The body of the adult of the predatory thrips Karnyothrips melaleucus has 2 distinctive colors: the head and thorax are brown whereas legs are yellow, with the exception of the front femus that are largely brown. Larvae with translucent red-orange spots.

Mode of Action:

Both larvae and adult predatory Karnyothrips are active predators. They are looking very actively for prey. It is a predatory trips originating from the tropics. The predatory thrips is a natural enemy of various scales (Coccidae, Diaspididae, Lepidosaphes poperis Gr. Aspidiotus and destructor Sign.). Karnyothrips is able to crawl under the scale cover looking for prey and also to move through different the layers of armoured scale that can be present in situations with heavy infestation. Karnyothrips is found in / on citrus trees, vines, ground cover, finial, living and dead grass, bamboo, mimosa, dead bushes, dead wood, bamboo leaf litter, old citrus twigs with lichen, Cassia fistula (Cassia) leaf litter and Eragrostis (grass).


Karnyothrips is used in greenhouses and indoor plantings as biocontrol agent of multiple types of scale insects. Consider multiple repeated introductions. The product is sensitive to various chemical pesticides. Ask for advice on deployment strategy.

effect of Karnyotrips

  • natural enemy of various scales 
  • not very mobile; hides under scale covers
  • visible effect hard to notice; only after lifting scale cover
  • population build up takes at least several months

The product Karnyothrips


adult Karnyothrips

Product: 1000 or 5000 adult predatory thripses in 100 ml jar on wood fibers

Shelf life: maximum 2 days at 10-15°C

Climate: Karnyothrips does not make high demands towards temperature and humidity. The temperature must be periodically above 18 ° C. In winter Karnyothrips seems less effective, but the species has no real winter dormancy

Targets Karnyothrips melaleucus: