PERSIMILISforce: P.persimilis, Bulk in 5k, 10k & 20k units

Starting at: $39.50

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Quantity Discounts Available Packaging: Bulk


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Phytoseiulus persimilis targets the two spotted spider mite (Tetranychus urticae) in all stages, preferring younger stages. This predatory mite can, reportedly, only survive on two spotted spider mites (Tetranychus spp.).   However, field trials indicate they may also have an effect on carmine red mite T. cinnabarinus, and the Pacific mite T. pacificus.

Application Rate: The introduction rates of this product should be adjusted to the mode of action of the product and the results that can be expected in the crop where the product is applied.



  • turn and shake the bottle gently before use
  • sprinkle material on leaves or pour into application boxes

Environmental conditions: Relative humidity should be greater than 75% and the temperature above 20°C/68°F for some hours of the day. Phytoseiulus persimilis does not enter diapause.

Storage and handling

  • storage after receipt: 1-2 days
  • storage temperature: 8-10°C/47-50°F
  • in the dark (bottle horizontally)


  • Adults: bright red, very active, spherical, stands high on its legs
  • Eggs: oblong, first pink and transparent, later on darker, twice as big as spider mite eggs
  • Larvae/nymphs: pale to light red

Mode of action: Adult predatory mites and nymphs search actively for their prey and suck them dry.

Visual effect: Adult red spider mites that have been eaten change color from brown to black (in tomato) and can be identified as tiny black dots on the leaves. This should not be confused with living, light-brown to dark-red spider mites.

Important!  Only use products that are permitted in your state and crop. Check local registration requirements.  Everwood Farm cannot be held liable for unauthorized use.

All times are Pacific Time Zone
Holiday Shipping Schedules apply to all products.

Orders Processed by 10:00 AM are shipped the following business day, Monday - Wednesday

  • West Coast FOB available by Next Day or 2nd Day Method when conditions allow.
Domestic Shipping Schedule

Will Call pick-up at Everwood Farm:

  • Orders must be processed by 10:00 AM Friday for pickup the following week
  • You must have an active Account to use this method.  Contact Us for details.
  • Model: PERSIMILISforce
  • Manufactured by: Beneficial Insectary

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