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THE PLUM CURCULIO. 
SOME RESULTS OF SPRAYING PEACHES FOR THE CURCULIO. 
In the following tables some results of spraying peaches for the 
curculio are presented. The benefits are seen to vary from season 
to season, as in the case of the apple, depending upon the abundance 
of the insects. On account of the difficulty of taking note of punc- 
tures in the fuzzy peaches, the results are based on records of actual 
infestation of fruit by larvae or indications of the presence of the 
latter. The results obtained by tins method of computation on the 
different plats should be entirely comparable. Examinations were 
made of all drop fruit during the season, as well as of the ripe fruit 
at picking time. One of the most important results in spraying for 
the curculio is the reduction of brown rot. The punctures of the 
curculio in the fruit form an easy point of infection, and very notable 
benefits in the reduction of brown rot may be observed in orchards 
sprayed only for the curculio. 
In Table CII are given results of spraying of peaches in 1906 on 
the Arlington Farm, Va. The orchard used contained about 500 trees 
and was an isolated one, but adjacent to a thick growth of young 
trees and bushes. Not all of the trees were treated, each plat con- 
taining some 50 trees. The applications were made on the dates 
indicated in the table. It was also thought desirable to determine 
the possible benefit of spraying the trees heavily with simply lime- 
water, inasmuch as this method of curculio control has been some- 
what exploited. 
Table CII. — Results of spraying peaches for lite plum curculio, Arlington Farm, Va. 
1906. 
The curculio was not especially abundant in tins orchard during 
1906; as shown by the condition of the check, about 25 per cent of 
