
          118

all the trees we pulled up for examination (and we pulled
till tired), the small fibrous roots were dead and in a state
of decay, whilst roots as large as my finger, over which the
hordes of aphis had just passed to fresh fields of pasture,
were entirely sapless.  I was on a visit to Mr. Pullen to
learn somthing of the yellows and to get his views of the
cause,  and was not surprised when he rose up from the examination
of a tree, to hear him emphatically exclaim.-"This is the
yellows, and this, the profane wretch that causes it." x x

"For the past twenty years, I have been largely engaged
in growing fruit, my principal crop being peaches.  My attention
being called tothe Aphis in 1858 by Mr. Pullen, I
have made this insect a subject of careful observation, and
will, in as few words as possible, state the manner and the results,
with my conclusions.

"In 1856, I planted my first large orchard of peach trees
--about two hundred acres--using trees of my own growing, except
on about five acres at one corner of the field, on which 
I planted trees bought in New Jersey.  The trees were all
planted in good soil; were well attended to; grew so finely,
and presented such a healthy, handsome appearance, that I did
        