ot. Prof. Reed reports witches broom attacking some trees in the South
and one case of this disease was observed by the writer in Ontario on a
Siebold-butternut hybrid. Notwithstanding these defects it is believed
that the Japanese walnut is less attacked by disease and insects than
most other species of nut trees.

_Opinion of Observers_

The opinion of a group of people on the merits or defects of a tree
species or project is worthy of consideration. In order to get an
expression of opinion as to the merits of the Japanese walnut the
following question was asked: Do you consider the better strains of
Japanese walnut worthy of more extended planting? The answers to this
inquiry were numerous and varied. The great majority were in favor of
increased plantings but a few were somewhat dubious. Nearly every one
agreed that the species possessed marked beauty and was worthy of more
extended planting as an ornamental. Some gave preference to the nuts
over the black and English but the majority thought the quality was not
quite up to the standard of these two species. Some observers reported
favorably on the heartnut for culinary purposes and as an ingredient of
ice cream and candy. With these latter comments I have had personal
experience and can heartily agree.

_Summary_

From the evidence furnished by correspondents and from personal
observation the good qualities of the Japanese walnut may be summed up
as follows:

Rapid growth, marked beauty of form and foliage, early bearing,
productiveness, and more than average hardiness to winter cold. The nuts
from superior trees are easier to crack than the butternut, hickory and
black walnut, but not so easy as the pecan and Persian walnut. These
superior varieties yield nuts with a mild flavor which appeals to the
taste of many people, but others think the flavor is not quite
pronounced enough.

This species crosses readily with the butternut and offers interesting
possibilities for the plant breeder.

The trees appear to be somewhat less susceptible to insects and diseases
than other walnuts, but this may not always hold good.

The defects of the Japanese walnut most frequently mentioned are lack of
flavor and pollination deficiencies. Some trees produce staminate
flowers too early for proper pollination and thus do not yield a crop
unless another good pollinator grows nearby.

Susceptibility to sun-scald and to San Jose scale are some other
weaknesses. Many of