The new predatory mite Amblyseius andersoni offers excellent perspectives in ornamental and fruit crops, tree nurseries and protected horticulture for the control of pest mites.
The predatory mite Amblyseius andersoni eats many different pest mites such as spider mite, gall mite, and russet mite. Main target pests are red spider mite (Tetranychus urticae), European red mite (Panonychus ulmi), apple rust mite (Aculus schlechtendali) and boxwood bud mite (Eriophyes canestrinii). Spider mites are present on a large number of host plants where they can cause a lot of damage resulting in discoloration of the leaves and formation of webs. Besides the aesthetic damage, spider mites also cause growth inhibition. Gall and russet mites are minuscule and barely visible with a regular magnifier lens. Russet mites cause a brown discoloration of the leaves and gall mites cause malformations. When noticing the damages, the pest mites are already present in large numbers.
A. andersoni does not only feed on harmful mites, but also on thrips, pollen, honeydew and fungi.
Typhlodromus (Amblyseius) potentillae or Amblyseius (Euseius) andersoni are the different names used to indicate this predatory mite. It is an indigenous species in Southern and Western
Biobest delivers A. andersoni in the following formulations:
NOTE: Introduction of Phytoseiulus persimilis in hot spots is a favorable addition.
The ideal storage temperature is 15°C. At this temperature the mites stay in optimal condition for at least one week. It is nevertheless recommended to release them in the crop within 18 hours. Lower storage temperatures can have a negative influence on the conservation of A. andersoni.
A population of spider mites can grow very rapidly, especially under dry and warm conditions. Fast action is recommended to keep the spider mite densities as low as possible.