Field Notes

Will predatory mites survive shipping? Yes. Why the ice pack arrives warm, what the food mites are, how long mites live, and what we do when the weather turns.

Learn how beneficials overwinter, when outdoor releases make sense, and how to preserve shelter and plan for spring pest activity.

How winter changes humidity, reproduction, sachet care, and repeat releases for indoor beneficials, plus the science of cold-weather shipping.

Learn how Persimilis recognizes familiar mites, how early encounters affect cannibalism, and why a female’s egg placement can matter.

Discover how Phytoseiulus persimilis uses plant odors, learns associations with food, and responds to spider-mite webbing while hunting.

Explore Persimilis origins, appearance, diet, and life cycle, plus the learning and social behavior behind this familiar spider-mite predator.

Why a living predator, a growing predator population, and a shrinking infestation are different observations—and how temperature, humidity, food, and residues help explain them.

Use a loupe, distinguish old leaf damage from new feeding, and compare repeat observations to judge progress.

Follow Andersoni through a plant to understand hunting cues, walking routes, release placement, and why a mite may move on.

What makes Andersoni different from other predatory mites, how its life unfolds beneath a leaf, and why a broad diet only helps when the food is there.

Troubleshoot returning spider mites by checking live pests, release coverage, heat, humidity, spray history, and gaps between prevention sachets.

Judge Californicus by live spider mites, spreading damage, and new growth—not by whether old leaves heal or every predator stays visible.