Treating Spider Mites in Harsh Conditions? This Predator Doesn’t Flinch.
If your grow is hot, dry, inconsistent—or all three—and spider mites or broad mites are settling in, Neoseiulus californicus is your biological first responder.
This mite is tough, fast, and flexible. It feeds across all pest stages, reproduces reliably, and stays active when other predators tap out.
Neoseiulus californicus Bottles
Treatment-Grade Suppression for Spider Mites, Broad Mites, Rust Mites, and More
Each bottle contains live adult mites only—no eggs, no juveniles, no waiting. As soon as you release them, they begin hunting eggs, larvae, and adult mites across a wide range of species.
If you’re already seeing pest activity, this is your go-to for fast suppression under real-world conditions.
Use This Product To Treat:
| Pest | Targeted Stages |
|---|---|
| Two-Spotted Spider Mites | Eggs, larvae, nymphs, adults |
| Broad Mites | All life stages |
| Rust Mites | Best used in outdoor crops and ornamentals |
| Red & Flat Mites | Good secondary suppression |
| Other Plant-Feeding Mites | Flexible predator—feeds opportunistically |
Californicus is one of the only mites that thrives in low humidity and high heat—making it ideal for tents, greenhouses, and field crops that don’t stay stable.
Why Use Bottled Adults?
| Benefit | What That Means |
|---|---|
| Immediate suppression | No egg-to-adult lag time—adults feed on contact |
| Broad environmental range | Survives in 50–105°F and 40–90% RH |
| Full lifecycle targeting | Disrupts reproduction at every stage |
| Persists after cleanup | Can survive on pollen, dust, and debris |
| Versatile application | Use in tents, beds, greenhouses, or outdoor rows |
This is your on-call mite killer when the weather isn’t cooperating and the pest list keeps growing.
How They Work
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Females lay eggs near pest hotspots
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Eggs hatch in 2–3 days
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Juveniles feed + mature in 7–10 days
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Adults feed and reproduce for up to 30 days
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Pest suppression often visible in 2–5 days (depending on severity)
This isn’t passive prevention. It’s full-stage treatment with biological follow-through.
How Much to Use
| Infestation Level | Suggested Dose |
|---|---|
| Light | 5–10 mites per sq. ft. (apply weekly) |
| Moderate to Heavy | 25–50 mites per sq. ft. |
| Large-scale (preventive) | 25,000–50,000 mites per acre |
Reapply every 5–7 days during active infestations. For lasting suppression, follow up with Californicus sachets or compatible predators.
Pro Tips
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Apply at first signs of mite damage—before webbing or bronzing
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Release in early morning or late evening to reduce stress
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Avoid spraying pesticides (even organic oils can kill beneficial mites)
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Follow up with sachets for population stability
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Compatible with Swirskii, Persimilis, and Andersoni for multi-pest control
Shipping & Storage
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Ships overnight with live delivery guarantee
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Use immediately upon arrival
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If delayed, store at 50–60°F for up to 48 hours
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Do not freeze or expose to heat
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
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Most ladybugs don’t fly off out of spite — they leave when the environment isn’t right. Learn how temperature, humidity, and shelter affect whether they settle or scatter, and how to create the ideal setup that keeps them working where you need them most.
Where Did My Predatory Mites Go?
Released predatory mites but can’t see them anymore? Don’t panic. Their invisibility is exactly what makes them effective. Learn why they vanish, how they hunt pests out of sight, and why reapplying keeps your plants protected.