ons of America. Fungicides are useless in combating
the disease and all that can be done is to exercise great care in
planting infected stock. It is doubtful whether crown-gall ever
seriously injures vines in northern regions, although it may
occasionally do so in the South.
In California there is a somewhat mysterious disease known as "Anaheim
disease," because of its having first made its appearance in the
vicinity of Anaheim. As near as can be learned, the disease first
appeared in 1884 and then spread rapidly from forty to fifty miles
from the point where it began its ravages, causing direct and indirect
loss of many millions of dollars, and leading to the abandonment of
grape-growing in some parts of southern California. Fortunately, in
recent years the Anaheim disease is less aggressive but still does
more or less damage. The nature and the treatment of this disease are
not as yet fully determined, although several experimenters are
studying the trouble. Californians whose vineyards suffer from this
disease should apply to the experiment station at Berkeley for the
latest information in regard to it.
Coulure is another trouble of the vine in California of which little
is yet known, either as to cause or treatment. The term signifies the
failure of the fruit to set or to remain on the clusters. The trouble
occurs in varying degrees from the loss of a few berries to the
complete shelling of the fruit from the stem. It is worse in some
localities than others and in some varieties than others. Various
causes have been assigned to the disease, chief of which, and most
probable, are unfavorable climatic conditions.
CONTROL OF INSECTS AND DISEASES
From the number of insects and diseases found on the grape, it would
seem that, literally, "pestilence walketh in darkness and destruction
wasteth at noonday" in the vineyards of the country. But not many of
the ills that grape-flesh is heir to are ever found in one region, and
the vineyard is seldom attacked by many diseases or insects in a
single season. There was a time, as we have said before, when
grape-growers were so beset by pests which they could not control,
that viticulture was one of the most uncertain fields in agriculture.
But one brilliant discovery after another has brought the pests of the
grape under the hand of man until now there are but few that need
cause much expense in treatment or worry as to the outcome.
Plants cannot be attacked by diseas
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