This section is from the book "The Gardener's Monthly And Horticulturist V18", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
Those grape growers about Kelley's Island, who were for so long a time sure Mr. Riley must be mistaken about the ravages of the Phylloxera, seem to have reconsidered the matter more favorably. One gentleman now writes to the Ohio Farmer:
"Some twelve years ago I set out a vineyard of ten acres, mostly Catawbas, with Cincinnati vines. These vines had some knots on the roots, but I then did not know any better than to set them; now these Catawbas have all failed. From personal observation and experience I am forced to believe in the theory of some grape-growers of much experience, that the Phylloxera is the cause of leaf mildew and grape rot; for certainly, if during the summer the new grape roots are consumed, there is nothing to sustain and mature the leaf and fruit. It is very natural to suppose that this insect, like many others, after a certain period will disappear, but experience is against this theory."
But our friend must not go too far in the other direction, for there is often mildew and grape rot independent of Phylloxera.