t from North China that was
extremely hardy and lived through that winter almost undamaged. The
nut, though, had a bitter tang, and Pomeroy's nuts were quite sweet and
delicious, but I haven't a Pomeroy on the place. They are all stone
dead.

[2] See Mr. Gellatly's paper in this volume.--Ed

DR. MacDANIELS: Thank you, Mr. Corsan.

Mr. Harry Weber will give us a paper by Gilbert Becker on Persian and
black walnuts in Michigan.

Grafted Black and Persian Walnuts in Michigan

GILBERT BECKER, Climax, Michigan

The performance of grafted Persian walnuts in southwestern Michigan has
been so satisfactory that I would not hesitate to recommend them, in
preference to grafted black walnuts. One of the nicest things about
grafted Persian walnuts is that when they start to produce nuts, they
bear _every_ year--there is not an off-season, as with the black walnut.
Our locality may be especially suitable to them. Our skies are cloudy,
and it is cool through much of the spring, thus preventing early growth
before conditions are right for the buds to develop unhampered by late
spring frosts. We have had an occasional late freeze that caused the
lower nuts to drop, while the higher ones remained on the tree,
unharmed.

In this article I would like to answer briefly our most often asked
question, as to which varieties do we think best from our experience
with them? Our climate must be quite different from that found around
Ithaca, New York, because we have never had winter injury in certain
Persian varieties, as occurs in that area. (And we had 26 below zero in
February, 1949.) An instance of this difference is in regard to the
McDermid variety, which happens to be our choice. We honestly believe
the Crath No. 1 variety to have great commercial possibilities, because
of its heavy production of large, thin-shelled nuts, of average quality.
The Broadview is another. The Carpathian "D", apparently, pollinates the
Crath No. 1 well. This one, however, is small, with a very white kernel
that is sweet. We have many other varieties producing, some with their
first crop this year; but we are not able to recommend any of them yet.

The black walnut varieties must be rather limited, because of the
brooming disease trouble; so we select from those that are quite able to
resist it, or that seem immune to the trouble. The Thomas and Grundy
varieties lead with us, and two other local nuts, the Adams and the
Climax, rate high in our es