18 
of these diseases. This may possibly be found in fungicides used in the 
houses, before the plants are started or by their application to the soil 
and growing crops while in a young state. 
Amherst Agricultural College, Amherst, Mass. 
TREATMENT OF CRANBERRY SCALD AND CRANBERRY GALL- 
FUNGUS. 
By Byron D. Halsted. 
It has been determined by a thorough canvass that a large fraction of 
the cranberry crop is destroyed by the scald, sometimes called u rot.” 
The loss sometimes reaches as high as 65 per cent., and in many places 
it has rendered the growing of cranberries a profitless industry. 
A fungus is closely associated with this scald, and in no case has a 
soft berry been examined microscopically without the same fungus 
being present. The leaves, vines, and roots also of the plants bearing 
scalded berries, abound in the same fungus. In general structure, hab¬ 
its, and behavior, the fungus of the cranberry scald is closely related 
to the one causing the black-rot of the grape. As yet no fungicides 
have been tested upon the scald, but from its relationship to the black- 
rot of the grape it is only reasonable to infer that the same treatment 
might be efficacious. In view of the fact that the cranberry has small 
smooth thick leaves it is possible that the mixtures employed for the 
grape could be used with greater strength upon the former. However, a 
beginning can be made with the ammoniacal copper carbonate solution, 
directions for the preparation of which will be found elsewhere in this 
Journal. The amount of this solution to be applied per acre can not be 
stated because it will vary with the rankness of the viues. Apply for 
the first time as soon as the spring flooding is past, and again just before 
the blossoms unfold. The third application should be in midsummer, 
followed by two others at intervals of two weeks. This makes five spray¬ 
ings in all. The instruments to be used will depend much upon circum¬ 
stances. If the owner applies Paris green or London purple for the in¬ 
sect enemies of the cranberry, namely, the tip) worm, vine worm, etc., 
then the remedy for the scald can be applied with the same pump). 
There is much to be done in improving the sanitary conditions, if 
that term may be used, of the bogs. It is important to have perfect 
control of the water supply, and during the growing season, while keep- 
ing the bog moist enough for the iflants, have the ditches deep and 
free flowing that stagnant water can be kept from the roots of the 
iflants. Doubtless much depends upon having the soil of the bog in 
the best condition for the healthy growth of the iflants. Where the 
peat is sour and soaked with standing water the best conditions obtain 
for the scald. It may be that proper drainage, water control, and 
