Got Thrips or Whiteflies? This Is the Treatment That Doesn’t Wait.
If you're seeing silver streaks, distorted new leaves, or clouds of tiny white insects, your plants are dealing with a soft-bodied pest outbreak. Thrips. Whiteflies. Russet mites. Broad mites.
Amblyseius swirskii is your next step.
Swirskii Predatory Mites (Bottled Adults)
Immediate Biological Treatment for Thrips, Whiteflies, Broad Mites, and Russet Mites
These live adult predatory mites go to work the moment you release them—no eggs, no juveniles, no waiting. If you’ve got an active infestation, this is the fastest way to biologically suppress small soft-bodied pests without chemicals.
Use This Product To Treat:
| Pest | Targeted Stage |
|---|---|
| Thrips (Frankliniella spp.) | Larvae |
| Whiteflies (Bemisia, Trialeurodes) | Eggs and larvae |
| Broad mites | All life stages |
| Russet hemp mites | All life stages |
| Cyclamen mites | All life stages |
If you’re already seeing visible pest damage or population spikes, bottled Swirskii provides rapid, targeted treatment where sprays and sachets fall short.
Why It Works for Active Infestations
| Feature | Benefit |
|---|---|
| Immediate feeding | Adult mites begin hunting within minutes |
| No ramp-up period | No need to wait for hatching or population cycles |
| Treats multiple pests at once | Thrips, whiteflies, broad mites, russet mites, and more |
| Compatible with humid or warm setups | Ideal for tents, greenhouses, and indoor grow spaces |
| Invisible but effective | Swirskii mites are ~0.5mm and hide in canopy zones |
How to Apply (Treatment Mode)
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Gently rotate the bottle to evenly distribute mites in the carrier
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Sprinkle directly onto infested foliage, canopy gaps, or substrate
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Avoid overhead watering or foliar sprays for at least 12 hours post-release
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Release early or late in the day to avoid midday heat stress
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Maintain temps between 68–96°F with moderate to high humidity
Note: Swirskii cannot survive freezing temps. Keep indoors or in protected spaces during winter.
What to Expect
| Timeline | Activity |
|---|---|
| 0–3 days | Adults begin feeding and suppressing pest populations |
| 2–3 days | New eggs hatch if mites lay |
| 7–10 days | Mites mature to reproductive adults |
| 20–30 days | Full active lifespan with ongoing reproduction |
Most growers see visible reduction in pest numbers within 2–5 days.
Dosage Recommendations
| Scenario | Rate |
|---|---|
| Light infestation | 5–10 mites per sq. ft. |
| Moderate–heavy | 25,000+ mites per active zone |
| Large-scale or greenhouse use | 25,000+ mites per acre |
| Post-treatment follow-up | Add Swirskii sachets for prevention |
Pro Tips for Treatment Success
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Use immediately at first signs of damage
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Avoid recent pesticide or oil-based spray applications—residues kill mites
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Combine with Orius insidiosus to control adult thrips as well
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For long-term protection, follow up with Swirskii sachets
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Swirskii can also help clean up hotspots where other predators fall short
Safety & Compatibility
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Safe for all edible and ornamental crops
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Non-toxic, residue-free, and zero re-entry interval
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Compatible with IPM and organic systems
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Will not harm pets, people, or pollinators
Shipping & Storage
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Ships overnight with live delivery guarantee
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Use on arrival
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If needed, store for up to 24 hours at 50–60°F
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Do not freeze or overheat
FAQ
How does the Live Guarantee work?
We know how important it is for your mites to arrive healthy and ready to work. That’s why we offer a live arrival guarantee—with flexible options depending on when we hear from you:
- Let us know within 24 hours of delivery: We’ll gladly send a free replacement shipment.
- Let us know within 2–3 days of delivery: We can offer store credit to make things right.
- After 3 days from delivery: Because these are living organisms, we’re not able to offer replacements or credit beyond that window. By then, it’s harder to know what went wrong or whether shipping conditions were a factor.
We truly want your mites to succeed—so please open your package as soon as it arrives and check on them. If something doesn’t look right, don’t wait—reach out and we’ll take care of you.
Where are you located?
We have a number of different locations in NJ, Maine and Oregon. While we'd love to have you, we are not currently open to the public.
Can I call you?
We get it. Sometimes it's easier to talk to someone, and on a case by case basis we can try to figure it out. Unfortunately though, we're really not able to take calls—FGMN is a small nursery, and we're usually elbows-deep in plants or packing boxes. To make sure nothing gets missed (and everyone gets a timely reply), we keep all communication in writing.
Feel free to message us at info@fgmnnursery.com. We mostly respond quickly, but every once in awhile replies may take a day. Do follow-up if you don't hear in that time. We're human, we miss an email here or there.
Too Many Options?
We get it. Try our mite/insect matchmaking quiz and instantly get matched to the solutions you may need.
Our Live Delivery Guarantee
We stand behind every leaf and every mite. If your plant or predatory insects don’t arrive alive on the first delivery attempt, we’ll make it right.
Here’s what you need to know:
- Email us at info@fgmnnursery.com within 24 hours of delivery
- Include clear photos of the item and the shipping label
- Someone must be available to receive the package—plants and bugs don’t do well sitting in the sun, a mailbox, or the back of a delivery truck
For plants, we offer store credit if something goes wrong.
For predatory mites and beneficial insects, you’ll have the choice of a replacement shipment or store credit.
If you contact us after the 24-hour window, we may still be able to help—just know it’s handled case by case.
We pack with care, insulate when needed, and check the weather before shipping. But once it’s in transit, the fastest way to protect your order is to open it right away.
Mite Matters
Thrips Don’t Stand a Chance (If You Start Here)
Thrips are tiny, annoying, and almost impressively destructive. This article takes a closer look at Orius insidiosus—the predator that hunts adult thrips—and explains how to use it as part of a long-term control strategy.
How to Treat Thrips on Plants the Right Way
Thrips may be tiny, but their impact is anything but small. These slender insects scrape open plant cells and drain them dry, leaving silvery scars, curled leaves, and sometimes even viruses in their wake. Because their life cycle spans both leaf and soil, single treatments rarely work. Instead, managing thrips requires a layered approach: mechanical suppression, targeted sprays, and—most effectively—beneficial predators that disrupt every stage of their development.
