Disease in the winter greenhouse

Last winter, we had an outbreak of downy mildew on stock (Matthiola incana) in our greenhouses. We had a loss of 52 flats, 128-cells double seeded, which was about 13,000 plants. At around $1/stem, that’s a lot of plants and potential money in the trash, and according to our accountant, not something we could write […]

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