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Typical diseases of corn salad
In general, lamb's lettuce is not susceptible to disease if it is not too close to the bed. However, real and downy mildew of lamb's lettuce can cause unsightly discoloration on the leaves and inhibited growth.
Seed selection and water balance
While dryness for powdery mildew fungus is the deciding factor, downy mildew of lamb's lettuce occurs when there is high humidity in the cold frame or greenhouse with little ventilation. To prevent infestation, care must be taken to ensure sufficient plant spacing and the selection of disease-resistant seeds.
Tips & Tricks
The downy mildew fungus of lamb's lettuce (Peronospora valerianella) is a fungus that only attacks lamb's lettuce. Other types of lettuce such as lettuce or lettuce are not affected.