommend making, to treat a black aphid issueon my maiden hair fern? We are new to using the Dr. Bronners castile soap, so only have the baby unscented (because it was the only one in the store with the option to refill) but we love it! I do have other essential oils like tea tree, lavender and mandarin if any of those would help to add? Thanks!

    • Hi Tamara – The unscented Castile soap will be just as effective at eliminating the aphids. Use as directed in the video. For deterrence, I don’t know that those essential oils will particularly help, but if you have 1/4 tsp of cinnamon, garlic powder, or cayenne pepper that can help deter.

  9. Just be very very careful using diatomaceous earth . Use a face mask as it’s so bad if you inhale it, your lungs will suffer.
    Not only that it will kill anything, good or bad bugs, and I bought some believing it be be wildlife friendly, but it’s not at all. So instead of using it in the garden I found it’s good for digestion and take a teaspoon daily.

    • Hi Annette- I’ve become aware of some of these issues since making this video (9 years ago now – wow!). I’m remaking the video this summer and won’t include DE because of its potential side effects.

  10. I would love to know if anyone has used this mixture for Fungus Gnats?

    • Hi Jamie- Yes, the insecticidal soap will kill fungus gnats, but it does have to come into contact with them when wet. The challenge is, they are so quick to fly away at the slightest disturbance. Perhaps other readers will comment with other methods of controlling them.

    • I have about 100 succulents propagatating and all that soil caused an infestation of fungus gnats in my plant room in my house. I looked for any option that worked and most of em don’t. The sticky paper will get rid of em but won’t keep them from coming back. Then I saw a recommendation to sprinkle cinnamon on the top of all my potting mix in the pots and it has made a difference. The cinnamon which is antifungal somehow stops the fungus gnats from invading. My larger plants all have stone topdressing and that helps in itself but now any plant in 4 inch pot or less doesn’t have top dressing and I sprinkle cinnamon on each of their potting mix and I haven’t had an invasion since. I thought I’d mention that.

    • Orfelia and Bradysia species are more a cultural problem, typically poor watering practices.

    • Yes I have and it has helped tremendously. My mistake was thinking I had beat the problem and quitting treatment when there were still ones that’s hadn’t hatched. As of now, I’ve done it every 7 days for 4 weeks on my succulent and houseplants and I don’t see any sign of Gnats now. I’m going to continue 2 more weeks and by then there shouldn’t be any chance of any left to hatch and I’m taking preventive measures too to make sure I don’t get them like I had them before. The soap spray didn’t harm a plant one either. I also added the cayenne pepper into mine too.

    • One more thing, i meant to add. I spray the soap heavy all over my plant prior to watering that way the soap trickles down into the soil it hasn’t hurt anything and I got that trick off pinterest. It helps get the ones in the soil too. I thought cinnamon was the answer and it would of been if I had continued my treatment til they were gone but I didn’t account for lifecylces or the ones not born yet. My mistake and hopefully this helps someone not make the same mistake as me

  11. Pingback: Grow Something!
  12. Aloha from Maui,
    I’m planning on spraying some of my plants with Dr Bonner’s soap.
    Planned on using Pure Castile with Peppermint
    But bought the Hemp version by mistake. Is it OK for the plants and does it work on insect pests
    Looking forward to your response

    • Aloha Diane- You have the right soap there! All of our Castile soaps contain hemp oil. We began adding it in 2000.

  13. Hi, I currently have a problem with thrips in my snake plants and Hoya. I have citrus, lavender and tea tree. I am not sure which one would work best to treat this pest. I know it mentions unscented or peppermint but I don’t have either one. Which one of these three would work. Please advise.


    • Hi Susan- You have a nice assortment of scents there! And any of them would work! It’s the soap, rather than the essential oils, that stops insects by dissolving their exoskeletons.

    • Exactly. The tea tree would also provide some positive effects on possible fungal problems with overwatered plants. It’s really a very good fungicide and one that’s completely nontoxic in this great soap!

    • Getting thrips in Sansevieria and Hoya may be a tertiary result of overwatering and overfeeding. Plants become weakened but those problems and help set up a situation where thrips can thrive. I’d use the tea tree since it would also help with any fungal problems resulting from the stresses.

      3 TBS soap to G of water add 1 TBS of 70% alcohol.

      Better yet 2TBS Peppermint soap and 1TBS of vegetable oil.

