Amblyseius swirskii

Unit of packaging
Amblyseius swirskii (predatory mite)
Pack size: paper sachet with hook
Contains: 250 predatory mites + storage mites (all stages) mixed with bran, 100 or 500 sachets per outer


  • Young larvae of various thrips species
  • Eggs and larvae of whitefly (both Trialeurodes vaporariorum and Bemisia tabaci)

SWIRSKI-MITE PLUS can be used in a wide range of salad and ornamental crops, except tomatoes.




interval (days)








curative light




start when thrips or whitefly is present

curative heavy





infected areas only, always in combination with other benfecials


  • Introduce sachets as soon as possible after receipt
  • Hang up sachets in sheltered positions in the crop (no direct sunlight). Measures improving the moisture balance in the sachets, such as placing the bottom of the sachet on the moist substrate, will have a positive effect on the longevity of product
  • Sachets already have an exit hole
  • Handle sachets by the cardboard strip at the top; predatory mites are easily damaged

Environmental conditions
The predatory mite Amblyseius swirskii is:

  • Not susceptible to diapause, so can be introduced in winter
  • Tolerant to high temperature
  • A. swirskii population starts to develop when day temperature regularly exceeds 20-22°C

Storage and handling
Biological beneficials have a very short life expectancy and therefore need to be introduced into the crop as soon as possible after receipt. Storing them for a period can have a negative impact on their quality and is only possible under the conditions described below. Koppert B.V. is not liable for any loss of quality if the product is stored for longer than recommended and/or under incorrect conditions.

  • Storage after receipt: 1-2 days
  • Storage temperature: 10-15°C/50-60°F
  • In the dark
  • Provide ventilation to prevent CO2 accumulation


  • Amblyseius swirskii can also develop on pollen of sweet pepper and aubergine
  • Preventive introduction on pollen is already possible at the start of the flowering


  • Mobile stages: beige-pink, droplet shaped, 'pushed down' position on short legs
  • Eggs: oblong, transparant white

All stages can be found in the corner of main vein and lateral veins and in the flowers.
It is not possible to distinguish Amblyseius swirskii in the field from Neoseiulus cucumeris and Amblyseius californicus.

Mode of action
Adult predatory mites search for their prey or wait for it to pass by, then suck it dry.

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. Your local Koppert consultant or recognized distributor will be able to advise you further.

Only use products that are permitted in your country/state and crop. Check local registration requirements.
Koppert Biological Systems can not be held liable for unauthorized use.


Please contact your local consultant for further application information.


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