Phytoseiulus persimilis is a predatory mite for the control of the Two Spotted Spider Mite ( TSSM, Tetranychus urticae) in a wide range of protected and open field crops as strawberry, pepper, eggplant, cucurbits and many others.
The adult females with the typical pear-shaped body are shiny orange, very mobile and slightly bigger than a red spider mite. Development of young stages is very quick and at 20ºC takes less than 10 days while in the same conditions the pest needs almost 18 days to reach the adult stage. The predator has a good searching capability and walk rapidly especially when food is scarce even if the plant canopy could influence its action and walking speed. The production is originated from a population collected in southern Italy and gives a very good performance even in extreme climatic conditions.
P.persimilis is available in bottles (FitoPAK) containing 2.000 or 10.000 units, in vermiculite or sawdust. It is recommended to start the release programme very early when the first sign of infestation are detected introducing in different times a total of 5-6 up to 20-25 predators per square meter.