Amblyseius Andersoni Treatment Bottles

Andersoni is a foundational predator that prevents pest populations from reaching "outbreak" levels:

• Two-Spotted Spider Mites: Effective at hunting colonies on a wide range of host plants.
• Microscopic Mites: Specifically targets Broad Mites and Hemp Russet Mites that are too small for other predators to see.
• Thrips Larvae: Consumes first-stage thrips larvae as they hatch on the leaf surface.
• Pollen: Can survive on pollen alone, allowing it to stay on the plant as a preventative "shield" even when pests are absent.

This mite is the gold standard for versatility. It is the most resilient mite in our catalog for fluctuating environments.

• Temperature Range: 43F to 100F. While it is most active between 65F and 85F, it will not die off during temporary cold snaps or high-heat spikes.
• Humidity: Performs best at 60% to 70% RH, but it is more tolerant of dry air than Amblyseius swirskii.
• Day Length: Not affected by shorter days, meaning it will not go into "hibernation" (diapause) in winter indoor grows or fall outdoor seasons.

Andersoni vs. Californicus: Both handle heat well, but choose Andersoni if you are starting early in the season or have cooler nights, as it handles cold much better than Californicus.

The Greenhouse Choice: If your greenhouse temps swing wildly from day to night, choose Andersoni. It is the most stable "set-it-and-forget-it" predator for variable climates.

Prevention Specialist: Because it can eat pollen, choose Andersoni to release early in the season. It will live on your plants and "wait" for the first spider mites to arrive.

The Gentle Tumble
Before opening the bottle, gently rotate it end-over-end to ensure the mites are evenly distributed within the carrier material.

Application

• Leaf Broadcast: Sprinkle the material directly onto the foliage. Focus on the upper third of the plant where new growth is occurring.
• Release Boxes: For plants with sticky flowers or high resin, use hanging release boxes to prevent the carrier from sticking to your harvest.

Dosing Rates

• Preventative: 1,000 mites per 100 sq. ft. every 4 weeks.
• Active Infestation: 2,000 to 5,000 mites per 100 sq. ft. Repeat every 14 days until pests are controlled.

Release Timing: For maximum impact, release Andersoni within 24 hours of delivery.

Storage: If you must wait, keep the bottle horizontal in a cool, dark place (50F to 60F). Do not refrigerate.

The "Invisible Army" Note: These mites are tiny (about 0.5mm) and pale in color. They are very difficult to see without a magnifying glass as they hide under leaves and in flower sites.

Yes! It is one of the best mites for outdoor orchards, vineyards, and gardens because it can handle wind and temperature changes.

No. They are strictly predators and do not damage plant tissue.

Yes. They work perfectly alongside Swirskii or Persimilis to provide a multi-layered defense.

Adults live for about 3 weeks, but if food is present, they will breed and establish a permanent population.

No. While they may eat a very young aphid occasionally, they are not an effective control for aphid outbreaks.

Yes. These mites are harmless to humans, dogs, cats, and other animals.