Macrocheles robustulus

Packing unit
Macrocheles robustulus (predatory mite)
Pack size: cardboard cylinder
Contains: 50,000 predatory mites (all stages) in vermiculite and peat


  • Thrips pupae
  • Eggs, larvae and pupae of sciarid flies (Sciaridae), preferring smaller larvae
  • Lyprauta larvae

Side effect on:

  • Other soil insects and nematodes
  • Eggs of Duponchelia fovealis
  • Eggs of Delia radicum
  • Oribatida


Macrochelesdosem²/unit interval (days)frequency note
250/m² 200 -1x-


  • Rotate/shake gently before use
  • Spread material on the soil or pot

Environmental conditions

  • Moist soil rich in humus and with loose structure, minimum temperature of 15°C

Storage and handling

  • Storage after receipt: 1-2 days in the dark
  • Storage temperature: 10-15°C


  • The predatory mite does not enter diapause (dormancy) in response to shorter days
  • The Macrocheles robustulus product also contains storage mite. As far is known, these do not cause damage to crops
  • Apply the predatory mites on the soil, not on the crop. If you do not have any experience with a specific crop or variety then begin by carrying out a small-scale test. Alternatively, ask your supplier for advice
  • For an optimum result we recommend that you cover the soil/pots with a top layer after application and keep this layer moist, for example by installing one or two tricklers. We have excellent experience with Crustell’s Biotop product


  • Adult: length 0.6-0.8 mm, brown
  • Larvae/1st nymphal stage: white

Mode of action
Adults and nymphs feed on thrip pupae and other soil insects.

Visible effect
The mites can be seen on the soil and around the base of the plant. Macrocheles is not seen on the plant. The mite reduces infections of thrips and black fungus gnat.

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.



Product against thrips
Stratiolaelaps scimitus
Steinernema feltiae
Amblydromalus limonicus
Lecanicillium muscarium
Amblyseius swirskii
Amblyseius swirskii
Amblyseius swirskii
Neoseiulus cucumeris
Neoseiulus cucumeris
Neoseiulus cucumeris
Orius insidiosus
Orius laevigatus
Amblyseius swirskii