
          105

"The peach growers of N.J. consider an orchard worth nothing
after the age of 9 years.  At the time they root out all the
trees as they would so many corn stumps, and use the land for general
crops, planting a young orchard of seedling each year to make
good the loss."- Penhallow, Ibid., p. 28.

Yellows was present at Amherst, Mass,in 1878. Tr. Mass. Hort.
Soc. Part I, p. 120 [and in 1890!]

Peach Culture -- W. H. Ravenell.- In The Land We Love. Vol.
3, p. 257.

Peach Culture in Delaware - By Lodge. Harpers mag. Vol.
41. p. 511.

"Very recent examinations of material sent from Michigan conclusively
confirms my opinion that the yellows of the peach tree is
caused by a similar organism.  In the cells of an infected shoot
I find very little stored starch, but numerous bacteria.  These
are seemingly different, under a one-tenth Tolles' or Spencer's
objective, from the bacteria of the pear and apple.  Compared with
the latter they are long and slender, measuring about .001 mm. by
.0035 mm.  They consist of several joints, but little longer than
wide in what appears to be the typical forms."  T. J. Burrill.-
        