Prevent spider mite outbreaks before they start – a slow-release, chemical-free solution ideal for houseplants, greenhouses, and conservatories.
Our Amblyseius andersoni Sachets offer safe, long-lasting protection against red spider mites and a variety of other microscopic plant pests. These sachets contain a breeding colony of predatory mites that emerge slowly over 4–6 weeks, providing continuous, preventative protection and stopping infestations before they take hold.
Red spider mites (Tetranychus spp., Panonychus spp.) are tiny sap-feeding pests that thrive in warm, dry environments. They damage plants by feeding on the undersides of leaves, causing yellow speckling, leaf curling, and eventual leaf drop. They are hard to eliminate once established, which is why prevention is key.
Amblyseius andersoni mites are widely used in commercial horticulture and are now available for home growers. They are natural predators of:
Red spider mites (Tetranychus & Panonychus species)
Rust mites, Fuchsia gall mites, Pear blister mites, Boxus mites
Thrips and other soft-bodied pests
These mites:
Feed on pest eggs, larvae, and adults
Survive in temperatures from 6°C to 40°C, ideal for early-season use
Tolerate lower humidity better than other predator mites
Feed on pollen and spores when pest levels are low
Can be used indoors all year round or outdoors from late February
Amblyseius andersoni is primarily used to prevent spider mite infestations or as an early-season control rather than a treatment for heavy infestations. They are especially useful as mites come out of hibernation in early spring.
If you’re dealing with an existing, large infestation, we recommend using Phytoseiulus persimilis first to knock down numbers, then following up with A. andersoni sachets to maintain control.
4–6 weeks of slow-release control
Works preventatively or in low-mite conditions
Low maintenance – simply insert into the soil or hang from foliage
Safe for people, pets, pollinators, and beneficial insects
Widely used in commercial glasshouses
Effective across multiple mite species
Survives without prey by feeding on pollen
Mite colour may vary depending on diet, and they are not usually visible to the naked eye.
Use immediately upon arrival – sachets are not suitable for storage
Apply 1 sachet per plant for prevention
Apply multiple sachets per plant for larger specimens or heavier pressure
Replace every 4–6 weeks for continuous protection
Avoid chemical sprays before and during use – these may harm the predators
Temperature range: 6°C to 40°C
Humidity: Performs well even in lower humidity
Suitable environments: Houseplants, greenhouses, conservatories, and outdoor use from late winter
Slow-release sachets with breeding colony of predatory mites
Prevents red spider mites and a wide range of mite species
Survives without pests – feeds on pollen
Indoor or outdoor use
Low-maintenance, no-mess solution
Used in commercial horticulture
Safe, sustainable, and non-toxic
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