Amblyseius andersoni slow release sachets

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  • Amblyseius andersoni
  • Amblyseius andersoni slow release sachets

Release Rates

2-3 each per 10 square feet

Technical Information

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Care & Release

Sachets: hang over crop wire, branch or leaf stalk. Do not hang near heating pipes, and hang sachets every 6-12 feet. Sachets should always be shaded from direct sunlight. Shaker tube: shake small quantities onto the crop near flowers. Keep out of direct sunlight and use within 18 hours of receipt.

Amblyseius andersoni Slow Release

The deadline for Amblyseius andersoni orders is at 10:00 am Wednesdays of each week, for shipment the following week.

Target Pests: broad mite (Polyphagotarsonemus latus), cyclamen mite (Phytonemus pallidus), two-spotted spider mite (Tetranychus urticae), red spider mite (Tetranychus cinnabarinus), tomato russet mite (Aculops lysopersici), rust mite (Eriophyidae)

Description: Andersoni occurs naturally throughout Europe and North America. It is primarily found in areas of grape and apple production, but also in soft fruit, peaches, deciduous ornamentals and conifers. Andersoni feeds on many types of small arthropod prey and pollen.

An adult Andersoni is beige and less than 1 mm long. Females lay about 35 eggs during its lifetime. Young larvae have 6 legs; while the next 2 nymph stages have 8 legs (like an adult).

Use in Biological Control: Andersoni is a predatory mite that can be used to control a range of mite pests. This predator is ideal for vegetables, hardy ornamentals and fruit crops. It controls the red spider mite, two-spotted spider mite, fruit tree red spider mite and the russet mite.

It is active at lower temperatures than other predatory mites, which means they can be introduced much earlier in the growing season than some other predators.

Life Cycle: Adult female Andersoni lay single eggs onto leaf hairs, which hatch after 2-3 days as larvae. As with other predators in the same family, these moult and become protonymphs, and then deutonymphs. Development from an egg to adult takes 8-11 days at 68-77°F (20-25°C). Adults live about 3 weeks. Andersoni stops working at 35°F. 

All mobile stages are predatory, and will feed on eggs, juveniles and adult spider mites. They are also able to feed on rust or russet mites (tiny, worm-like mites which can cause major damage to some crops).

As days become shorter and temperature decreases in the fall, the mites will enter diapause to survive the winter conditions. They are reported to become active again as early as January, but this will be dependent upon ambient temperature and food availability.

For Best Results: For best results, apply Andersoni when pest mite numbers are low. The predatory mites will then be able to feed on small colonies of mites and prevent them from growing and causing major damage. Curative use has also been successful on some crops, such as cucumbers and some hardy ornamentals.

Do keep the product in shade until use, and distribute as soon as possible after receipt. Keep the product at 50-59° F until ready to release. Do not refrigerate.

Introduction Rates: 1 liter cardboard tubes containing 25,000 in bran/vermiculite – introduce the contents by gently shaking onto crops near the flowers. Suggested rate is 2-3 predator mites per 10 square feet.

Slow release sachets with hooks attached (indoor use) - introduced at 2 meter spacing along the crop row. Apply to any convenient location on the plant, such as a leaf petiole, twig or small branch. Hang from crop wire or plant. Do not hang adjacent to heating pipes. Duration of sachet activity is 6 weeks, though longer-lasting control may be evident if the mites are establish in the crop. For trees use 1 sachet per tree.

Availability: In stock

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Note: The deadline for Amblyseius andersoni orders is at 10:00 am Wednesdays of each week, for shipment the following week.

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