Atlanta tri-weekly journal. [volume] (Atlanta, Ga.) 1920-19??, 1920-07-03

the crop was itself infected the corn
plant may become contaminated soon
after termination. The smut will
sometimes enter the young, succulent
and rapidly growing parts of the
plant even after it has obtained
some size. No remedy can be given
except to remove and burn all af-
fected plants and avoid the use of
infected seed and infected compost.
This disease may be very serious
on sweet corn.
Mildews-Often one notices light,
WhitisA or downy growth over the
leaves of various garden plants. AS
a general thing these are fungi be-
longing to great group known as
mildews. They can be easily con-
trolled by busting with sulphur or
by the application of a fungicide like
Bordeaux mixture.
Damping -off-Every gardener has
noticed. plants that seem to have
over. Especially is this seen when
the little seedlings are too thick in
the row. We also see it in hot beds
where the surface of the soil has
been kept too wet and ventilation
has been neglected. 1t is an imper-
lies rather in the prevention than In
cure. Where it appears in a field
amongst thick seedlings they should
be Immediately thinned out In the
uOI DEUS allow the surface Ol the SOIL
to dry out and look well after CEN
tilation. Sometimes a light spraying
of the soil of the hot bed with am
monical copper carbonate will cheek
the growth of this trouble.
Watermelon Wilt-This fungus not
only destroys the growing crop, but
prevents the planting of watermelons
on the land for several years follow
ing. The leaves first droop as if the
water supply was insufficient, then
wilt and die, the runner dying with
the surface of the ground one will
notice a yellow color in the wood,
which is quite distinct from the
color of healthy plants. Rotation Of
cDps is the main method of con-
becomes once infected nothing can be
done to save it and it should be
burned. Be sure that any stable ma
nure applied to the melon field is
not also infected, as old rotting vines
and materials thrown on the manure
pile will contaminate it.
Blossom End Rot of Tomatoes-In
the past several years this disease
has become, more and more prevalent
throughout the state and more seri-
Gus in its depredations The bios
som end of the tomato will begin
to look as if it had been bruised.
This appearance continues until final
ly the whole fruit is soft rotten, and
if touched the skin will break and
a very unpleasant odor be given off.
No methods of control have been
found for this trouble. 1t is COM
mon plan to remove the rotting fruit
as soon as they are observed. Some
years this disease does not appear
to any great extent. In other seasons
it very nearly ruins the whole crop.
Recent Investigations place this dis
ease among the physiological trou
bles.
Bean Anthracnose. sometimes
called pod spot.) This fungus APP
sunken areas on stems and pods as
we'll as leaves. Those on the pods,
however, are much more noticeable
than on other parts of the plant. Va
rieties of the wax bean seem to be
more susceptible than the others,
resistant. The fungus is carried
largely through the agency of dis
eased seed. Clean culture and remov-
ing from the field all diseased stems
and stalks and the use of good seed
are the methods by which this trou-
tent.
Wilt of tomato. This is a bacte-
rial disease and widely spread in
stem or the whole plant will wilt
down. Growth stops and the plant
dies. The stem turns dingy green,
then brown and black and soon shriv-
els. Where diseased plants have
grown one year the infection seems
to get into the soil and will attack
tomato plants set in the same place
next season. The trouble seems to
be spread through the agency of in
sects. Therefore, place a check on
insects in the garden and rotate
crops. This same disease is sup
posed to attack other plants of this
family, such as the eggplant, pepper
and Irish potato.
Black Rot of Cabbage. This be-
longs to the bacterial class of dis
eases and first appears upon the
leaves as blackening Of the veins.
The affected portion rapidly in
creases in size. The discoloration
extends downward through the veins
to the stalk. Soon the stem is in
The general infection of the plant al
ways causes death. Sometimes other
rots may set in and hasten the death
of the plant. The disease will con-
tinue to develop in storage. The bac-
terra that cause the trouble are US
ually found in the soil. 1t is sup
posed that they may also be trans
mitted through the agency of seeds
or manure. The disease may be car
ried from field to field upon tools
used for cultivation or upon the feet
of laborers. AS yet no method of
taking UP and destroying of the dis
eeased plants as soon as the trouble
is noticed.
There are many other diseases in
the garden besides those above men
toned, but these discussed are the
most common.
Nematode Worms. The little nem-
atode worm, neither an insect nor
disease, inhabits many of our soils
In the south. These little pests,
when once they gain foothold in a
field, are almost impossible of exter-
mination. They attack a great many
of our vegetables as we'll as fruit
trees and other plants. When soil
becomes infected the best thing to
do is to rotate it with a crop that
they do not attack, making little
knots on them. AS a rule they do
not kill plants, but seriously retard
growth. Where land is high In fer
tility and cultivation good, a plGnt
may overcome this trouble and pro-
duce .profitably.
Bean, beet; blackberry. cabbage.
cowpeea, eggplant, fig, gourd, melon.
morning glory okra, parsnip, pea.
pear, peach, plum. potato, radish,
rose, spinach, sunf'ower, squash and
tomato are some of the plants known
to be attacked by the nematode.
These plants should not be put on
infected ground and they should not
follow each other in the general ro-
tation.
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