A paper predatory mite sachet hanging from a stem deep inside a houseplant's leaf canopy, shaded by the surrounding foliage

Slow Release Is a Placement, Not a Product.

Hang the same sachet on a bench instead of in the canopy and you have bought a different product — one that empties in a week and stops breeding. Where to put them, how many you need, and why nobody in the trade will tell you how many mites are actually in the box.

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Hands tipping a bottle of pale granular carrier over the dark soil of a houseplant

Shake, Sprinkle, Wait. Mostly Wait.

Soil mites are sold by the thousand and applied by the tablespoon, which makes it hard to know whether you've used enough. Here's where the numbers come from, how they convert into pots, and what the first month should look like on a sticky card.

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