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An extremely common and troublesome disease that affects seeds and young seedlings. Damping off can be caused by a large range of fungi and fungus-like organisms that have their spores lay dormant in soil and compost. Due to a large number of organisms that cause it, damping off can affect an enormous range of vegetable and ornamental crops.
Overly moist growing media. Poor airflow. Drying out of growing media.
Seedlings dying often is circular patches.
Shriveled top growth.
Roots rotten away.
Seedlings falling over.
Mould on leaves of larger plants.
There are no biological treatments.
Chemical treatment is ineffectual due to the speed at which the seedlings become beyond the point of saving.
The life cycle depends on the species of pathogen.
Sow seeds into fresh compost.
Affects a wide range of plants. Most seriously in bedding plants.