      Recipes from my years as horticulture director for The Mirage Hotel

  14. Bonjour depuis quelque mois, j ai des blattes dans la cuisine. J ai mis de la terre de diatomée mais i y a des endroits où je ne peux pas en mettre. Les bestioles ont trouvé que la porte du lave vaisselle c était super confort. Donc votre sulution seraitvellecefficace en vaporisation. Sur et dans le lave vaisselle ?
    Je vais essayer.

    • Hi Isabelle- You can use the Castile soap in a spray bottle for cleaning in, on and around your dishwasher. In fact, the Castile soap will clean up any insect scent trails, crumbs and such. But you don’t want to use it as a dishwashing detergent in your dishwasher. It’s too bubbly for that purpose. Be sure to also seal up any gaps, holes or crevices, including any around wiring or pipes, where pests like to get in.

  15. So many spiders! We live at the edge of a field and woods and cannot keep the spiders off our screen porch.
    We also have several wasps nests. Thoughts? W are new to the products and are excited to discover uses.

    • Hi Cathi – Spiders are more an indication of other, more problematic pests (like bugs on my tomato plants, which spiders eat), rather than being bad in their own right. Except for the black widows and brown recluses, spiders are not harmful. But they are creepy to some and it sounds like you might have an over abundance of them. Spiders, like other critters with exoskeletons, would be killed by contact with Castile soap. And they can be deterred by both mint and citrus. Clean the area periodically with a mixture of 1 quart water and 1 Tbsp. Citrus or Peppermint Castile soap and also rub some peppermint essential oil around your porch. The Castile mixture will only kill them on contact, but the scent will act as an additional deterrent. Regarding the wasps, I have never tried going after wasps with the soap. Theoretically, it would probably stop them, but again, it would only work when wet, and it would have to be a direct hit. My concern is that in the process of trying to hit them, you might get them mad and riled up, and this method could seriously backfire.

    • Hi Laura – Yes, you sure can. The lavender might leave a slight taste on your veggies, so some people choose a more food-y scent like citrus. Thankfully I’ve never encountered blister beetles (knock on wood!), but I know they can be quite destructive to your garden. For these particular pests, I’ve read that adding oil to the spray – which I mention in the video – can be effective. It will take a few applications over several days. As I’m sure you know, wear gloves and long sleeves when you’re treating for these pests to avoid getting blisters. Let me know how it goes.

  16. I have recently found little mite like bugs on my Plumarias. I have used this product on other types of plants and had success. Do you think it is safe to use on the Plumarias?

    • Hi Jackie – Plumeria are so beautiful! I do think it would be safe to use the Castile Soap on them.

  17. Hi, I have a zuchini plant that is starting to look like a lace apron !
    I also have holes in my hostas. I cant see the bugs so don’t know what I am dealing with.
    Will a spray made with Dr Bronners soap make my zuchini taste like peppermint
    if that is the scent I use ???


    • Hi Cathi- I know exactly what you mean by a lace apron look! It’s the soap and not the essential oil that kills the garden pests, so it won’t affect the flavor of the garden goodies you are growing. However, if you want a more “culinary” flavor, you can go with something like Orange or Lavender Castile soap. Enjoy those zucchini!

  18. Just to add, growing broccoli for the 1st time btw, I was told about how nasty boiling worms from the heads was by a customer at a local gh. So after planting I watched daily after 3/4 weeks I giggled to myself bc I had not one bite mark anywhere. Due to life getting a bit nutty for a couple weeks, I didn’t check but 2x a week max. Bam! eat to death in a few days as heads began to show.. Just purchasing Castile peppermint for the 1st time I thought ill try it. Mixed a water soap 2 tea 1 qt water and sprayed the plants all over because I could not see anything…. I thought…. Little worms colored identical green to the stalks started hitting the dirt.
    2 weeks later plus a few more applications… Lovely bite free broccoli… Still awaiting growth to remove head but im thinking if I have to boil maybe much less nastiness will arise from the head.

  19. Thank you for this post – I’ve been spraying the soap spray (1 tablespoon peppermint Dr. Bronner’s in 1 quart of water) on my roses, and it’s really helped with a major bug infestation (without hurting the bees I also have buzzing around my yard!). As you said, the spray has to hit the bug to be effective (no residual effect), so I’ve been spraying every day to get the situation under control. Thanks again, from me & my roses! P.S. Also worked to get ants off of a dwarf citrus tree.

    • Hi Cindy,
      I’m trying to eradicate aphids on my roses and was wondering if this leaves white residue on the foliage? Or if I should simply plan to rinse the plants shortly after … ? I’m new at the gardening game and specifically roses, so I’m super frustrated.

