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Do encapsulated S. feltiae nematodes really stop fungus gnats at the source?
Yes, because they target the larval stage living in the potting mix, which is the stage that damages roots and produces the next wave of flying adults. They’re unique because they actively hunt in thin moisture films and infect larvae from within, so success depends on matching them to soil-stage pests and maintaining a briefly, evenly moist root-zone surface after application.
Reviews are submitted by verified customers after purchase. This section shows a summary of product feedback rather than the full individual review list.