West-Jersey pioneer., 1880-06-10
NEW JERSEY AGRICULTURAL
EXPERIMENT STATION.

| The Station has received from E. Will
liams Esq, of Montclair, Essex county,
specimens Of Raspberry canes which have
been killed by some cause. He writes that
the disease prevails over a wide extent of
country, that it has entirely ruined some
J plantations and it's injurious effects are ex-
| perienced in many others. The specimens
were submitted to examination by the Cam
den Microscopical Society and the following
| report has been received from them:
To the N j. Agricultural Experiment Station.
The following report gives the result of the ex-
animation of the Raspberry canes, received from
the Director. Joseph L. DeLaCour
Secretary G. M Society.
To the Microscopic Society of Camden.
The Committee on Botany to whom was referred
for examination the stems of Rubus, submits this
report, as the result of the investigation.
The canes were found to have their epidermis
ruptured in many places, the result of a growth OF
a fungus which had attacked them either during
the Winter or in the early Spring months In order
to determine the species, one Of the canes was
submitted to J. B. Ellis, Newfeld, N. j., reliable
authority on microscopic iungi. have his reply
as follows:-
May 8, 1880
On receiving the stems of Rubus, went and
looked at my red raspberries which were all killed
to the ground last Winter and found the canes
near the ground had the bark ruptured like your
specimens. The trouble with my canes was the
red rust tUredO) which took the leaves off, the
middle of last Summer, thus enfeebng them so
that they died before the middle of January. There
was fungus on one of your specimens. an Aster-
oma perhaps, or the mycelium of some fungus, but
do not think this caused the trouble. If, as in
my case. the Uredo was the cause, the prevention
of this would be the remedy. to effect which enrich
the ground and cultivate well to cause strong
growth, and if necessary further apply lime or
sulphur to the affected leaves
Yours, j. B. ELLIS
In this instance as in many others. we may see
that weakened or diseased condition, offers the
opportunity for fungold attack showing by anal
ogy the intimate relations between vegetable and
animal life. When our systems are reduced from
their normal condition by over exertion, or by
weakened vitality, our bodies are more liable to
disease than if the norm al condition be maintained
II the growing plant is kept healthy and vigorous
fungold attacks detrimental to its existence are
not to be expected as the conditions are not offered
for them. This healthy condition of vegetable
growth can best be had by cultivation, and sup
ply of good manure in proper season. And here
must be sought the remedy in the of the Rubus
blight
ISAAC G. MARTINDALE,
5th month 10th, 1880. Chairman.
The best fertilizers for promoting the
healthy growth Of the raspberry will proba-
bly, be barnyard manure with from 200 to
400 pounds of Murate or Sulphate of Potash
per acre. In case barn yard manure can
not be got the potash manures may be used
alone broadcast, or they may be composted
with muck or loan. In any case, however,
care must be taken to have the manures
well mixed with the soil, so that they may
not injure the plants.
GEORGE H. Cook,
Director.