
          20

of the gardens of the Horticultural Society at Cheswick London]
has seen one instance only of a disease in a peach tree,
resembling in its character the yellows.  It was an American
tree, I think a George IV, which was budded on a peach bottom,
and trained against a south wall.  It ripened its fruit prematurely,
pushed out the cluster of small leaves, became
quite yellow in foliage and finally died. x x The disease he
referred to was probably imported in the tree from America.
If so, it does not seem to have communicated the yellows to
any of the English trees."-- H. W. Sargent in Account of  "A
Visit to the London Horticultural Society's Garden." The
Horticulturist, (Downing's), 1849. p.16.

"We have satisfied ourselves that the mere contact of a
knife which has been used in pruning a tree diseased with the
yellows, with the sap vessels of a healthy tree, is sufficient
to communicate the yellows to the latter."-- A. J. Downing. The
Horticulturist, Albany, 1849, p. 563.

"Fifteen years ago <s>1843</s>1834 there was scarcely a tree in the
vicinity of Newburgh, [N.Y.] that was note more or less diseased
with the yellows.  By pursuing thte course we have indicated
[(digging up and burning every vestige)] the disease has almost
wholly disappeared."--A. J. Downing, l.c., p. 563.
        