    • Hi Lorraine- I haven’t found it leaves a residue, although it could if your water is particularly hard. If so, use filtered water.

  20. Hello,
    I only have a quart spray bottle.
    What are the exact measurements of Dr. Bronners, Garlic Powder, Olive Oil, etc if only using a quart of water.
    Can I use this on outdoor citrus trees like lemon, lime, satsuma, grapefruits, etc?
    I also have Zuchinni, Spinach and other flowers like Blue Glory Vine, Hidden Ginger.
    Can this solution be used on all these?

    • Hi Jennifer – For a quart bottle, add 1 Tablespoon (15 mL) Castile soap. You can use 1/8 tsp. of garlic or cayenne pepper. I don’t use the olive oil because it goes rancid in the bottle and leaves my plants sticky, but perhaps another reader who does could share their measurements. You can use this on any plant or tree, but it only works if the wet solution comes into contact with the bugs. The residue does not affect them after it dries. It would be pretty difficult to spray a tree thoroughly enough, especially with a quart spray bottle, but if your tree is potted or otherwise small, or if the infestation is pretty isolated, you might be able to treat it this way. Another natural option for deterring crawling insects from getting into your tree is to sprinkle the base with diatomaceous earth.

  21. Will this mixture work to spray on humans to repel the sweat bees?

    • Hi Tracy – No, it doesn’t work particularly as a repellent. It only affects bugs that it contacts while it’s wet. After it dries, it doesn’t have an effect.

  22. Hi, strange as it sounds caterpillars do have exoskeletons. That’s why they have to shed their skins to grow. Caterpillar exoskeletons are very thin because they are largely unsclerotized (sclerotization is the hardening of an insect’s exoskeleton that makes most insects hard-shelled). This is because they are basically eating machines and must be able to expand considerably more than a hard exoskeleton would allow. You can google it.

    • Thanks for weighing in, Victoria! I don’t know enough about this.

  23. Hi, you may have already answered this question, but is this mixture good for herbs? I don’t have a green thumb and have no idea what bugs are eating up my herbs, but I do know I want a natural repellent to take those suckers down. Thanks!

    • Hi Lani – Yes, this would be great on herbs. Perhaps try one of the more foody scents, such as Citrus, just in case the essential oil sinks into the leaves. It would not be harmful at all, but you might taste it.

    • Hi Stefanie – Yes, it would work against thrips.

  24. hi! i love your soap and use it on everything. when looking for a??????? natural solution to killing aphids on my japanese eggplant plant, i saw that i could use the soap in a water solution and was so excited! i also sprayed the plant with water after an hour or so after the solution to rinse the soap off, but it VERY quickly wilted, and not just the leaves but the entire plant- stems and all! it’s been three hours and it seems to be getting worse. what can i do to save it? please help! 🙁

    • Hi Jessica – I am so sorry to hear this and that I missed this earlier. Sometimes too strong a concentration of soap solution can harm a plant that’s already fragile from insect damage. Also, if the spray is applied under a very strong sun it can end up burning the plant. Did the plant recover after a good watering?

  25. Will a Castile soap spray kill or deter lady bugs? I added lady bugs purchased from the nursery to my garden, and I hate to deter them.
    Any input is appreciated.

    • Hi James – Yes, the Castile soap would kill the lady bugs. I wouldn’t use both pest remedies at the same time.

  26. Time for true confessions, folks. It is February 9, 2017, and I have missed several months of comments for the simple reasons that things went a little crazy around here. I very much apologize. I am tackling them now for the sake of those faithful and new readers who might actually read them all. I am going to start with the most recent. Bear with me.

    • Thank you for your care Lisa! Ive had this page/recipe bookmarked for 2 years now. I just came back to make a batch to kill some aphids on my violas. i read through every comment and response to get the most info on making a knockout soap spray. I just saw your last entry not even a month ago and i wanted to say that i really appreciate you coming back and expressing that to those of us who need you and your valuable advice. Positive vibes to you and i hope things are running a bit smoother for you now. We all know how our lives can get crazy. Cheers and Thanks again.

    • Thank you and you’re welcome, Mabelle! As you can see, though, I don’t get to every page often, but I do try to make it around.

  27. Hi, I would like to spray the black ants which are all around the plant, I want to know if the mentioned concentration will affect the plant? I don’t want to kill my plant but the black ants have make the plant as a home.

