Neoseiulus californicus

Amblyseius californicus predatory mite


Neoseiulus californicus is a predatory mite used to control spider mite and broad mite species in ornamental, fruit, vegetable and cannabis crops. It also considered a generalist and can attack thrips and other invertebrates.

The adult is pear-shapped with long legs and measures 0.5 mm. N. californicus adult is translucent orange-beige and look like Neoseiulus fallacis. The eggs are round, transparent and measure 0.05 mm in diameter. Nymphs (juvenile stage) look like adults except that they are smaller.

N. californicus develops faster when consuming the two-spotted spider mite. it can also eat pollen, thrips and other small insects, but its reproduction will be slowed down with this diet. This predatory mite is particularly voracious and can attack other biological control agents such as Neoseiulus cucumeris or Phytoseiulus persimilis nymphs and eggs.


For the commercial market only.

Targeted crops

  • Cannabis
  • Fruits
  • Ornementals
  • Cucumbers
  • Tomatoes

Targeted pests

  • Spider mites
  • Broad mites
  • Thrips
  • Other invertebrates

Life cycle

  • The optimum conditions are a temperature between 16 and 32 °C and a relative humidity between 40 and 80%.
  • Life cycle last approximately 7,5 days at 25°C
  • A female lays 4 eggs a day.
  • Eats on average 5 prey a day.
  • Do not enter in diapause.
  • Becomes inactive under 10°C.



  • GL0138 - Neoseiulus californicus - 2 000 individuals on vermiculite
  • GL0137 - Neoseiulus californicus - 5 000 individuals on vermiculite
  • GL0034 - Neoseiulus californicus - 25 000 individuals on vermiculite

Slow release sachet

  • GL0038 - Neoseiulus californicus -500 slow release sachets


N.californicus can be introduced in the form of slow release sachet (preventive) or in bulk (curative and hot spot). The use of this predator is recommended when the temperature exceeds 25 °C and low humidity. This predatory mite can be release in outside crops like fruits and Cannabis.

In the case of two-spotted spider mite severe infestation (presence of web), introduce the predatory specialist mite Phytoseiulus persimilis directly in outbreaks if your environmental conditions allow.

Introduction rate
Introduction Quantity Surface Fréquency Duration
Preventive 1 sachet per m2 4 to 6 semaines continuously
Curative 20 per m2 14-21 days As needed
Hot spot 100 per m2 7 days As needed

Product data sheet(s)

Fiche signalitique
Neoseiulus californicus sachets - technical sheet

Additional information

  1.   - Mite Pests in Greenhouses Crops: Description, Biology and Management - Omafra
  2.   - Greenhouse Grower Notes: Sizing up predatory mites - Greenhouse Canada
  3.   - Neoseiulus californicus - University of California
  4.   - Making the most of your predatory mites - Greenhouse Canada

Targeted pest

Targeted production

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