Field Notes

Choose swirskii by the pest stage, plant, growing environment, and treatment goal—not the prey list alone.

It is about half a millimeter long, and it eats pollen as happily as it eats pests. That second fact is the whole reason anyone buys it — a predator that can feed itself on a clean plant is already there when the thrips arrive.

A connected troubleshooting path from live thrips counts to coverage, conditions, prey stages, and a better repeat-treatment plan.

Why sheltered placement and plant coverage affect cucumeris sachets, and how to use those lessons in a prevention program.

The soil mite you buy for fungus gnats has been sold under another species' name for fifty years, and it's credited with a prey list the science only partly supports. Here's what it is, what it eats, where it lives in the pot, and which claims on the label survive contact with the studies.

Soil mites are sold by the thousand and applied by the tablespoon, which makes it hard to know whether you've used enough. Here's where the numbers come from, how they convert into pots, and what the first month should look like on a sticky card.

Almost every "the mites didn't work" story traces back to one of nine causes, and most of them were decided before the bottle was opened. Here's each failure mode, the mechanism behind it, and the fingerprint that tells them apart.

No published trial has ever put predatory mites, beneficial nematodes, rove beetles and Bti head to head under one protocol. What exists is a set of single-agent results answering different questions — how fast, how long, which life stages, and which of them eat each other.

Soil isn't a material a predator moves through. It's a three-dimensional maze of pores, films and dead ends, and the size of those pores decides who hunts where. This is the physics underneath every soil biocontrol instruction you've ever been given.

What cucumeris does in a thrips program, why adults can remain after release, and where treatment and prevention fit.