BLACK LEG CONTROL IN POTATOES
Many farmers in the Valley have
recently reported Black Log In
their potatoes.
B lack Leg is a bacterial dis
ease which is carried into the
potato field on the seed potatoes.
The disease'may be easily recog-l
nizod in your potato patch. Ad
vanced stages of the disease
will leave the plant dwarfed or
spindly. The branches and leaves
may be slightly or badly wilted
and yellow in color, .Instead of
spreading out, the top will tend
to grow upwrrd into a compact top
On plants which are only slight
ly infected the newer top leaves
will be somewhat' shranked,
wrinkled, and curled along the
mid rib. Tftey will not be devel
oped to full size and will lack
thb normal healthy natural luster.
Upon pulling the plant the stem
may be found to b.e completely or
partially destroyed, by a brown
or, in advanced, cases, a black
rot.
Diseased plants should be pulled
and burned. The potatoes from
these plants should be removed.
If the tubers arc not infected
they may be used for food. If
diseased, they should be burned
with the-vinos. By eradicating
the infected plants immediately
one may help check the spread of
bacteria to other plants.
It seorio that wo may expect future
looses of considerable extent
from Black Leg in our local pota
toes unless preventive measures
arc practiced.
One of the be t preventive meas
ures we have' for'B lack Leg is
treatment of the seed before plant
ing.
Methods of control which can be
used will be given before plant
ing time next spring by the
University Extension Service.
( Information from the Extension
Service. )
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