Spidex Vital GO

Spidex Vital GO Sachets (Phytoseiulus persimilis) — Predatory Mite for Spider Mite Control
Spidex Vital GO sachets contain Phytoseiulus persimilis, a proven predatory mite for controlling spider mites. GO sachets are designed for targeted hotspot coverage in early-stage or localized problems. Unlike Boost sachets which are engineered for curative control, GO provides gradual release over several weeks for sustained hotspot suppression. Spidex Vital GO is chemical-free and safe for use in any growing environment including greenhouses, nurseries, orchards, flower beds, interiorscapes, outdoor landscapes, indoor plants including houseplants and more.

Use For
Spidex Vital GO 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 that does not feed on other mites or thrips. It cannot survive on alternative food sources.

Product Specifications
Species: Phytoseiulus persimilis
Pack Size: 250 sachets; each sachet contains ~100 predatory mites
Sachet Type: GO (paper-based)
Presentation: Sachets in cardboard box
Appearance: Sachets with release hole; mites are translucent white upon arrival and turn orange-red after feeding

Curative Note:
Pair sachets with Spidex Vital bottles for widespread, high-pressure spider mite activity. GO sachets provide extended coverage in hotspot zones while bottles deliver immediate knockdown.

How It Works
Mode of Action: Mites pierce and consume spider mites using their mouthparts
Behavior: Mites multiply inside the sachet and disperse gradually over several weeks
Visual Effect: Pest populations decline as mites establish and feed
Release Duration: Several weeks (4 - 6) depending on humidity and conditions
Sachet Type: GO sachet for sustained hotspot suppression

Feeding Rates:
Nymphs and adults feed exclusively on spider mite eggs, larvae, and nymphs
Each nymph/adult consumes ~5–20 spider mites (including eggs, larvae and adult mites) per day under optimal conditions
Feeding life stages last approximately 20 days

Placement Tips:
Hang sachets directly in and around spider mite hotspots
Position close to affected leaves or stems
Avoid direct sunlight or heating pipes
Hold by cardboard strip to avoid damage
Do not open sachets—exit hole is pre-made

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
For pesticide/chemical compatibility details, check our Pesticide Compatability page.

What to Expect
Our Spidex is specially engineered—Persimilis predatory mites typically start out red-orange, but ours arrive to you translucent and develop their signature red-orange color after feeding on spider mite colonies. This color change is a clear visual sign that they’re actively hunting.

• Spidex Vital GO sachets release predators gradually after placement
• Spider mites are controlled as predators feed
• Predators disperse through foliage for several weeks
• Reapply as needed 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