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Amblyseius fallacis

$39.00

Amblyseius fallacis

$39.00

Orders for A. fallacis must be received by noon on Friday for shipment the following Wednesday.

TARGET PEST: Most spider mites; including two-spotted spider mite, broad mite, russet mite, rust mites, other small arthropods. 

FOR YOUR FILES: Amblyseius fallacis Tech Sheet (PDF)

  • Amblyseius fallacis is a North American native generalist predatory mite that feeds on most spider mites. Unlike other predatory mites, A. fallacis can survive low temperatures and remain in areas with low levels of spider mites; able to feed on an array of pests, especially their eggs, as well as pollen. Best used preventatively.

    Adults have tan to light orange, pear-shaped bodies (0.5 mm long), and shiny long legs. Immature predators are cream colored or semi-transparent, and eggs are oval (0.3 mm long). Development from egg to adult takes 7-9 days at 70°F (21°C) to 3 days at 32°C. Adult females lay 1-5 eggs per day, for 26-60 eggs total in their 14-62 day life span. Eggs are oval and twice the size of TSSM eggs. Female A. fallacis feed on 2-16 spider mites per day. Adults enter diapause in response to 14 hours of daylength or less (temperature dependent).

    A. fallacis is available on bean leaves or carrier. Note that although the bean leaves may contain two-spotted mites, the predators eliminate them quickly so it will not add to your pest problem. The live prey does enable A. fallacis to become established quickly and start reproducing immediately for improved biological control.

  • 1 to 2+ mites per sf depending on pest severity. Apply bi or tri-weekly.
  • 1) Vials and bottles: Disperse insects and carrier over the crop foliage.
    2) Bottles with carrier: disperse evenly with carrier over the leaf material in your grow space.
    3) Bean Leaves in tray: separate leaflets and place on crop foliage throughout the grow space.
  • Orders for A. fallacis must be received by noon on Friday for shipment the following Wednesday. Orders received after the deadline will be held until the following shipping week. Beneficial insects are normally shipped by FedEx Ground within the state of Washington, and by FedEx Express elsewhere in the USA. Please contact us directly if you require a different method of shipping. Live insects may not be shipped to Hawaii.