e next step is to bind together the parts being grafted, winding
strong, cotton string firmly around the cut with its scion enclosed,
covering practically all of the vertical cut of the inverted T. Finally,
melted paraffin--not too hot--is applied to the union, every part being
carefully covered in order to exclude air and thus prevent drying out.
We use Clarke's melter which, with adjustment of the flame, will keep
the paraffin at a temperature slightly above the melting point and thus
will not get too hot. Grafting wax may also be used instead of paraffin.
The best time to perform the operation in Connecticut is during April or
early May.
Our first scions or inarches, grafted in 1937, are now 6 inches in
diameter at ground level and constitute the main tree. If they become
blighted, other suckers are inarched into them, and so on. The purpose
of the inarching is to restore the communication between leaves and
roots, which is so essential to the life and health of the tree, and
which the diseased bark of the blight lesion interrupts, eventually
causing girdling and death of the trunk or branch attacked. A series of
these inarchings of different ages is shown herewith. (Fig. 2.) On our
plantations we no longer dread the chestnut blight, since we can usually
circumvent it by this method. However, with the American chestnut,
because the fungus advances rapidly in this species, the girdling is
often completed before the scions can take hold. Therefore, with that
species or with the least resistant hybrids the method is often though
not always ineffectual.
This method of grafting is not new. It is similar to bridge grafting and
has been known and practiced for centuries. The only credit we can claim
is for its application to the chestnut blight as a method of control.
MR. CHASE: We will now hear from Mr. George Salzer, Rochester, New York,
"Experiences with Chestnuts in Nursery and Orchard in Western New York."
Mr. Salzer.
Experiences with Chestnuts in Nursery and Orchard in Western New York
GEORGE SALZER, Rochester, New York
My work with Chinese chestnut trees during the past ten years has been
most interesting. The first trees were grown in our back-yard garden;
then, when more seed was available locally, a building lot was purchased
for use as a nursery. Seed is planted in the spring because when fall
planting was tried, the rodents took most of the nuts.
Up until last year, chestnut seed was stra
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