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  Product Information Home » Greenhouse » Insect control » Mites

Amblyseius andersoni
May be allowed in organic production.

The predatory mite Amblyseius andersoni eats many different pest mites including 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 occur on many host plants where they can cause significant 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 damage is noticable, the pest mites are already present in large numbers.

A. andersoni not only feed on harmful mites, but also on thrips, pollen, honeydew and fungi. Temperature tolerance of 6°C to 40°C

The predatory mites become active at 6°C - 8°C, as most spider mites do. Introduce A. andersoni early. It is not necessary to wait until pests appear as A. andersoni is a polyphageous mite, it easily finds an alternate food source to maintain itself. A. andersoni can survive even in absence of prey and will prevent possible outbreaks. Even if the pest is eradicated, A. andersoni-predatory mites will still form a threat to other prey.

The predatory mites are available in 10000 or 25000 sprinkler tubes and slow release sachets. The composition of the carrier consists of bran and vermiculite.
Depending on crop and pest level disperse 20 to 100 predatory mites per m².

The predatory mites are released in the crop by means of breeding waterproof sachets. Each sachet contains a minimum of 250 A. andersoni predatory mites in a carrier of bran and feeder mites as a food source. Over a period of several weeks thousands of predatory mites will progressively emerge from every sachet via the pre-punched hole and gradually spread throughout the crop. There is no need to open sachet. Hang 1 sachet every 2 meters in a row of plants. If necessary, repeat introduction after 6 weeks to maintain a continuous presence of A. andersoni in the crop.

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 a week, although it is recommended to release them in the crop within 18 hours. Lower storage temperatures can have a negative influence on the conservation of A. andersoni.

Item # Description Size
15045, 15050 A. andersoni Loose 25,000
17215 A. andersoni Sachets 250
15098 A. andersoni Sachets 200
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