Type of use

Preventative and curative


  • Thrips tabaci
  • Frankliniella occidentalis
  • Other thrips including larger more aggressive thrips

Conditions of use

  • Temperature range 12°C <> 30°C / > 54°F
  • Optimum Humidity 70% – 85%

Alternative sources of food

  • Whitefly
  • Pollen
  • Tarsonemid and broad mites
  • Aculops spp
  • Fungal spores


Montyline contains the predatory mite, Amblyseius montdorensis.

It predates on whiteflies as well as thrips, aculops and other small soft bodied pests making establishment in the absence of thrips more likely. It also eats significantly more prey than A. cu. In the absence of prey it can also survive on the plant by feeding on pollen or fungus so it is ideal for preventive control of whitefly and thrips.

Montyline is a stronger mite than A.cu and Starskii feeding on a later instar larval stage of species such as Frankliniella occidentalis, and also on larvae of larger and more aggressive thrips species such as Thrips fuscipennis.

Active at a broader range of temperatures than other predatory mites, particularly down to a lower threshold of 12°C, makes it perfect for controlling pests in more challenging environmental conditions.

At lower humidities eggs laid in the open may dry out and not hatch but the microclimate on the leaf is higher than in the air so this is, in practice, unlikely to happen.

Available as

  • Sachets CRS
  • Mini sachets
  • Gemini Sachets:
  • Sachets-On-a-Stick
  • Bugline
  • Bulk material


Due to the large numbers of crops and release systems rates are highly variable; example programs are supplied for different crops.