New YorK AGRICULTURAL EXPERIMENT STATION. 201 
of the fruit. The weather conditions prevailing during the grow- 
ing season were very unfavorable for the apple scab. For this 
reason there was no evidence of this disease in the orchard, and 
consequently no opportunity was given to determine the com- 
parative values of the sulphur wash and the bordeaux mixture 
for the treatment of this trouble. 
RESULTS ON PLANT DISEASES. 
The season was remarkable for the absence of important fruit 
diseases. During the early part of the growing season there was 
a protracted drouth, which was succeeded on June 7 by cold, wet 
weather. These conditions were unfavorable for the develop- 
ment of orchard diseases. For this reason the experiments under- 
taken to determine the comparative merits of the sulphur wash 
and bordeaux mixture as fungicides gave no satisfactory results. 
Apple scab, which was so destructive the year before, was not 
sufficiently abundant to give conclusive evidence upon the merits 
of the different sprays. Likewise the work undertaken for the 
peach leaf curl, sooty blotch, brown rot, etc., gave inconclusive 
results. It is intended to continue these experiments until .con- 
clusive results are obtained. 
DISCUSSION OF RESULTS AND CONCLUSIONS. 
The experiments recorded in this bulletin represent the first 
season’s work to determine to what extent the lime-sulphur-caus- 
tic soda wash may be used in the place of the usual applications 
of the bordeaux-arsenical mixture for orchard treatment and its 
value for scale control. It will be remembered that extensive 
tests conducted by this Station in 1902 demonstrated that the 
lime-sulphur-salt wash was a safe and reliable remedy for the 
seale. Likewise experiments conducted in this and other states 
have shown that this wash may to some degree prevent apple 
scab, pear psylla, and peach and pear mites. But its value for 
these latter and other important orchard pests has not been suffi- 
ciently determined to warrant its recommendation in place of 
recognized remedies. 
In view of the fact that the scale is becoming more widely dis- 
tributed, and sulphur sprays are being more generally used, there 
is need of more data as regards to the efficiency of sulphur 