  28. There’s a video on YouTube with the owner of Boogie Brew is using Dr Bonner’s Sal Sud soap as a pesticide. Which in your opinion is actually better to use. The Sal Sud or the Peppermint.
    Thanks in advance.

  29. wondering about pest control, particularily spiders in the house, got your name from 1001 natural secrets to pest control by Dr. Myles Bader referring to your products such as peppermint oil pennyroyal, peppermint soap, a product called Jungle Rain, cocanut oil and white vinagar to stop cobwebs, he even suggests hedgeapple from the Osage orange tree placed in the affected rooms, even fresh chestnuts placed across any entry point to keep them out. Just wondering your experience with these products for pest control. Thanks Tom

  30. The recipe portion of the page seems to have disappeared – using Chrome browser. This is true for the household cleaning spray page as well. Is it just for me, or is there something gone weird with the page? I can see the post title and date, then down thru the supplies you need, then it’s just blank until the Comments.

    • Hi Jac – There’s actually a video inserted there in which I shared the recipe and I didn’t have the recipe typed out, for some reason. Here it is:
      In a spray bottle combine 1 quart water and 1 Tablespoon soap. This is all I do, but if you want to be fancier you can throw in a couple extras:
      Optional add-ins are cayenne pepper, garlic powder or cinnamon which can all provide additional deterrence. You can also add 1 Tbsp. of vegetable oil so that the solution doesn’t evaporate immediately off the plant, but with the oil, the solution will go rancid more quickly.

    • Thanks, Lisa! Perfect timing for me here in California. Many buggy plants right now. I sure hope it rains soon. I’m glad I rediscovered Dr Bronnee’s. I am SO enjoying all your products!

  31. Will this recipe work on apple trees and apples with out leaving a taste or health effects, but still protect the apples from bugs that seem to bore into the apples this time of year.

    • Hi Bob – The soap solution would have to come into contact with the insects when it is wet. The residue does nothing. So, if you have an infestation where you can see the bugs, the soap will help. If the damage is being done when your back is turned, it won’t. I don’t know what types of pests affect apples, but the soap solution works for bugs with exoskeletons. I don’t know that it would work on any kind of worm or caterpillar. As far as health goes, it is completely healthy and I do not think it would affect the taste of the apples, but perhaps use one of the food-ish scents just in case, such as almond.

  32. Aphids are natures cleanup crew. An indicator that something is out of balance. Typically using liquid fertilizers like Miracle Grow will increase aphid populations. The plants are under some sort of stress usually an excess of nitrogen fertilizer. A critical part of controlling aphids it to also control ants. They will protect the aphids to keep those sugars coming. Aphids excrete sugars.

    3 TBS soap to G of water add 1 TBS of 70% alcohol.

    Better yet 2TBS Peppermint soap and 1TBS of vegetable oil.

    Recipes from my years as horticulture director for The Mirage Hotel

    • Great info! Thank you for sharing!

      Which recipe would you suggest if combining all three…Castile soap, a vegetable oil and alcohol?

      What alcohol is safe and cost effective?

    • Hi, I have just found an ant nest and dont want to use chemicals, which historically have not been super effective, Are you recommening Dr Bronners for the treatment of ants also? I have the rose, will that work too?
      Thanks, I really appreicate the help.

      And lastly, do you know oif Dr Bronners will deal with black spot, leaf curl and other things that effect fruit trees?


    • Hi Kiri- I discovered, when battling an ant issue myself, that the Castile All-Purpose spray (1/4 cup of Castile in 1 quart of water) kills ants on contact. Tea Tree erases their scent trail, reducing the likelihood of other ants appearing in the same area. I haven’t used it on an ant’s nest, but with repeated sprays you may have some success. Here’s my blog post on ants: https://www.lisabronner.com/it-actually-works/. For the treatment of citrus, this is a little bit outside my area of expertise. I’ve heard of some success against black mold by using Castile soap in a Dial N Spray-type sprayer and spraying the tree, followed by a clean water rinse. I don’t have first-hand experience with this though. Leaf curl is caused by many things, including mites, scale, aphids and also overwatering. First, identify the cause. If it’s an insect problem, use the Castile insecticidal soap (https://www.lisabronner.com/spraying-for-garden-pests/). Treating a tree is a big job, so try a handheld sprayer for this. Also, introduce beneficial pests like ladybugs, which eat aphids, mites and white flies. These can be purchased at your local nursery or, believe it or not, online.

    • Thats interesting and you may just be right. I came here because my new Earth boxes that have lovely lettuces in them also seem to have invited aphids. When transplanting this set of lettuce to earth boxes, I used liquid miracle grow to douse the roots in. Yum for the aphids.

