Stratiolaelaps Scimitus
At A Glance
Stratiolaelaps scimitus is a robust, soil-dwelling predatory mite that serves as a versatile biological control agent. Formerly known as Hypoaspis miles, these generalist predators are essential for both horticultural pest management and reptile husbandry. They actively patrol soil and substrates to hunt larval pests like fungus gnats and parasitic mites like snake mites. Because they are native to the soil, they are incredibly stable and can survive for weeks without a direct food source by feeding on debris, making them the industry standard for bioactive terrariums and greenhouse prevention.
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Scientific Name: Stratiolaelaps scimitus (aka Hypoaspis miles)
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Best For: Preventing fungus gnats in plants and eradicating snake mites in reptile enclosures.
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Safe For: Plants, humans, and all reptiles/amphibians (non-toxic and chemical-free).
Target Pests
Environmental Needs
Selection Guide
How to Use
How They're Shipped
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FAQ
What is your Live Delivery Guarantee?
We guarantee that your beneficial insects will arrive healthy and ready to work. Because we are shipping live organisms, we use packaging and expedited shipping to ensure their safety. In the rare event that your order is compromised during transit, please take a photo of the package and contact us within 24 hours of delivery so we can make it right.
Can I use Stratiolaelaps with diatomaceous earth (DE) or pesticides?
Will they bite me, my pets, or my plants?
I don't see them moving in the bottle. Are they dead?
Do I need to reapply them?
Can I use them in a sterile setup (like paper towels)?
How do I know if they are working?
Help! I'm overwhelmed
Yeah, it's a lot the first time you're using predatory mites. Please email us at info@fgmnnursery.com and we'll be happy to help!
I don’t see anything moving in my bottle or sachet. Does that mean they’re dead?
Not at all! In fact, go ahead and deploy them.
Predatory mites are microscopic (often less than 0.5mm) and naturally blend into their carrier medium (bran or vermiculite).
- For Bottles: The mites often huddle in the center of the bottle for insulation during transit.
- For Sachets: These are "slow-release" nurseries. The mites stay tucked deep inside the breeding media and emerge one by one over 2–4 weeks. Seeing an "empty-looking" sachet or bottle is not proof of a loss; it is simply how they are packaged for maximum survival.
Mite Matters
The Beetle That Looks Like Its Prey
The larvae of Cryptolaemus montrouzieri look so much like mealybugs that growers routinely try to wipe them off their plants. That's the beetle they just released, eating the pest they paid to eliminate. Here's how to tell them apart — and everything else you need to know before you release the most effective biological mealybug control in existence.
They Started the Moment You Released Them. You Just Can't Tell Yet.
You released the predatory mites three days ago and the spider mites are still there. The nematodes went in a week ago and the fungus gnats are still flying. This is the moment most growers reach for a spray — and it's usually the wrong move, because the beneficials have already started. Here's what's actually happening after a release, and how to read the signs that it's working.
Whitefly Treatment That Doesn't Wear Off
Spraying whiteflies knocks back the adults you can see. It doesn't touch the eggs. The eggs hatch, the nymphs are harder to kill, and three weeks later you're back where you started — except the population is slightly more resistant. Here's how predatory mites and Orius break that cycle by targeting the stages your spray misses.











