Amblyseius swirskii

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Wide Temperature Tolerance 43° - 85° F

LIGHT 1 per sq. ft. bi-weekly, for 3-5 weeks
HEAVY 5 per sq. ft.
bi-weekly, for 3-5 weeks


TARGET PESTS: Two-Spotted Spider Mites, Russet Hemp Mites, Broad Mites, Tarsonemid Mites (Strawberry Mites), Onion Thrips, Western Flower Thrips, Eastern Flower Thrips and Whiteflies.

DESCRIPTION: This predatory mite is beige-pink in color and less than 1mm in size. Eggs are oblong and transparent in color. All stages can be found in the corner of main vein and lateral veins and in the flowers. A. swirskiis are well sited for warm and humid climate conditions. They lay an average of two eggs per female per day. They feed on Thrips, Whiteflies, 

Spider Mites, Tarsonemid Mites and pollen. These mites do most diapause (hybernate) over winter, and will need to be reintroduced every crop.

PRODUCT INFORMATION: Amlyseius swirskii can be used indoors and outdoors on a wide range of host plants. They can treat many types of spider mites and other mite pests. They have a wide temperature tolerance at 43° - 85°F.  They are available in two types of packaging; Bulk cartons and slow release hanging stick sachets. The bilk cartons are shipped as live adults, where as the sachets are shipped as hatching bags, which take up to 4 weeks to completely hatch out. A. swirskii and other live beneficial insects have limited life expectancy and need to introduced into crops as soon as possible upon receipt. If you need to store them, please follow the information below.  

• Storage after receipt: up to 48 hours
• Storage temperature: 50-60°F
• In the dark
• Provide ventilation

RELEASE RATES: 1-5 mites per sq.ft bi-weekly for 3 to 5 weeks. 5K-20K per acre, bi-weekly for 3 to 5 weeks. 

STRATEGIC CONSIDERATIONS: A minimum of 3-4 releases will be needed in an indoor area. (ie: Greenhouses, Grow Rooms)

SCOUTING: Uninfested and damage/webbing-free new growth is a good sign. So is empty webbing, in interior scapes and some greenhouses, or missing webbing, outdoors (if it was there to begin with). Unless your scouting is really top-notch, you’ll probably miss most of the predators present on the leaves. However, if you see some agile-looking mites running quickly across the leaf’s undersurface, they are probably predators.

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