• Neoseiulus californicus Prevention Sachets - Blessings Grow Meadows -
  • Neoseiulus californicus Prevention Sachets - Blessings Grow Meadows -
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FGMN Nursery

Neoseiulus californicus Prevention Sachets

Neoseiulus californicus Prevention Sachets

$39.10
$46.00 $39.10
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Treating Spider Mites in Hot, Dry Conditions? This Is Built for That.

If your space runs hot, your humidity won’t hold, or your plants are between flare-ups, Amblyseius californicus is the mite that won’t quit.

These slow-release sachets deploy one of the most resilient predatory mites available—built specifically for environments where others stall out. They won’t knock down an active infestation overnight, but they will prevent one from creeping back in when your climate works against you.

Amblyseius californicus Sachets

Spider Mite Prevention for Hot, Dry, Low-Prey Environments

Each sachet releases eggs, juveniles, and adult californicus mites gradually over 2–4 weeks. Unlike fast-burst species like persimilis, californicus works slowly and steadily—even when prey levels are low or conditions get rough.

What It Helps Prevent

Pest Where It Hits
Spider mites (Tetranychus urticae, T. cinnabarinus, etc.) In hot, dry, or inconsistent setups
Broad mites Especially effective under low pressure
Russet mites Good for prevention between outbreaks
Other small pest mites Covers multiple families, especially when prey is sparse


If your grow tent hits 85°F+ during the day, or your greenhouse drops to 40% RH, this is the mite that still shows up for work.

When to Use A. californicus Over Other Mites

Scenario Go With Californicus If...
You’re growing in a hot or dry environment Most other mites slow down—californicus doesn’t
You’ve already knocked down spider mites Use this to prevent resurgence
You’re between pest waves Maintains low pressure during quiet periods
You don’t have high humidity or daily misting Tolerates tough indoor or greenhouse conditions

Not for Active Infestations

If you're already seeing webbing, bronzing, or rapid spread, sachets won’t move fast enough.

Start with:

Then follow up with californicus sachets to hold the line long-term.

How to Use

Setup Application
Single plants 1 sachet per plant
Dense canopy or rows 1 sachet every 2–3 feet
Reapply Every 2–4 weeks based on climate and pest risk

  • Do not open sachets—mites exit through the micro-perforated vent

  • Hang near the canopy, but away from mist lines or direct irrigation

  • Replace more frequently during peak pest cycles or in high-heat zones

Best Conditions

Factor Performance
Temperature Functions from 68–90°F; best above 85°F
Humidity Works better than most in low humidity (40–60%)
Light Suitable under grow lights or natural conditions
Airflow Tolerates drier airflow zones where other mites underperform


This is one of the few predatory mites that continues performing when your grow space looks more like a desert than a rainforest.

Choose Your Brand

Brand Best For
Tip Top Bio-Control Excellent for typical grow tents and nursery cycles
Koppert “Plus” Sachets Optimized for low humidity, dry rooms, and variable emergence timing


Both are packed fresh in the U.S. and contain the same number of mites per sachet.

Pro Tips

  • Use after treatment to keep spider mites from returning

  • Great for seasonal transition periods or inconsistent HVAC

  • Combine with bottles if pressure starts climbing

  • Avoid sprays—even organic residue can reduce release rates

  • Don’t expect visual “results”—this is background suppression, not a visible hunt

Safe for Everything but Mites

  • Non-toxic

  • Safe for pets, people, pollinators, and sensitive plants

  • Leaves no residue

  • No re-entry interval

  • Compatible with living soil and organic systems

Shipping & Storage

  • Ships with live delivery guarantee

  • Use immediately upon arrival

  • Store at 50°F for up to 48 hours if needed

  • Do not freeze or expose to dry air

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