Kills larvae and pupae within 2-5 days for rapid pest elimination
Self-replicating nematodes continue controlling pests underground after application
Safe for plants, humans, pets, pollinators, and beneficial insects
No residue, odor, or re-entry restrictions for clean, convenient use
Easy-to-mix powder dissolves quickly for even application
Summarized by Shop
The fungus gnat answer. Steinernema feltiae are microscopic roundworms that hunt in the water film between soil particles, tracking larvae by carbon dioxide and vibration, entering them through natural openings and killing them within a day or two. Where a predatory mite works the top layer of the pot, these go wherever water goes — which
Application Method
Powder
Active Ingredient
Steinernema feltiae nematodes
Application Rate
5 million nematodes per 1000 sq ft (preventative), 5 million per 100 sq ft (moderate/heavy infestation)
I was amazed. I had to leave town on a family emergency the day I received my nematodes. So I followed the directions, mixed with a gallon of water and fed it to 10 plants. Some were severely affected. I left town for 2 days and when I came back, there was marked improvement. Plants that were stunted and yellowing had already turned around. I love this product. Thank you. I've been fighting these knats for a long time.
S
Sheree · 12 days ago
Little wonders!
I've used nematodes on houseplants previously and was amazed by how well they work. Got these little guys, mixed them up, and about 8 days later the infestation is under control. I was worried b/c my kid put the package in the freezer, not the fridge, when it was delivered. I caught it quickly and they must not have been any worse for wear.
E
Emilie · August 27, 2026
Very excited about using nematodes for the fungal gnats we’ve been living with for 8 months.
Company was wonderful. Great, timely, and fun communication.
Package came as expected.