The fungi cause the stem base and roots to rot
causing the leaves to become discoloured. The rot at the base of
the plant spreads up the main stem discolouring that as well. If
the disease progresses the plant collapses completely.
The fungus is normally introduced to an area by
the introduction of a plant which is already infected although
it can be bought in on garden implements and machinery. Occasionally
this garden pest is introduced with new soil which is already infected.
Once in your soil, the garden disease Foot and
Root Rot can over winter for several
years as spores. It is very difficult, if not impossible to
remove it completely.
Conditions Which Cause Foot
and Root Rot
There are two main causes of the garden pest Foot and Root Rot.
Firstly, warm damp conditions especially if followed by cold dry
conditions. Secondly, growing plants too closely which traps in
damp and prevents free circulation of air.
What To Do?
First, there is no effective treatment, chemical or
otherwise. Prevention is the key, sow or plant at recommended
distances apart. Do not over-apply nitrogen rich fertilisers,
this only encourages excessive leaf growth which makes plants
more vulnerable. Buy plants and seeds from good sources to avoid
bringing in the infection. Crop rotation will also help to avoid
Burn infected plants and clear the area of all
debris from the plants. Don't plant the same crop on infected
areas for many years. Use the infected area for plants which are
not affected by this disease. Foot and Root Rot (Fusarium)
affects a large number of vegetables and fruit.
THE GARDEN PEST AND DISEASE MAIN PAGE FOR
PESTS AND DISEASES CLASSIFIED BY PLANT