
          35

"I am satisfied that it comes up from the roots to the top. x
x This fact I have learned by experience in growing peaches
under glass.  We put our trees in our house in December
without a sign of aphis on the tops; in a few days I find
full grown ones on the trees, and in a short time there are
myriads of them.  x x We never see the winged insect, so
common among most aphides. x x We generally find them on
the roots in autumn, say November and at any time during
winter [we find them] in our orchard house."  Gard. Mo. 1884. p. 303.

Mr. Lorin Blodgett says: It [aphis] has killed every
seedling peach on my grounds and works away at the roots yet."
Ibid. p. 336.

Thos. Meehan says, in Gard. Mo., 1884, p. 94: "At the end 
of the last century we find in the literature of the time
many complaints about short-lived nature of the tree of
late years, and in 1805 [wrong date], the American Philosophical
Society offered a premium of $66, for the best essay
which should point out the cause and the remedy for this
disease."

"It seems to us that the difficiency[defficiency] noted by Prof. Penhallow
        