FLORIDA STATE HORTICULTURAL SOCIETY 
125 
as, but had never seen it in Japan. W. 
C. Grilling, of Grand Bay, Alabama, first 
saw it on C. T. seedlings from Japan, in 
Texas. Mr. J. Klumb, Manager of the 
Mississippi Farms Company, of Wiggins, 
Mississippi, first saw it in 1911 on C. T. 
seedlings imported from Japan. That all 
of this disease in Florida has not been 
sent to us directly from Texas is made 
clear in a letter just recently received from 
J. H. Giradeau, Jr., who imported the C. 
T. Seedlings for two of Ithe infected 
plantings at Mbnticello. He writes: “I 
remember the blocks of trifoliata stock 
you mention, and these were imported 
stock, directly from Japan.” 
To what extent citrus canker is pre¬ 
valent in Japan is not known. That it is 
there, was recently demonstrated beyond 
doubt by the receipt of specimens of this 
disease on leaf and rind of navel orange, 
directly from Japan. Professor B. F. 
Floyd, of the Florida Experiment Sta¬ 
tion, received these specimens during the 
middle of May, from a Japanese Plant 
Pathologist at the Kyu-shu Laboratory, 
Imperial Agricultural Experiment Station, 
Kumamoto, Japan. They were labeled 
“scab,” indicating that citrus canker has 
hitherto been mistaken for citrus scab by 
the Japanese. That is exactly what hap¬ 
pened in this country—the first speci¬ 
mens of canker sent in were diagnosed as 
“scab;” and it was only when an abun¬ 
dance of material became available that 
the writer successfully prevailed in his be¬ 
lief that the disease was not citrus scab 
(Cladospbrium citri ). 
CAUSE OF CITRUS CANKER 
This has been recently determined by 
Professor H. E. Stevens, of the Florida 
Experiment Station, to be a fungus. 
THE SITUATION IN FLORIDA 
All the infected stock at Monticello, 
except a small isolated block, has been 
dug and piled ready to be burnt. The 
small isolated block just referred to has 
been cut back to stumps and sprayed with 
Bordeaux mixture under the writer’s 
supervision, and the owners will spray it 
several times more. 
The infection at Silver Palm has been 
repeatedly treated with Bordeaux mix¬ 
ture, but some of the disease can still be 
found. Arrangements are being per¬ 
fected to cut back all this stock to single 
stems or stumps and paint it with 2-2-2 
Bordeaux, or 50 per cent, carbolinium. 
The Florida Growers and Shipper’s 
League, of which Mr. Lloyd S. Tenny 
is Secretary-Manager, are raising 2,000 
dollars to assist in discovering' new in¬ 
fections and to advise with the owners 
as to the proper methods to be employed 
for eradicating them. It is planned to 
place a regular deputy, under the direc¬ 
tion of this office, but paid by the League, 
in the field - for this purpose. He will 
begin to make this inspection in south 
Dade County, and later in other parts of 
the State where infections are suspected. 
Shipment of citrus stock into Florida, 
from infected localities in the other Gulf 
States, have been made, and it is planned 
to look these up as soon as possible. At 
least two nurserymen in Alabama have 
furnished the writer with a list of their 
