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Orders placed by 12pm PST Tuesday, deliver following week Tuesday and Wednesday.

Predatory mites (Neoseiulus californicus)


Neoseiulus californicus are translucent and range in color from pale orange to peach. The nymphs resemble the adults except that they are smaller and cannot reproduce. Their eggs are oblong, transparent and white to dirty-white in color. Adult predatory mites, nymphs and larvae actively search for their prey and suck them empty. All stages of Neoseiulus californicus prefer to eat younger stages of host mites and adult females can consume fifteen to twenty spider mite eggs per day. Neoseiulus californicus can also feed and survive on Thrips and can survive for up to 3 – 4 weeks without food and therefore very good for prophylactic treatments and maintaining low populations of Red Mite and Red spider mite. Neoseiulus californicus tolerates high temperatures and low humidity levels.

Main target

Various species of spider mites 

Additional targets:

Broad, cyclamen, some russet and gall mites species as well as pollen.

BioCalifornicus – The Product
  • BioCalifornicus is shipped in insulated and chilled Styrofoam boxes, packaging must be kept intact until it reaches the end-user.
  • Keep in a cool location 16°C until release; do not put bottles in a refrigerator.
  • Do not place bottles in direct sunlight.
  • BioCalifornicus is sensitive to different pesticides and a Shale Peak Horticulture field service representative should be contacted before any chemical spray.
  • Before use turn and shake the bottle gently to mix the BioCalifornicus with the bran carrier
  • Open the lid of the bottle and sprinkle material on the leaves of the host plants, preferably in a shady area.
  • Each sprinkle/tilt of the bottle disperses 5 to 10 BioCalifornicus.
  • Spread the content of the bottle as evenly as possible throughout the room.
  • During hot days, releases should be done during early morning or late afternoons.

Follow Up

About 2 to 3 weeks after releases, BioCalifornicus mites will be observed in the proximity of their prey mites. Reduction in pest mite population will be noted after establishment of the BioCalifornicus. Dead prey mite eggs and nymphs will also be observed.


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