Northern Nut Growers Association Report of the Proceedings at the Thirty-Eighth Annual Meeting: Guelph, Ontario, September 3, 4, 5, 1947
Science
Northern Nut Growers Association Report of the Proceedings at the Thirty-Eighth Annual Meeting: Guelph, Ontario, September 3, 4, 5, 1947
Northern Nut Growers Association -- Periodicals; Nut trees -- Periodicals; Nuts -- Periodicals
Crane: "The Chinese harvest their chestnuts just as soon as the bur
cracks. They do not wait for the nuts to drop from the trees but harvest
the nuts from the trees and store in covered pottery jars. They plant in
the fall of the year. They do not hold nuts for any length of time."
Corsan: "How about charcoal?"
G. Smith: "Charcoal is good to store nuts in. They are shipped from
China that way."
Smith: "Would chestnuts stand carbon bisulphide for getting the weevil
out, or is the hot water treatment better?"
Crane: "Carbon bisulphide treatment is dangerous, it will kill weevils
but it will also kill the nuts so they will not germinate. Unless
precautions are used it may cause an explosion and fire. Methyl bromide
treatment is better."
Stoke: "The hot water treatment is the best. It consists of immersing
the nuts in water at 120 degrees F. for forty minutes."
Hemming: "I have raised about 100,000 seedlings and have never seen
blight on any of my seedlings."
Dr. Smith: "A tree needs usually to be as big as the small end of a
baseball bat before the bark opens enough to let in the blight spores."
Stoke: "Blight begins where there is rough bark which provides lodgment
for the spores. Rough bark and moisture result in blight, hence the
disease usually starts near the ground."
Crane: "The blight problem in the growing of chestnuts has often been
stressed. I think you will have more loss from sunscald and root rot
than you will from blight. Blight is a minor trouble with us. The
Chinese chestnut naturally grows with a low head. It is a mistake to cut
off the low branches on the trees until they attain some size, they can
then be cut off."
Stoke: "Regarding the protection of nut trees against winter sun scald,
I find that if you take ordinary aluminum paint and paint the south and
southwest side of nut trees it will last for two years."
Dr. Smith: "Chestnut trees have blighted for me where the water table
was too high and trees of same origin or better drained ground nearby
did not blight. Blight is often a sign that the tree wants something it
lacks--much like disease in humans."
Results of a Chinese Chestnut Rootstock Experiment
J. W. McKAY[4]
Introduction
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