FLORIDA STATE HORTICULTURAL SOCIETY. 
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tell what is the matter with the tree. It is very readily over- 
looked. It has no particular season for breeding. You will 
find young and half-grown ones all the year round as long as 
the weather is warm enough. They may be dormant for a 
few weeks in cold weather. We should try to stamp it out, 
for it is very destructive and it will spread. 
Mr. Healy —Does it attack the leaves ? 
Prof. Rolfs —I have never seen it on the leaves. It usually 
attacks the young branches. My work with it has been just 
after the leaves have come on the tree. I would not say that 
it does not attack the leaves, but the especial damage is done 
to the limbs of the peach, the pear and the various forms of 
plum it attacks. It has not been known to hurt a citrus 
tree. It does not like the citrus. 
Mr. Healy —Have you ever seen it on the pecan or Japan¬ 
ese chestnut? 
Prof. Rolfs —I know of no case that has been reported on 
those trees. I will say that on these trees there is a scale 
belonging to the same genus, but it is a larger insect. 
Mr. Healy —I heard a gentleman say to-day that he had 
Japanese chestnuts and that they made a perfect shell, but in 
the shell of the nut there was nothing but a little mould. 
That was all he could get. Now I got perfect fruit from my 
trees. Is there any insect that will cause that ? 
Prof. Rolfs —What are the conditions? Is it a tree stand* 
ing off by itself? 
Mr. Healy —Mr. Brown will tell us about this. 
A. H. Brown—I have a row of these trees. I think there 
are ten or a dozen in a row. They are set in the center of a 
young grove, and receive the same cultivation that the or¬ 
anges do. 
Prof. Rolfs —I asked this question because, as is well 
known to horticulturists, the pistilate and stamenate flower* 
of the chestnut are borne on separate trees, and if you happen 
to get a grove of trees that produce only pistilate flowers, 
there will be burrs without fruit. I have seen this happen with 
the wild chestnut. 
Mr. Brown —Where is the stock secured from which the 
Japanese chestnuts are grown ? 
Mr. Rolfs —I am not familiar with this. Mr. Taber may 
be able to tell us. 
G. L. Taber —The Japanese chestnut is generally sent out 
as a seedling. There have been a good many grafting trees 
sent out and they were good, but the seedlings generally pro¬ 
duce nothing. The nuts are generally about the same. As 
