LUTHER BURBANK 
After these reformatory measures have been 
carried out, it remains to guard the trees against 
the attacks of insects with some protective spray. 
The particular insect or fungus-destroying mix- 
ture required will of course depend upon the indi- 
vidual case. The Bordeaux mixture is doubtless 
used more than any other single spray for fungus 
diseases and for the codling moth in apples. A 
lime-salt-sulphur solution is the general mixture 
for San Jose scale. In general, it should be re- 
called that spraying is a preventive measure rather 
than a cure. Bordeaux mixture, for example, will 
prevent the appearance of the fungus disease com- 
monly called scab. The attacks of the codling 
moth may be met in the same manner; but as there 
is a second crop of these moths, another spraying 
may be necessary later in the season. 
BATTLING THE PEsTS 
I should add that as to this matter of fighting 
plant diseases and pests with the spray, as also in 
the matter of the renovation of neglected orchards, 
I must offer advice rather at second hand. My 
own orchards, as a matter of course, have not been 
neglected. While my orchards are cultivated 
thoroughly, so that a weed is seldom seen, very 
little fertilizer is used and rarely any spraying, as 
my object is to obtain varieties that are immune 
to fungus and insect diseases, and which will 
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