Damping off

Symptoms

Seedlings keel over, collapse and die. Usually there is some discolouration and rotting around the base of the seedling.

Cause

Damping off is caused by several soil and water-borne fungi that attack the stem base, which then becomes thin and brown. It is encouraged by poor light, overcrowded seedlings, cool, humid conditions and over-watering.

Treatment

Always use clean containers, fresh compost and clean water. Sow seeds thinly. After sowing water with copper fungicide, such as Murphy Copper Fungicide as a preventative or at the first sign of attack.

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