Friday, 7 August 2026
Pictures of our harvest 2026
To the Leek moth I say "Zap!"
Hello and happy summer, Garlic Growers :-)
I had a couple calls about "what's damaging my garlic scapes, and chewing them up " this summer. So, if you haven't discovered them yet, that's probably Leek moth. They are a small gray fluttery bug that lays eggs, which turn into larvae that chew holes into the living tissue of allium plants, leaving a cornmeal like "frass" behind aa evidence, in most cases.
Now, you'd think these pests would only be a problem for early summer, but they can have 2 - 3 life cycles in Ontario during a regular growing season. They are nocturnal and start flying when nighttime temperatures are above 9.5 Celsius.
Unfortunately, the fun doesn't stop there, especially for growers like myself, who bring the whole plant inside to cure. Incidentally, a lot of eggs and pupae can hatch in your storage and drying area.
One effective way to trap them is to use mosquito 🦟 bug zappers at night. Experiment with the best place to set them (usually the seat of a chair works well, so they are a foor or two off the ground, and also find a place away from directly blowing fans).
You might be astonished at how many you can catch. Just make sure they are fully zapped in the morning!
It is important because they can chew their way into the bulb as the plant dries, and eliminating as many as you can reduces damage to your crop, leaving more salable bulbs intact.
Zap!






