THE COUNTRY HOME [CHAPTER 
ting, after ridding them of the worms. It is also 
advisable for both canker worms and cut worms 
that we spray them with Paris green. This work 
must be done very promptly and very thoroughly; 
throwing a scattered spray that reaches half of 
the tree does little good. 
This paragraph must deal with a trouble which 
I confess is most difficult to manage; I refer to the 
different varieties of aphides or lice that infest our 
fruit trees, and sometimes our lawn trees. No one 
has yet devised any method whereby we can com- 
pletely master these insignificant creatures. The 
hop louse appears first on plum trees and on buck- 
thorn hedges, early in the spring. After breeding 
several generations, to the great annoyance of tree 
growers, it turns a generation loose into the hop 
yards. The destruction wrought is often so great 
as to make picking hops not worth the while. Our 
remedy, so far as we have any remedy, is spraying 
with kerosene emulsion, or with whale oil soap, or 
both combined. As the leaves curl up very quickly 
under the influence of these parasites, it is very 
difficult to hit them all with spray. You must go 
over and over again, day after day, until you find 
that you are making some impression. Take a 
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