March 2025 - Type 3 Predatory Mites
Apr 01, 2026
Choosing the Right Predatory Mite for Thrips Control
Thrips management isn’t always as simple as picking a single solution and applying it across every crop. In the March edition of Koppert Corner, published through GrowerTalks, we focused on one of the most common questions growers face: which predatory mite is the right choice?
While many growers are familiar with using predatory mites, selecting the correct type, especially among generalist type 3 mites used for thrips, depends on several key factors. The wrong choice can still work, but the right choice will perform far more consistently and efficiently.
One of the main points we highlighted is that not all thrips situations are the same. The species you’re targeting, the temperatures you’re growing in, and the value of your crop all influence which predatory mite will give the best results.
Matching the Mite to the Conditions
In this month’s Koppert Corner, we broke down how these factors guide your decision.
For growers dealing with western flower thrips in cooler conditions, a species like Neoseiulus cucumeris is often the most practical choice. It performs well at lower temperatures and is widely used as a preventative solution in many crops.
As temperatures increase, switching to a warm-season species becomes more important. Amblyseius swirskii is particularly effective in these conditions, remaining active and continuing to reproduce even in higher heat and humidity.
For higher-value crops where even minor damage isn’t acceptable, more aggressive predatory mites may be needed. Species like Amblydromalus limonicus or Amblyseius andersoni offer stronger control and broader feeding behavior, making them better suited for situations where precision and consistency are critical.
Why Using the Right Species Matters
One of the most important takeaways is that predatory mites are not interchangeable. Each species has strengths based on environmental conditions and feeding behavior.
We also emphasized a common mistake: applying multiple type 3 predatory mite species at the same time. These mites compete with each other, which reduces their effectiveness overall. Instead, choosing the right species from the start and sticking with it will produce better results.
What This Means for You
For smaller growers and home users, this guidance translates into a simpler decision-making process.
Start by considering your environment. If your growing area tends to stay cooler, a species suited for those conditions will perform more reliably. If you’re growing in warmer conditions or during hotter months, switching to a heat-tolerant option will make a noticeable difference.
If you’re growing plants where appearance is especially important, such as flowering plants, it’s often worth choosing a more aggressive predatory mite from the beginning to avoid damage altogether.
The Bottom Line
The insights shared in Koppert Corner highlight that successful thrips control isn’t just about using predatory mites. It’s about using the right one for your conditions.
By matching the species to your environment and crop needs, you can achieve more consistent control and avoid the trial-and-error approach that often leads to frustration.
Check out the original Koppert Corner in Grower Talks here: 3 Petunia Videos; Predatory Mite Selection; Downy Mildews
Want more quick takes from Koppert's Corner on Grower Talks?
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Pesticide Resistance Residues on Garden Mums - May 2025
Prevent Fungus Gnat Larvae - June 2025
Problematic Thrips on Poinsettas - July 2025
Mealybug Tag-team Takedown - August 2025
Preparing Perennials for Winter - October 2025
Just a dip won't do - November 2025
Gerbera and Hydrangea - December 2025
