FLORIDA STATE HORTICULTURAL SOCIETY 
101 
trees burned immediately on being found, 
the once-a-week inspection is kept up for 
several weqks after the last canker is 
found, and then the period between the 
inspections is lengthened. 
Twenty of the infected groves have de¬ 
veloped no canker for over three months, 
and some of these for a much longer 
period. In eight groves where we have 
found only slight infection, we hope no 
more canker will be found. We have 
nineteen groves on the active list, in which 
canker has been found and in which we 
believe canker still exists. 
We have traced the source of infection 
in almost every instance, either by the 
location, or by the agent that carried it. 
Of the forty-seven infections in our ter¬ 
ritory, seventeen are at Larkins in the im¬ 
mediate vicinity of one of the originally 
infected nurseries. Nineteen are in the 
Miami section, and are in the vicinity of 
the other originally infected nursery. 
Eleven infections are north of Little 
River, at four different points about three 
miles apart, and, incidentally, are every 
one of them in groves set with trees from 
infected nurseries. 
Twenty of our infections have been in 
groves where trees from one of the infect¬ 
ed nurseries were set. Twenty-five are 
in the immediate vicinity of the two origi¬ 
nally infected nurseries. And two of the 
infections we have been unable to account 
for, but strongly suspect the birds, but 
can’t prove it. 
We always try to trace the source of 
infection, so that it will teach us what to 
avoid in handling the work. 
There are a number of cases where we 
have reason to believe that the disease 
was brought in by men who had been 
working among cankered trees. One case 
where a calf got loose and wandered 
about in a grove, that afterwards devel¬ 
oped canker. The calf was brought home 
and turned loose in his owner’s grove, 
where he did a good job in distributing 
canker. Another case within the city 
limits, is where the ice wagon is held re¬ 
sponsible for spreading canker. We have 
had three cases of canker on trees along 
paths through groves, where men who 
had worked among diseased trees, traveled 
to and from their work. Loose horses 
feeding about in cankered groves have in 
several instances been the means of dis¬ 
tributing canker. Birds are also blamed, 
where canker has been found in the tops 
of trees, and grasshoppers have carried 
it from tree to tree in groves already in¬ 
fected. Anything that moves about in a 
cankered grove, and that comes in con¬ 
tact with the trees is liable to spread the 
disease. 
We supply posted notices and ask all 
grove owners to post their lands, and to 
let no strangers in their groves, and, when 
putting a new man to work, to be sure 
that he has not been working in a diseased 
grove. These things we ask of all the 
grove owners. To those who have canker 
in their groves we request, that all work 
in the grove be stopped, and that no one 
be allowed in their groves except the in¬ 
spectors. In many instances, with the 
young groves this has been done, but in 
the bearing groves most of the owners 
have picked the fruit from trees not af¬ 
fected with canker. 
In trying to eradicate the disease, we 
have found that the use of the ordinary 
