TO 
THE CODLING MOTH. 
sprayed with the same mixture May 18th and again 
May 7th. Four other Duchess trees adjoining the 
above, not treated, were used as checks. At the 
end of the season it was found that the treated 
trees had 68 per cent, less of wormy fruit than those 
not treated, or, there were but 32 wormy apples on 
the treated trees where there would have been 100 
If the treatment had not been made. The percent¬ 
age of apples saved agreed remarkably well with 
the results obtained by Professors Goff and F'orbes 
above mentioned. I also tried in 1889 a new 
method of applying the poison to apple trees which 
was to mix Paris green very thoroughly with com¬ 
mon land plaster in the proportion of one pound of 
the poison to 100 pounds of plaster and throw the 
mixture over the trees from the top of a step ladder 
in the early morning while the dew was still on the 
foliage. Two trees were treated in this experi¬ 
ment and when brought into comparison with the 
check trees showed a saving of over 94 per cent, of 
the fruit that would have been wormy in the ab¬ 
sence of treatment. I do not suppose it would be 
advisable to apply the poison in this manner on a 
large scale but it may be a desirable method where 
a few trees are to be treated and no force pump is 
at hand. 
That it pays and pays richly to spray apple 
trees for the destruction of the Codling Moth larvae 
there can be no doubt. It is the unanimous ver¬ 
dict of thousands of practical orchardists in the 
East who have given this subject a thorough trial 
and come to consider the spraying of their fruit 
trees quite as essential to the production of a good 
