424 
THE NATIONAL NURSERYMAN 
Review, Hote Comment. 
Felix & Dykhuis, Boskoop, Holland, are distributing a 
trade list that is quite out of the ordinary. It lists a 
splendid lot of stock, is well gotten up and is really a val¬ 
uable handbook for the nurseryman on account of the 
full lists with descriptions of many lines such as paeonies, 
roses, etc. It indicates a business fully up with the 
times. 
A letter from Wick Hathaway, Madison, Ohio, states 
that he is so busy that he does not even have time to 
change his advertisement in The National Nurseryman. 
Like many other localities he is having the biggest fall 
business he has ever had. 
W. E. Campbell, of The Elm City Nursery Company, 
New Haven, Connecticut, characteristically described the 
conditions in many nurseries in the east when they are 
located in the vicinity of large cities or near manufactur¬ 
ing centers. 
“We have had to leave the office, doff our coats and 
hats and go to work, which has been rather trying on 
the physical constitution of one who has not done any 
active nursery work for a number of years, but we be¬ 
lieve we have been repaid in increased appetite, built 
up muscles, and greatly extended lung capacity.” 
Mr. Walter F. Webb, 202 Westminster Road, Roches¬ 
ter, N. Y., has severed his connections with the First Na¬ 
tional Nurseries, Herrick Seed Company and Brown 
Brothers Company, with all of whom he has been ac¬ 
tively associated as an officer for many years and in¬ 
tends to start a new Company under the name of the 
Guaranty Nursery Company. 
The American Peony Society has issued its Bulletin of 
Peony News No. 3, together with the proceedings of the 
Society for 1916. 
Those interested in Peonies will find a symposium of 
the newer foreign varieties, which is practically a ballot, 
showing the opinions of 19 members who have grown 
them and voted upon them. 
Copies of the Bulletin may be had by applying to the 
Secretary, Mr. A. P. Saunders, Clinton, N. Y. 
A new idea connected with horticultural catalogues is 
in operation on the West Coast. It is in the shape of 
Bulletins issued monthly under the name of “Horticul¬ 
tural Catalogue Service” and claims to be an indepen¬ 
dent catalogue, not controlled by any nurserymen or 
collection of nurseries. 
It lists free ten items from any nurseryman alphabeti¬ 
cally arranged and depends on separate advertisements 
for its financial success. 
Investigation of Rose Diseases 
By Dr. L. M. Massey, Specialist on Rose Disease Inves¬ 
tigations, Department of Plant Pathology at 
Cornell University 
A SPECIAL and extensive investigation of the di¬ 
seases of roses has been undertaken by the de¬ 
partment of Plant Pathology, Cornell University. 
This work, which was begun August 1, 1916, is being 
conducted in co-operation with the American Rose So¬ 
ciety, whose members have contributed towards the fin¬ 
ancial support of the undertaking. 
During the past three months much time has been 
spent in visiting rose plantings in northeastern United 
States, making a survey of diseases. The gardens and 
greenhouses of some thirty-five rose growers have been 
visited. The number and extent of the diseases present 
have been noted and specimens taken for further study. 
Growers have also materially aided the work by send¬ 
ing in specimens. These specimens havebeen examined and 
the grower advised as to the cause and control of the 
disease so far as our present knowledge and experience 
allows. 
Unfortunately, nothing is known concerning the con¬ 
trol of many diseases of the rose, and but little concern¬ 
ing even some of the most common diseases; and what 
little is known is mostly of an academical 
nature rather than of a practical nature 
and not accessible to the average grower. 
Every grower who has endeavored to obtain much in¬ 
formation upon any rose disease has been brought face 
to face with this unfortunate situation. It is for the 
correction of this condition, that members of the American 
Rose Society have enlisted the services of a plant path¬ 
ologist to investigate rose diseases and place the informa¬ 
tion before the growers. 
The preliminary survey has shown that the two most 
common diseases of the rose are the powdery mildew and 
the black spot, both on indoor and outdoor plants. These 
diseases have received the most attention of growers and 
plant pathologists in the past. It has been proved be¬ 
yond doubt that they are caused by fungi, the life-his¬ 
tories of the causal organisms have been partially worked 
out, and various suggestions or control offered. Con¬ 
siderable work remains to be done to determine the con¬ 
ditions which favor the development of these diseases 
and the best methods of treatment. It is the plan of the 
writer to publish a short article in the trade papers, in 
the near future, upon each of these diseases in which the 
known facts concerning them will be placed before the 
growers. 
However, the survey has revealed the fact that other 
diseases besides mildew and black spot cause rose 
growers considerable losses. In fact, many greenhouse 
men claim that these two diseases cause them little worry. 
Ophelia and American Beauty plants affected with a 
serious root- or crown-rot have been received from 
growers and observed by the writer, in visits to rose 
houses. The plant decays just below the surface of the 
soil, usually where the plant “breaks,” the developing 
branches being encircled by the rot. Soon the parts of 
