48 
FLORIDA STATE HORTICULTURAL SOCIETY. 
increasing in size. In groves where one 
notices considerable dropping of fruit, this 
disease should be suspected at once and 
a careful examination made for it. If 
the fruit is dropping from this cause, 
spray wtih an ammonical solution copper 
cai;bonate (ammonical copper carbonate). 
In using this fungicide, the spray should 
be directed toward the fruit as much as 
possible, keeping it away from the leaves 
and branches of the tree. We know from' 
experience that an application of fungi¬ 
cide is pretty certain to be followed by 
an attack of scale insects, since the fungi¬ 
cide kills off the fungus which attacks 
the scale insects, as well as the fungi 
which attacks the fruit. 
Mr. Gibbs—Did I understand you to 
say that you threw a good, strong spray 
upwards right into- the bloom? 
Prof. Rolfs.—Yes, we did. But the 
rains and dew carry the spores downward, 
and by spraying downward the fungicides 
follow the paths of the rain and dew 
drops. 
Mr. Skinner—I want to ask a question, 
too. We are all interested in the buying 
of nursery stock. We don’t want to get 
any more insects than we can possibly 
help, and I want to bring up a point that 
has been in my mind for some time. When 
the state inspector signs a certificate, say¬ 
ing that there is no white fly or other 
insects in a nursery, I think we ought to 
be able tO' place dependence on that certifi¬ 
cate I understand that last year some 
nurseries got certificates saying that they 
were free from white flies when I knew 
T 
positively that they did have white flies, 
and I think we should insist that if certifi¬ 
cates are given they should be honestly 
given; If the nursery that has white fly 
will clean their trees and promise to do 
the best they can to get them out, they 
should have a certificate to that effect, 
but they should not have a certificate say¬ 
ing that they are free from white flies. 
I think the experimient station, or who¬ 
ever gives the certificates, should give 
them honestly. I would like to make a 
motion that this society, as a body and 
as a society, shall request whoever is in 
authority to give these certificates that 
they give them strictly in accordance with 
the law, and not give certificates that are 
no good. 
Dr. Berger—I wish to say that these . 
certificates were given to the best of my 
knowledge, honestly and honorably. If 
there were any white flies I certainly did 
not know it. I know that so far as I am 
concerned I did not give a single certi¬ 
ficate where I had any doubt that the cer¬ 
tificates would not be telling the truth. 
Mr. Skinner—^How do your certificates 
read? Do they all read one way? 
Dr. Berger—Yes, sir. 
Mr. Skinner—^That this nursery is free 
from white fly? 
Dr. Berger—Yes, sir. 
Mr. Skinner—I will not mention any 
names, but I know of certificates being 
given when it was a patent fact known to 
everybody that the certificates were given 
when they did have white flies. I think 
the growers should have some protection. 
Mr. Bell—I move that a committee be 
appointed by the president to examine in¬ 
to this matter and report at some future 
meeting the course they think this society 
should take in relation to it. 
Prof. Rolfs—^In regard to the matter 
of giving these certificates that are given 
to the nurseries in Florida. The other 
states in the Union require that stock shall 
be certified before it can be shipped. The 
