DISEASES OF THE CRANBERRY. 65
manner. The vine of last year will have started
spears or uprights, in that season those spears have
not attained their growth. In the following spring
they will become taller, and the new growth will be
perceptible by the contrast. The former year's growth
has a dark hue, and. stronger stem; the new growth
is thinner, green in appearance, and altogether more
delicate. " The worm begins its ravages from the
point that the new growth- has started. It does not
descend down the old growth, but from the base of
the new spring growth it begins its operations, working upward."'* This insect comes in swarms. It
alights on the leaves, and extracts the moisture.
There seems to be in the vine or young leaf a juice
which by them is sought after. When it is present it
is known by the vine being webbed up and appearing
as though it was suffering from the fire blight.
At the period when these attacks are made, there is
some degree of certainty. It is most frequently immediately after blossoming time, and their ravages are
often fatal to the crop of that yard which they visit.
There is something singular about the plan upon
which they act, but as it is new, we must describe that
action, leaving the ascertaining of the cause thereof to
further research and more experience. We are familiar with the situation of a large pond which is bordered
* Howes Chapman, Esq. , Joshua 0. Howes, Esq.
DISEASES OF THE CRANBERRY. 65
manner. The vine of last year will have started
spears or uprights, in that season those spears have
not attained their growth. In the following spring
they will become taller, and the new growth will be
perceptible by the contrast. The former year's growth
has a dark hue, and. stronger stem; the new growth
is thinner, green in appearance, and altogether more
delicate. " The worm begins its ravages from the
point that the new growth- has started. It does not
descend down the old growth, but from the base of
the new spring growth it begins its operations, working upward."'* This insect comes in swarms. It
alights on the leaves, and extracts the moisture.
There seems to be in the vine or young leaf a juice
which by them is sought after. When it is present it
is known by the vine being webbed up and appearing
as though it was suffering from the fire blight.
At the period when these attacks are made, there is
some degree of certainty. It is most frequently immediately after blossoming time, and their ravages are
often fatal to the crop of that yard which they visit.
There is something singular about the plan upon
which they act, but as it is new, we must describe that
action, leaving the ascertaining of the cause thereof to
further research and more experience. We are familiar with the situation of a large pond which is bordered
* Howes Chapman, Esq. , Joshua 0. Howes, Esq.