      The other boxes I used alo vera water. I have tons of that growing and heard its great to transplant with. I stripped the alo vera plant and took that slimy inside into a juice mixer / blender and added water. Blended it up to a nice slimy water. Like boiled okra. Almost.
      Added to a bucket with more water and soaked my plants as I was trans planting them.
      Plants took to that instantly. They love it. Had no idea.

      But now I’m fighting aphids, not nearly as much on the alo vera planted ones. …. thanks for your suggestions too!

  33. We use Castile soap in a foaming dispenser for hand washing. Recently we’ve been invaded by Japanese beetles. I put about an inch of foam in the bottom of a jar and took it out to the garden and knocked them into it. They were dead before the sunk out of sight. I wondered if mixing into a spray and dispensing onto the plants would be effective? Also I wondered if I could spray this on wasp nests that are built at the peak of my house? And if it would damage my vinyl siding? Any help would be appreciated.

    • Hi Ron – Wow! Great testimonial! A spray of the soap and water would kill japanese beetles on contact, but the residue of it is not an effective deterrent. In other words, it only works when wet.

      Regarding the wasps, I have never tried going after wasps with the soap. Theoretically, it would probably stop hurt them, but again, it would only work when wet, and it would have to be a direct hit. A mist around them wouldn’t be effective. My concern is that in the process of trying to hit them, you might get them mad and riled up, and this method could seriously backfire.

      It wouldn’t damage your vinyl siding, though.

  34. I discovered aphids in my garden several days ago. I tried just blasting them with some water but that didn’t seem to help. After doing this for a couple of days and watching the population just increasing, I did some research and discovered the relationship between those aphids and ants. So I began sprinkling DE on my garden and again water blasting the ants for a couple of days. Again I found the aphid population continuing to increase and spreading to other plants. Thank goodness I found a recipe on YouTube that said to use a 1 gallon garden sprayer with 2 1/2 to 5 Tbsp of Dr. Bronner’s castile soap. I went with the lower soap amount and sprayed my plants. The next day, today, I found more than half of the aphid population gone. We got 2 inches of rain last night so I sprayed again today. I am thinking of adding the cayenne pepper or garlic to keep those leaf eaters off too. Thanks for all you do!

    • Hi there – The soap stops insects by dissolving their exoskeletons. Larvae and caterpillars don’t have this, but I still think they might not like the soap. I can’t give you a definitive answer.

      Can any other readers weigh in here?

    • Since the monarch actually eats the milkweed, I would not put anything on the plant that could leave a residue. The poor things already deal with so much trying to make it to adulthood!

  35. Do any of your products work on fleas? Either on the dog itself, or sprayed in the house or outside? There are so few options other than actual poisons. Diatomaceous earth can help, but who wants it sprinkled all over their house!

    • Hi Mary – Our Pure Castile soaps work very well on getting rid of fleas on animals. The peppermint is usually my go-to because of the naturally deterring effect of peppermint, but any of them will work. Check out my post on washing dogs with castile, https://www.lisabronner.com/washing-the-dog-with-dr-bronners/. I don’t know that the soap will effectively eliminate fleas from carpets and other soft furnishings where they like to live around the house. Even with a carpet cleaner, it would be tough to reach all the nooks with enough heat and soap to kill any fleas and eggs. If you can wash dog beds and blankets in castile soap, that’s a great start. This post may help you with that, https://www.lisabronner.com/dust-mites-and-castile-soap/. Hope this helps!

    • Dr. Bronner’s Pure Castile soap is faster at killing fleas on an animal than any other product I’ve used! I started using it out of our foaming hand soap dispenser to kill the ones I combed off of our cats. The surface tension of the soap combined with the small bubbles seems to trap them pretty quickly and smother them. I’ve experimented with using as small an amount as possible and it’s still effective. II really hate killing living beings but I’ve done the Happy Dance over the demise of these fleas on more than one occasion. I have also bathed our long haired large dog using it and it works so quickly that the fleas don’t even have a chance to run! It does leave her coat dry and I’d think that, with repeated use, it may be drying to her skin. I followed up with a second wash with a conditioning shampoo and a vinegar spray rinse that left her soft.

    • Use food grade DE. SAFE…TOTALLY SAFE for pets and humans. I use it in our pets food to treat for internal parasites.
      Ps. It has health benefits for humans too so I use it too. It must be FOOD GRADE found at any health food store.

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