

🦟 Bye-bye gnats, hello thriving greens!
Gnatrol WDG Biological Larvicide is a 16-pound, OMRI-listed, water-dispersible granule formulation designed for rapid and selective control of fungus gnat larvae in greenhouses and indoor plants. It paralyzes larvae within 24 hours without leaving residue, making it a trusted, eco-friendly solution for professional growers and plant enthusiasts alike.
| Best Sellers Rank | #266,025 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #4,026 in Garden Fertilizers |
| Brand | Valent Professional Products |
| Customer Reviews | 3.8 out of 5 stars 20 Reviews |
| Item Form | Granules |
| Item Weight | 16 Pounds |
| Specification Met | OMRI |
| Target Species | Insects |
A**A
I buy this every year.
We propagate fig trees and grow seedlings indoors. Fungus gnats were always an issue, but if you incorporate Gnatrol (small amounts) with every watering, no gnats ever.
S**O
Less fungas knot but colorful fuzzy molds appeared
I had a quite infestation of fungus knots with multiple house plants pots everywhere in my house. So I needed aggressive solutions than sticky paper to catch the flying knots. As a test, I used 4 pots of different surface/growing media. All of them got fuzzy mold on the surface. One of them even got green, white, and yellow molds!! Great. Now I need to repot them to change the media anyway. I have a whole bucketful of products that I can’t use. Since it is opened, I don’t think it is returnable. It’s very unfortunate. The instructions are not so user friendly. I could figure out but dont expect like “regular round up” from the store sort of instructions. I don’t know what to do with this power that I don’t want to inhale for health hazard or dump outside for creating mold spread.
K**S
Mosquito larvicide
This product works great for eliminating mosquito larvae in plants and waterlogged areas . If you want to minimize or eradicate mosquitos in your yard , try Gnatrol.
A**R
Four Stars
Four 1 tbs per gal treatments applied every three days for heavy infestation
P**Y
Controls but does not eradicate
While it does cut down on the gnats it doesn’t eradicate. I used the whole bucket and have still seen a few here and there. Look elsewhere if your looking for eradication.
P**T
No more Gnats here.
If you got Gnat's here is your solution. Tried once and quickly moved up to a much larger size.
T**S
killed gnats
just as ordered, arrived quickly and well packed product as described and have used it the gnat killer and ti works
M**E
really works
i have tried other products that didn't work and this stuff really got the job done. worth every penny. definitely recommend
Trustpilot
3 weeks ago
3 weeks ago