To prevent this disease, one must properly prepare the soil. Remove any dead stumps and their roots. In area where trees are to be removed, it means ring-barking a year in advance in order that the dead tree's roots are exhausted of all nutrients. This disease is easier to prevent than to eradicate. Generally occurs to seedlings soon after germination.
Symptoms are the seedling collapses.
This is an ant and termite transported disease. It starts at the thinner roots and spreads to the base of old trees. Trees should be burnt and the soil deeply cultivated, in a year or so, the space may be replanted with some success. This is somewhat a mysterious disease. That is to say, plants mysteriously die and the generally have these insects around them.