






🌱 Protect your plants the natural way — because your green space deserves the best!
Sierra Natural Science SNS-209 Systemic Concentrate is a 16 oz organic, water-soluble pest control solution that uses botanical extracts, including rosemeric acid from rosemary, to create a systemic barrier inside plants. It effectively deters and eliminates common pests like spider mites, thrips, scales, and fungus gnats while being safe for pets, children, and the environment. This EPA-exempt, biodegradable formula offers consistent potency through in-house processing and integrates seamlessly into your plant care routine.











| Best Sellers Rank | #5,996 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #24 in Insect & Pest Repellent Spray Concentrates |
| Brand | Sierra Natural Science |
| Customer Reviews | 4.3 out of 5 stars 174 Reviews |
| Item Form | Spray |
| Item Weight | 16 ounces |
| Liquid Volume | 16 Fluid Ounces |
| Target Species | Insects |
| UPC | 810096034199 |
C**A
Great for fungus gnats
I bought this to use for my indoor houseplants. I had a bit of a fungus gnat problem but wanted something more pet/child friendly. This checked all the boxes. Used as instructed and has helped eliminate my fungus gnat problem, it was slower than most traditional systemic but it was a good alternative to using a harsher systemic in its place, it was a worthwhile trade off. Pretty easy to follow instructions and it worked really great for me. Hoping to use this longer term as a good prophylactic treatment to prevent any future pest issues
D**E
It works!
Battling pest that move into/onto your plants, especially when housebound in the winter had become a problem. I recently started using this SNS-209 Systemic Concentrate when watering all of my plants. I like the fact that it is an organic systemic pesticide that will work on spider mites, scales, thrips, and fungus gnats which makes taking care of a large collection of plants easier. It has a pleasant smell, is safe for my dogs and does the job!
H**M
Finally, something organic that really works
Works great. I've been searching for years for an organic pesticide that works on fungus gnats, white flies, scales and thrips. Neem oil and dead bug work somewhat for somethings but this absolutely eliminated them all (been using for 1 year). At first I thought it wasn't working but it takes about 5 waterings (once a week root drench) and they disappear. I stop after 5 weeks and only use it if I see an infestation starting. When I had a heavy infestation, I used an initial foliar spray of dead bug and initiated the root drench cycle. I have some potted plants outside and it seems to deter reinfestation for about 3 months.
S**E
I think it’s working
I thought this was working great to control spider mites on my house plants. I noticed it was killing them off. However, a few of the affected plants seem to still have mites. The bottle will last a very long time making it a great value for the price.
J**.
Safe systemic for indoor houseplants
Takes a long time to work. I use it prophylactically now. For active infestations, I would use a different systemic. However, this one is truly organic, OMRI certified, and safe for pollinators and hummingbirds.
N**D
Highly recommend
Super pleased that I followed somebody’s recommendation. I have been dealing with mealie bugs for 6 months. This has done a fantastic job in eradicating them. I will never be without them in my plant supplies.
J**E
Don't Get Taken in by the Pouch
I am giving this 3 stars because I still use the product. My problem is with the packaging. The pouch clearly says concentrate, but the dosing instruction are no different on the bottle compared to the pouch. 1 $12.00+ pouch makes 5 gallons. 1 $21.00+ pint bottle makes 60 gallons. So it isn't any more concentrated than what they already offer. It just in a smaller quantity that costs way more per ounce. Careful when making your selection.
M**E
Safe for my plants and pets
I add this to my fertilizer when I water my plants. I have over 300 plants, mostly anthurium and alocasia. I feel confident that this helps keep them safe from spider mites and thrips, but it’s safe for my pets too.
Trustpilot
1 day ago
3 days ago