288 
THE NATIONAL NURSERYMAN 
lieving that those interested will add the considerable ad¬ 
ditional amount required. 
It is confidently believed that those who are opposed to 
a Chinese Wall plant policy for America, who think that 
we are entitled to other plants which may be discovered 
anywhere as valuable to us as have been the apple, the 
lilac, the potato, and countless other familiar but exotic 
plants in use today, will aid the work of this Committee 
in contributions and in effort. 
Great care will be used in expending the funds of the Commit¬ 
tee, none of which will be devoted to lobbying or the obtaining 
of influence. All expenditures will be authorized by the Com¬ 
mittee, and all payments carefully audited. In addition to their 
own contributions, the members of the Committee serve without 
pay and pay their own traveling and other expenses. 
You are therefore' asked to evidence your interest 
by a substantail subscription, to be sent to the Treas¬ 
urer of the Committee, Mr. T. A. Havemeyer, 50 Broad 
Street, New York City. 
Communications and information regarding this mat¬ 
ter may be sent to any member of the undersigned Exe¬ 
cutive Committee, or to its Secretary and Attorney, Mr. 
Herbert W. Schlaffhorst, care of Massachusetts Hor¬ 
ticultural Society, 300 Massachusetts Avenue, Boston, 
Mass. 
Executive Committee of the General Committee 
J. Horace McFarland, Chairman, 
Editor American Rose Annual, Harrisburg. Penna. 
T. A. Havemeyer, Treasurer, 
Horticultural Society of New York, 
50 Broad Street, New York City. 
Albert C. Burrage, 
Massachusetts Horticultural Society, 
85 Ames Building, Boston, Mass. 
James Boyd, 
President Pennsylvania Horticultural Society, 
65 Finance Building, Philadelphia, Pa. 
Frederic Cranefield, 
Secretary Wisconsin State Horticultural Society, 
701 Gay Building, Madison, Wis. 
Mrs. Francis King, 
President Woman's National Farm and Garden 
Association, Alma, Mich. 
Dr. George T. Moore, 
Director Missouri Botanical Garden, St. Louis. Mo 
Frederic R. Newbold, 
Horticultural Society of New York, 
109 E. 72d Street, New York Gity. 
Mrs. Percy Turnure, 
Garden Club of America, SO E. 60th Street, 
New York City. 
E. C. Vick, 
Secretary American Dahlia Society; Secretary 
American Sweet Pea Society. 
1328 Broadway, New York City. 
John C. Wister, 
President American Iris Society; Secretary Amer¬ 
ican Rose Society, 
606 Finance Building, Philadelphia, Pa. 
WHERE A QUARANTINE WOULD BE WELCOME 
"Meanwhile foreign importations of nursery stock are increas¬ 
ing in quantity, and although Continental growers cannot selTsc 
ridiculously cheap as before the War, thei? prices do Took small 
b> comparison with ours. There seems no possibility of getting 
Jmi t0 ! m ° Ve m the direction of restricting imports 8 
Of n hlS ha f a Jf armg on the matter of hard and fast regula¬ 
tion ol prices for home-grown plants.” 
The above clipping is from the Horticultural Trade 
Journal, an English publication. 
It goes without saying the English nurserymen and 
llorists would welcome a Quarantine 37. It is doubtful 
if they would object to it even if it was put in operation 
with the ostensible purpose of keeping disease and pests 
out ol the country as long as it kept the plants out also. 
WHAT ROOT STOCKS ARE WE USING,? 
Prof. W. L. Howard, University of California, Mountain 
View, California. 
The root-stock problem is an old one, but ever new to 
the fruit growers and nurserymen of California. Exper¬ 
ience has taught that certain fruit may be adapted to ad¬ 
verse soil conditions by using the right kind of root-stock. 
While there is much that we do not know about root¬ 
stocks, we do have sufficient information on the subject 
to make it worth while to review the present status as 
regards the general or special use of the well-known 
stocks we are using every year as we continue to plant 
orchards. 
Three years ago I made a survey of the nurseries of the 
state to find out just what stocks were then being used, 
assuming that the nurserymen were giving the people 
what they wanted. In other words, it seemed to be a 
safe assumption that the percentage of the different root- 
stock being used by the nurserymen was a current index 
of the extent to which such stocks were being planted. 
The interest in the results of this survey was so wide¬ 
spread that I have again canvassed the nurserymen in 
order to bring my figures up to date. 
Three years ago, the results secured were as follows: 
Stocks for Almonds— Peach, 44%; Almond, 56%. 
For Apricots— Apricot, 58%; Peach, 28%; Myrobolan, 
13%; Almond, 1%. 
For Cherries— Mazzard, 71%; Mahaleb, 26%; mis¬ 
cellaneous, 3%. 
For Peaches— Peach, 90%; Almond, Apricot and My¬ 
robolan, 10%. 
For Pears— Japanese, 63%; French, 33%; Quince, 4‘%. 
For Plums— Myrobolan, 60%; Peach, 37%; Almond, 
3%. 
For Prunes— Myrobolan, 64%; Peach, 24%; Almond, 
11%; Apricot, 1%. 
For Walnuts— Northern California Black, 99%; Mis¬ 
cellaneous, 1%. 
The survey just completed, which, of course, includes 
the trees planted during the present season, shows re¬ 
sults to be quite different in some particulars from what 
they were three years ago. At present a much larger per¬ 
centage ol almond root is being used as stock for al¬ 
monds, and much less peach root for the same purpose. 
The results for apricots show that apricot root is much 
less popular as a stock than formerly; that peach is about 
the same, and that myrobolan is used to a much greater 
extent than three years ago. 
In the main, the results for cherries are about as they 
were, although about 7% more Mazzard is being used 
than was previously reported, with a consequent de¬ 
crease in the amount of Mahaleb. 
We are now using a much greater percentage of peach 
ioot as a stock tor peaches than we were. Three years 
ago, almond, apricot and myrobolan made up 10% where¬ 
as myrobolan was not reported at all as a stock for 
peaches during my recent survey. 
The peicentage of Japanese stock for pears has jumped 
fi°m 63% to 76%, and the French stock has decreased 
from 33% to 20%. 
The results for plums and prunes have not changed 
materially, except that we are now using more apricot 
