Amblyseius andersoni (250/sachet) – 250 sachets


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Amblyseius andersoni is a predatory mite that can be used in the control of a range of mite pests. This predatory mite is ideal for vegetables, hardy ornamentals and fruit crops, controlling two-spotted spider mites, European red mites, broad mites, cyclamen mites and russet mites.  A.andersoni will also feed on pollen and thrips larvae allowing the population to survive when pest mite populations decrease.

It is active at low temperature ranges (6-40ºC / 43-104°F), which means that it can be introduced much earlier in the growing season than some other predators. It is available in the Mini sachet with a hook or the water-resistant Gemini sachet that will tolerate irrigation or rain, so can be used in outdoor crops and over-head irrigation on protected crops.

Predatory mite:  Treats many types of spider mite and other mite pests

  • For protected or outdoor crops
  • Long lasting Controlled Release Sachet (CRS) maintains protection
  • Ideal for fruit trees and soft fruit crops
  • Ideal for deciduous hardy ornamentals
  • Tolerant of temperatures 6ºC-40ºC


Adult female mites lay single eggs onto leaf hairs, and these eggs hatch after 2-3 days into larvae. All mobile stages are predatory, and they will feed on eggs, juveniles and adults of spider mites. As temperatures decrease, and days become shorter, in early autumn the mites will enter into a diapause so they can successfully survive winter conditions. They are reported to become active again as early as January but that depends on temperatures and food availability.


Amblyseius andersoni can be used indoors and outdoors on a wide range of host plants. They can treat many types of spider mite and other mite pests. They have a wide temperature tolerance of 43ºF – 104ºF. Amblyseius andersoni is reported to be one of the first predatory mites to invade fruit crops after insecticide treatments are reduced. These mites can also survive on young larvae of thrips, flower pollen, sugary excretions from pests, and fungi, so they can be introduced before the prey is present. They are available in loose shaker tubes and breeding sachets. The sachets are resistant to water so the breeding population of mites remain in good condition. The sachets can provide a release of mites over several weeks.


Amblyseius andersoni is intended as a preventative treatment for spider mites and other mite pests. It is best used before pest populations have reached high levels.


  • For best results apply the A. andersoni when pest mite numbers are low. The predatory mites will then be able to feed on small colonies of pest mites and prevent them from growing and causing major damage. It is better to use A. andersoni together with other specialized predatory agents. Avoid exposing the sachets to direct sunlight.
  • This product is domestically produced with limited production, and may become OVERSOLD durring periods of high demand.  If you use this prodcut in your IPM program, you may want to condisder being on the Auto Re-Order program, and/or setting up an automatic alternate that we can ship in case of shortages. 
  • Andersonis are a special order product.  Orders must be placed by Wednesday 10AM PST for delivery the following week.


This predator works well on both inside protected crops and outside in ornamental crops, fruit trees, horticulture, nurseries and seedbeds.

Release rates:

  • Mini sachets: use one per every 6 feet of crop row
  • Shaker tube: 2 to 3 predatory mites per 10-11 square feet
  • In trees: 1 sachet/tree

Storage and transport:

  • Keep out of direct sunlight
  • Transport and store at 10-15ºC
  • Use within 18 hours of receipt

All times are Pacific Time Zone
Holiday Shipping Schedules apply to all products.

Orders Processed by 10:00 AM Thursday are shipped the following Tuesday

  • West Coast FOB available by Next Day or 2nd Day Method when conditions allow.
Domestic Shipping Schedule

Will Call pick-up at Everwood Farm: 

  • You must have an Auto-Reorder Account to use this method for this prodcutContact Us for details.


  • Model: AN4
  • Shipping Weight: 5lbs
  • Manufactured by: Beneficial Insectary: Sachets


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