Newark post., 1911-06-14
2-FCSGCS DISEASES

added rsF-s green.
2-FuSGCs DISEASES
In discussing these diseases IT will net
be necessary TO prescribe 6 special reu-
edy for each Of them because the remedy
for one disease unless otherwise specI-
fed, applies 10 all Of them
AnIhEscrCse-This is fungus dis
ease which is known 70 attack the fruit
only. The trouble is characterized by
discolored sunken spots On the tomato
fruit In moist damp weather, these
spots enlarge and they involve rhe decay
Of the entire fruit. This disease is due
to the fungus eolletotrichum phonoides
tTscc) Chester, fungus which causes
heavy losses Of tomatoes in Delaware
Another disease Of the tomato fruit
is the one popularity snowu as black
rot. The trouble is due 70 z fungus
known as tmscrosporiun solsmi Z NJ
This fungus can only penetrate into
the fruit through & wound such as insect
bite or cracks formed through other fac.
tors The disease is manifested as a
black dot on the fruit These dots soon
enlarge into large black spots followed
whole fruit is involved and thus cs-
eayed. This disease is also commo1 TO
the potato plants on which il causes
disease known as Early Blight.
Leaf AoId-This IS { disease which at
taeks the leaf but very rarely the fruit.
Affected leaves first show small brown
spots which gradually increase in size
until the ncst OF the area is involved.
On the under surface Of these brown
spots Is found, the olivaceous growth Of
the fungus iCIadospariun fuIyum cke
The general effect Of this fungus IS often
TO cause plants TO defoliate entirely
Another serious tomato disease is the
leaf spot caused by the fungus septoria
iyeopsrsici SpIg. This disease is char
actertzed by numerous small angular
spots, pale in the cente-s, berdered with
a brown hand. IRE affected leaves Us
ually show the tendency o. curling dor
sally. When the disease is very severe
petioles, twiEgs and even the tomato
fruits are known TO be affected with
these little spots. However, this condi-
tion IS usually rare
The sleeping disease Of the tomato is
another serious disease II is caused by
the fungus FUsarium Oryspurium Schl,
which s also the cause Of the dry rot
Of the potatoes. As the L&Ue Of this
disease Indicate. the fungus invaGes the
tbTo vascular bundles OF the bundles CO.
strUcttcg the sap fow and causing a
whiting .ustifying the name Of sleeping
disease With the exception ot tie lat
ter, all TIRE above enumerated diseases
can be controlled u spraying at the
intervals Of last txo weeks Tor less Of
ten according 10 the weather. with Bor-
deauz Mixture formula 4-.-5G To this
should also te added Paris green or ar
senate OF lead TO cheek the spread Of in
iurioUs Insects which help II dissemiust-
ing the fungus diseases.
PHYSIOLOGICAL DISEASES.
This third group includes q class Of
obscure disease, obscure in the sense
that ne know nothing as yet ct their
cause Al example OF this is the mosaic
disease Of disease supposed TO bs due
to poor cultivation, 10 tad weather, 10
enzgms troubles, all combined In such
eases ss well as in any Of the cases
above mentioned the tomato grower must
AoL eAAet- ~ ALC c sure Es!l1I II TIE
spraying remedies When orce z plant
is affected with & fungus disease, no
amount Of spraying Eill cure il.
SPRAYING
However, while spraying will nor cure,
1t will protect the healthy plants from
getting contaminated, and il will also
kill the spares from the surface Of The
affected plant Hence We cannot en-