Field Notes

How to distinguish a living sachet colony from useful delivery onto plants, and what to observe without opening the packet.

Every commercial rate for this animal is written per unit of area, because a greenhouse bench is one continuous canopy. Convert that onto a shelf of separate pots and the arithmetic gives you a comfortable number while most of your plants get nothing.

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

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.

Not sure how many nematodes you need, or why your last application didn't work? This covers the dose, the timing, the water, the temperature — everything that actually matters.