Amblyseius andersoni predatory mites offer a natural, effective way to control spider mites, broad mites, and a wide range of other pest mite species before they take over your garden or grow space. These generalist predators can help knock down mite outbreaks fast without pesticides.
Ideal for gardens, greenhouses, grow rooms, and commercial crops with heavy trichome density, andersoni predators are widely used in biological pest control and IPM programs.
What are Amblyseius Andersoni Predatory Mites?
Amblyseius andersoni is a generalist predatory mite used in integrated pest management (IPM) programs to control a wide range of plant-damaging mite species. Unlike specialist predators, andersoni adapts to fluctuating temperatures and humidity, making it one of the more resilient biological control options for both indoor and outdoor growing environments, including greenhouses, gardens, and commercial crops with heavy trichome density.
What do Amblyseius Andersoni Target?
Effective against two-spotted spider mites, carmine mites, Lewis mites, Banks grass mites, broad mites, cyclamen mites, russet/gall/rust mites, European and citrus red mites, and many other pest mite species. Also preys on thrips larvae.
How It Works
Andersoni predators are pear-shaped, eight-legged mites that shift color depending on diet. Females lay transparent eggs beneath leaves near pest activity; these hatch in 7–14 days into larvae that begin feeding immediately. As they mature, they target pest mites across multiple life stages, with adults remaining active predators for roughly 30 days — giving crops sustained protection rather than a single knockdown event.
Choosing Your Release Method
Bottled Predators — Active Infestations
- High concentration of adult predators ready to feed immediately
- Best for knocking down an existing outbreak
- Suitable for gardens, houseplants, greenhouses, and larger agricultural areas
- Introduce weekly or bi-weekly as needed
Slow-Release Sachets — Prevention & Maintenance
- Contains a mix of life stages for a steady predator release over 2–4 weeks
- Ideal for ongoing prevention rather than active outbreaks
- Low-maintenance: hang and forget for weeks at a time
- Sachets should be kept out of direct sun and never allowed to dry out completely, which can encourage fungal growth
Application Rates
Note: these are general starting guidelines — actual rates may need adjustment based on infestation severity and crop type.
Bottled Mite Release
| Application | Rate | Frequency |
| Light Infestation | 2-5 mites per sq. ft. | Weekly or bi-Weekly |
| Heavy Infestation | 5-7 mites per sq. ft. | Weekly or bi-Weekly |
Sachet Release
| Plants Touching | 1 sachet per 3-6 sq. ft. | Every 2-4 weeks |
| Plants Not Touching | 1 sachet per plant | Every 2-4 weeks |
Temperature & Humidity Range
Effective range: 47°F – 104°F
Humidity: 60–90%
Application Instructions
Bottled Release:
- Release in the morning, evening, or when grow lights are off
- Clear away any webbing on affected foliage
- Lightly mist leaves before introducing predators
- Sprinkle directly onto infested plants, or use hanging boxes to concentrate predators in target zones
- Leave the container in place for 72 hours so remaining predators can disperse
- Repeat bi-weekly until infestation is controlled
Sachet Release:
- Identify plants where prevention is the goal
- Hang sachet on the plant, away from direct sunlight
- Replace every 2–4 weeks for continuous coverage
Pairing for Full-Spectrum Mite Control
For heavier spider mite infestations, andersoni pairs well with Stethorus punctillum (a predatory beetle that also feeds on aphids) or Feltiella acarisuga (a flying spider mite predator) as part of a layered IPM approach.
Safe, natural pest control (IPM friendly)
- 100% natural — no chemical residue
- Safe around people and pets
- Safe for use on edible crops
- Fits seamlessly into existing IPM programs
- Requires no protective equipment
Storage
For best results, release immediately upon arrival. If short-term storage is unavoidable, keep at 45–55°F for no more than 24 hours, out of direct sunlight. Never freeze.