50 
FLORIDA STATE HORTICULTURAL SOCIETY 
the canker as it develops. We think we 
have located all of the canker infections; 
that is, the centers. Where we are find¬ 
ing canker now is in the old sore spots in 
the old locations where canker has been 
present, and we have fought it, and fought 
it, but once in awhile it breaks out anew. 
We may think we have it eradicated and 
inspect it daily or weekly for a year and 
think it is entirely cleaned out, and then 
suddenly it will break out. 
If we have already eradicated the dis¬ 
ease from three-fourths of the properties 
in Florida; if we have already located the 
last center of infection; if we still con¬ 
tinue the process of eradication for the 
next two years, making the same record 
we have in the past two years, it looks as 
though eradication would be accomplish¬ 
ed at the end of another two years. (Ap¬ 
plause ). 
DISCUSSION 
Mr. M. E. Gillett; I would like to ask 
the gentlemen if canker has ever appear¬ 
ed again in any of the groves from which 
the quarantine has been removed. 
Mr. Stirling. Of the 306 properties 
from which the quarantine has been re¬ 
moved, there have been three properties 
that have shown infection; but we are not 
sure that the canker was present in that 
property at the time the quarantine was 
removed. One of them, for instance, 
was very close to another section which 
was infected and it is very probable that 
the disease was carried into that property 
from the diseased grove in proximity. A 
grove, of course, can be infected again 
and again. 
The other two re-infections were simi¬ 
lar. 
