Ulti-Mite Swirksi

Ulti-Mite Swirksi Predatory mite Amblyseius swirskii

Use Ulti-Mite Swirksi for:
  • Young larvae of various thrips species
  • Eggs and larvae of whitefly

Each sachet with hook contains 250 predatory mites and storage mites (all stages) mixed with carrier material /bran. Ulti-Mite Swirksi is available in 100 or 500 sachets per box.

The sachet is made of a  100% industrial compostable foil. It satisfies the conditions of the 'Industrial compostable’ standard (certified by external party). The sachets can therefore be disposed of together with the crop waste.

General information

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When to use Ulti-Mite Swirski

Use Ulti-Mite Swirski for biological pest control of young larvae of various thrips species and eggs and larvae of whitefly (both Trialeurodes vaporariorum and Bemisia tabaci). Use Ulti-Mite Swirski as a preventive method and at the first sign of the pest's presence.

How Ulti-Mite Swirski works

Adult predatory mites search for their prey or wait for it to pass by and subsequently feed on their prey.

How to use Ulti-Mite Swirksi


  • Use sachets as soon as possible after receipt
  • Hang sachets in sheltered locations on the crop (no direct sunlight).
  • Sachets can be placed directly into the crop (sachets already have an exit hole)
  • Handle sachets by the cardboard strip at the top; predatory mites are easily damaged

Best working conditions

The predatory mite is not susceptible to diapause. Therefore, Ulti-Mite can also be introduced during the winter time. It is tolerant to high temperatures; a swirskii population starts to develop when the temperatures during the day regularly exceed 20-22 C/68-71.6°F.


The information given below is merely indicative. Tailored advice can be provided if information is available on the local factors that need to be taken into account, such as the crop, the climate conditions and the level of infestation. For the correct approach, please consult a Koppert specialist or a recognized distributor of Koppert products.

Ulti-Mite Swirksi preventive light curative heavy curative
m2/unit 2,5 2,5 1
Interval (days) 28-42 28 28
Remarks - start when thrips or whitefly is present infected areas only, always in combination with other beneficials


Biological beneficials have a very short life expectancy and therefore need to be introduced to the crop as soon as possible after receipt. Failure to do so can have a negative impact on their quality. In case you do need to store Ulti-Mite Swirski, please follow the instructions 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

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