100 SEVENTH ANNUAL MEETING OF THE 
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we knew what was the matter. I do not know much about it; 
all I do know is that it is a very destructive pest. I dp pot 
know that I can give any information on the subject. I re¬ 
ceived notice a short time since that the Department of Agri~ 
culture would issue a bulletin on that subject, and it would 
be well for anyone interested in fruits of any kind to secure 
that bulletin so that they might know the pest when they 
saw it. The sooner it is killed the better. 
Prof. Rolfs —When the scale is abundant it causes the 
tree to look whiter than usual, though you would not notice 
it ten feet away. A badly infested tree may be recognized 
at a considerable distance; appearances are like that of a 
starved tree, often only a branch or half of the tree is at¬ 
tacked, then the appearance is quite striking. If the tree is 
only slightly infested it is quite difficult to discover. When 
the scale is abundant the bark is completely covered with it. 
Some one has said that they pile on six deep, and this seems 
almost literally true in bad cases. There are a number of 
scale insects that resemble this one, but this is the most de¬ 
structive one on our deciduous fruits. It is so small that it 
requires close looking to make it out. When full grown, it is 
circular in outline with a dark prominence in the center. 
These points may be seen by the use of a hand lens, or ordi¬ 
nary magnifying glass. It breeds continuously throughout 
the warm weather. The females being wingless prevents it 
from spreading except in the larval state. Birds, horses or 
mules while plowing, or the owner himself while working his 
orchard may carry the young insects from tree to tree. The 
young, or active, insects are scarcely discernible with the un¬ 
aided eye. Their color is a honey yellow. We should do all 
we could to stamp out this scale, for it is very destructive 
and will soon spread to other portions of our state. 
Mr. Healy — I would like to have a description of the 
scale from Prof. Rolfs. 
Prof. Rolfs —When the scale is abundant it causes the 
tree to look whiter. You would not notice it ten feet away,, 
but when you get close and hold it up by the end you will 
notice it is a little, round, whitish scale. You will find that 
it is nearly circular, and on the top it has a little prominence, 
a very peculiar form that belongs to that class of scales. 
There are two or three scales that resemble it, but the little 
prominence is peculiar to it. They pile right on top of the 
tree right over one another. The leaves are starved to death. 
They simply look as if the tree did not have fertilizer 
enough. You will say that it got struck by the cold or that 
you had not enough fertilizei; pf the right kind. It is hard to> 
