I have lettuce plants that have been transplanted to head. Occasionally
I find a head that has withered away and upon examining it find it
rotted away at the stem. Can you suggest a remedy for it?
Your lettuce plants are destroyed by the "damping, off" fungus. It would
be preventable by reducing the amount of moisture until the transplanted
plant had opportunity to re-establish itself in the soil and thus come
into condition to take water. The chance of it could also be reduced by
using a certain amount of sand in connection with the soil, unless it is
already very sandy, and by a shallow covering of sand on the surface
around the plants after they are reset, in order to prevent too great
accumulation of moisture.
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