Spidex Vital PLUS - 250 Mites per Sachet

Spidex Vital PLUS Sachets (Phytoseiulus persimilis) — Predatory Mite for Spider Mite Control
Spidex Vital PLUS sachets contain Phytoseiulus persimilis, a proven predatory mite for controlling spider mites. PLUS sachets are designed for long-term, preventative coverage in crops prone to spider mite outbreaks. Mites reproduce inside the sachet and disperse gradually into the crop over several weeks. Spidex Vital PLUS is chemical-free, IPM-compatible, and safe for use in greenhouses, nurseries, orchards, flower beds, interiorscapes, outdoor landscapes, indoor plants including houseplants and more.

Use For
Spidex Vital PLUS targets all life stages—eggs, nymphs, and adults—of spider mites, including:
Two-spotted spider mite (Tetranychus urticae)
Other Tetranychus spp. (except Tetranychus evansi)

Phytoseiulus persimilis is a specialist predator and does not feed on other mites, thrips, or pollen. It cannot survive on alternative food sources.

When to Use Spidex Vital PLUS Sachets
Use wherever spider mites are expected or present in crops with recurring pressure.

Recommended for:

Preventative coverage to stop spider mites before establishment
Early-stage pest presence
Hotspots requiring sustained biological control over several weeks
Plants with dense foliage or layered canopy structures where pests hide in leaf folds and undersides
Growers seeking long-term prevention & control

Curative Note:
Pair sachets with Spidex Vital bottles or use Spidex Boost for curative control. In the case of an active problem, Ulti-Mite and Plus sachets work in tandem with bottle formulations to provide long-lasting clean up and prevention against population resurgence. For tall plants or vertical hangers with an active problem, place sachets above and below the hotspot, apply bottles close to or directly at the problem. This dual strategy prevents pest spread and accelerates control.

How It Works
Mode of Action: Mites pierce and consume spider mites using their mouthparts
Behavior: Mites reproduce inside the sachet and disperse gradually over several weeks, sachets produce multiple consecutive generations of predatory mites
Visual Effect: Pest populations decline as mites establish and feed
Release Duration: Several weeks depending on humidity and conditions
Sachet Type: PLUS paper-based sachet; best in stable environments

Feeding Rates:
Nymphs and adults feed exclusively on spider mite eggs, larvae, and nymphs
Nymphs and adults consume 5–20 spider mites per day under optimal conditions
Feeding life stages last approximately 20 days

Lifecycle of Phytoseiulus persimilis
Egg Stage
Oval, pink eggs laid near spider mite colonies
Hatch in 2–3 days under optimal conditions
Larval Stage
Non-feeding
Lasts 1–2 days
Nymph Stage
Begins feeding on spider mite eggs and nymphs
Highly mobile and effective in early suppression
Adult Stage
Actively hunts and consumes prey
Lifespan ~20 days
Capable of laying 5–10 eggs per day under optimal conditions

Release Rates & Placement

Placement Tips:
Hang sachets in sheltered spots, away from direct sun or heat
Hold by cardboard strip to avoid damage
Do not open sachets—exit hole is pre-made
Open shipping box near plants and tear sachets along perforations

Best Working Conditions
Temperature: Active from 55°F to 81°F; optimal range 68–77°F
Reproduction Peak: Fastest at 77°F
Humidity: Optimal at 70% RH or higher

Compatibility Guidance
Allow residues from oils or soaps to dry before application
Do not combine with other generalist predatory mites
For pesticide/chemical compatibility details, check our Natural Enemies - Chemical Compatibility and Beneficial Insect &
Pesticide Compatibility Table

Product Specifications
Species: Phytoseiulus persimilis
Pack Size: 100 or 250 sachets
Mite Count: 250 predatory mites
Sachet Type: PLUS (paper-based)
Carrier: Wood chips
Presentation: Sachets in cardboard box
Appearance: White sachets with release hole; mites are translucent white upon arrival and turn orange-red after feeding

Storage & Handling
Store in the dark at 47–50°F
Provide ventilation to prevent CO₂ buildup
Use within 18 hours of receipt
Do not refrigerate

Environmental Impact & Sustainability
Spidex Vital PLUS sachets support sustainable growing practices by replacing chemical sprays with natural predators. PLUS sachets reduce pesticide runoff, protect pollinators, and maintain ecological balance across growing environments.

What to Expect
Spidex Vital PLUS sachets release predators consistently after placement
Spider mites are suppressed as predators feed
Predators disperse through foliage for several weeks
Reapply based on scouting observations to maintain control and prevent resurgence

Recommended IPM Pairings
Horiver Yellow sticky traps for flying pest monitoring
Neoseiulus californicus for broader mite suppression
Isarid Mycoinsecticide for knockdown in high-pressure zones
Spidex Vital bottles for hotspot coverage
Feltiella acarisuga for layered spider mite control

FAQs
Does Spidex Vital PLUS contain adult mites?
Yes—sachets contain a mix of life stages, including adults, juveniles and eggs.

Is Spidex Vital PLUS safe for indoor plants?
Yes—completely safe for people, pets, and plants, making it ideal for use in enclosed environments like homes, offices, herb gardens and interiorscapes.

How soon will I see results?
Feeding starts immediately. Control builds quickly as predators move through affected areas.

Can I use this on tomatoes?
No—Spidex Vital PLUS is not recommended for tomato crops. Use Spidex Boost or Neoseiulus californicus sachets instead.

Does Spidex Vital PLUS feed on other pests?
No—Phytoseiulus persimilis is a specialist predator and feeds only on spider mites.