The Environmental Factor Nematodes Organic Insect Control Pot Popper, Controls Fungus Gnats, Root Aphids & Western Flower Thrips - 100% Pesticide free, 8 Infusion Bio-Pouches Per Popper

These worked great and I believe they are high quality. They were super easy to use and definitely helped to control pest and improve plant health. Great value for the money

I love indoor plants but hate the gnats. I tried all these natural, stuff you have in your cupboard stuff. The first thing was H202 ( hydrogen peroxide). I mixed it with water, I poured it full strength into the soil, I set out bowls. Nope. Not effective. I used a spray bottle of straight rubbing alcohol. It didn't hurt the plants and there was a certain satisfaction in seeing the gnats try to swim out of the liquid. It only works on the surface though. I put a layer of sand 1" deep over all the soil in every pot. Nope. I tried "earth" (Diamateous powder). Nope.So one day I got to thinking. How do floral shops and garden centers keep fungus gnats away? I googled it and came up with nematodes. They eat the fungus gnat larvae. Hmm. So I bought this stuff. By this time I had tossed out a few plants that were looking sickly due to the gnats so the infestation wasn't as bad. But still there is nothing more annoying than a single gnat flying around your head and landing in your nose. I noticed that one plant had a couple of gnats flying on the surface so I put some nematode stuff into the top of the soil and watered the plant. For a week afterward if I saw a gnat I would hunt down the plant it was after and do the same process. I re-potted some plants and mixed just a little in the soil. It's been about two weeks and I seem to have won the battle. This nematode stuff is a miracle.

UPDATE: These nematodes worked at first but unfortunately after a couple of weeks the fungus gnats were back so clearly they did not have enough nematodes to eat all the fungus gnat larvae. I followed the instructions to the letter. I had two packs on one plant which has a pot that is about 8 inches in diameter and one pack each on my three other plants which have pots that are 5 inches in diameter. The plants are all in the same room and are the only plants in the house and they reside in a room in which the door is always shut. I did two applications, 5 days apart, making sure to give them a little water each day to keep them moist. In between the applications I had the nematodes stored in the refrigerator (as you're supposed to do). I've had to place an order for Scanmask Beneficial Nematodes, which I've used twice previously and in those cases the fungus gnat problem was eradicated quickly and permanently. These were cheaper and I have such a small amount of soil that needs to be treated so I figured I would try these. Too bad it ended up being a waste of money.ORIGINAL REVIEW:I bought a few indoor house plants recently and they were infested with fungus gnats. I put one pack of the beneficial nematodes on each plant and watered the packet and the fungus gnats were gone within two days. I tried to kill as many as I could see flying around after installing the packets. I picked the packets up off of the soil after 5 days and noticed the packets were empty so clearly the nematodes migrate from the packet into the soil after being watered.I had purchased beneficial nematodes twice previously from Amazon many years ago and they came in a Styrofoam cup mixed in with soil. The advantage of having them shipped in soil is you can spread them over many more plants. For my purposes, the nematodes in these little packets packaged inside of a plastic "egg" was convenient as I only had four plants that needed attention. If you have more plants you will probably want to find nematodes that are shipped in a container with soil so you can apply a small amount to each plant. The nematodes are very efficient and really wipe out the fungus gnat larvae quickly as long as they're alive when you get them.

Like other reviewers, I had a gnat problem (mine were brought in to my apartment through two bags of soil that had been outside) and it was driving me mad.I tried cinnamon sprinkled on the surface, mosquito bit tea made from mosquito bits and hot water, yellow sticky traps, hydrogen peroxide. While those may have done some damage to the gnat population, nothing has killed more off than these. I bought two balls, each containing 8? packs of nematodes.Following the directions, I placed 3 (one per 5 gallons of soil- I definitely used more nematodes)on top of the soil and kept them moist for 3 days. I did notice a bit of a difference but still some were popping up on my monitors as I worked from home. I then buried three new ones, along with the other 3, maybe an inch or so under the soil and waited 5-6 days and then realized there weren’t any gnats flying into my face or on my monitors. I haven’t found one floating in coffee or buzzing around the sink in a few days.Overall very impressed as these saved my sanity against the fight of killing fungus gnats.The brand of sticky traps I ordered came with two little shovels, so used those to get the nematode packets under the soil.

This product has not been available for a while. Now they are available, smaller. I’ll use them while looking for other fungus gnat control. Just disappointed in the size—each packet looks as it has been in use for a couple of weeks.

This was the answer!! After battles of sand on the top soil, purchased zero bug zappers, hydrogen peroxide, apple cider vinegar, this finally did it!!! I repotted twice while those gnats climbed up my nose. Not an insect in site. A miracle!!!