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Amblyseius swirskii

Amblyseius swirskii predatory mite

Description


Amblyseius swirskii is a very effective generalist predatory mite used to suppress immature thrips, two-spotted spider mites, cyclamen (or strawberry) mites (Phytonemus pallidus), broad mites (Polyphagotarsonemus latus), mites of the genus Schizotetranychus and whiteflies in ornamental, fruit and market garden crops.

Adults are pear-shaped, 0.5 mm long, with long legs. The eggs are round and transparent and measure 0.14 mm in diameter. These mites lay their eggs on leaf hairs (trichomes) and along the veins on the inner surface of leaves. The eggs hatch about 3 days later.

Like generalist insect predators A. Swirskii can maintain its population even when there are no more thrips on the plants and start working as soon as thrips reappear. A. swirskii is not susceptible to diapause it can be used throughout much of the season. A. Swirskii needs more heat than Neoseiulus cucumeris to complete its development. Used the predator mite when the temperature is above 25 °C (77 °F).

Targeted crops



  • Market garden crops (tomato, cucumber, pepper, eggplant, bean etc.)
  • Ornemental plants (poinsettia, gerbera, chrysanthemun, rose, etc.)
  • Small fruits (strawberry, raspberry)
  • Indoor plants

Targeted pests



  • Onion thrips (Thrips tabaci)
  • Western flower thrips (Frankliniella occidentalis)
  • Eastern flower thrips (Frankliniella tritici)
  • Echinothrips (Echinothrips sp.)
  • Broad mite (Polyphagotarsonemus latus)
  • Two-spotted spider mite (Tetranychus urticae)
  • Tomato Russet Mite (Aculops lycopersici)
  • Whiteflies (Trialeurodes vaporariorum, Bemisia tabaci and B. argentifolii)

Life cycle


  • Amblyseius swirskii has a life cycle of 7 days at 25 °C
  • Optimal conditions are 25 °C to 28 °C (77-83 °F) with 70% relative humidity.
  • Females lay 2 eggs per day.
  • Do not enter diapause
  • Do not use below 20°C (58 °F). Use Neoseiulus cucumeris.
  • Becomes inactive below 15 °C (59 °F)

Format



In bulk

  • Bottle of 50 000 on bran.

Introduction rate



Amblyseius swirskii
Introduction Quantity Surface Frequency Duration
Preventive 25 per m2 bi-weekly as needed
Curative 50 per m2 weekly as needed
Hot spot 100-250 per m2 weekly as needed

To order


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Olivier Noël Roxanne S. Bernard

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Research

Biological control as a scientific endeavor began more than 130 years ago (beginning in the 1880s).

Source : Encyclopedia of Insects (Vincent H. Resh et Ring T. Cardé, 2003)