Amblyseius swirskii
Predatory mites



  • 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 is available in 100 or 500 sachets per box.

The sachets are climate resistant, 100% industrial compostable and they satisfy the conditions of the 'Industrial compostable’ standard (certified by external party). The sachets can therefore be disposed of together with the crop waste.

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 when the first signs of a pest appear. 

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.

Usage of Ulti-Mite Swirski


  • 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 for Ulti-Mite Swirski
The predatory mite is not susceptible to diapause and therefore 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.

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 Canada Limited 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

The information given below is merely indicative. Tailored advice requires detailed information on local factors, such as the crop itself, climate conditions and the level of infestation. To ensure a correct approach, please consult a Koppert specialist or a recognized distributor of Koppert products.

ULTI-MITE SWIRSKIrate m²/unit interval(days)frequencyremarks
preventive-2 1/228-42--
curative light-2 1/228-start when thrips or whitefly is present
curative high-128-infected areas only, always in combination with other beneficials



More information?