304 REPORT OF THE DEPARTMENT OF ENTOMOLOGY OF THE 
Results on codling moth.—The average percentage of wormy 
apples (picked) from Section I is 27.6; Section ITI, 3.6; Section 
III, 24.8; and Section IV, 8.9. The sound fruit from trees treated 
with the bordeaux-arsenical mixtures averaged 93.8 as compared 
with 74.1 per ct. of sound fruit from the checks and from the 
trees treated with sulphur wash alone. 
Results on scale.—The applications of the sulphur wash greatly 
reduced the numbers of the scale and insured the production of 
fruit which was practically free of scale. The average percent- 
age of infested fruit from the sulphur-treated trees was 5.3 as 
compared with 17.0 per ct. of scaly fruit from the untreated 
trees. As in Orchard IV, the infested fruit of the unsprayed 
trees was usually much more conspicuously marked than that 
of the sprayed trees. 
Results on plums—With the exception of some trees of the 
varieties Burbank and Satsuma the scale was kept well in control - 
by the sulphur sprays and clean fruit was harvested. The brown 
rot destroyed a few of the plums, but it was not sufficiently abun- 
dant to indicate the value of the sulphur washes for the treat- 
ment of it. Likewise the plum curculio caused very little injury, 
so that no data were obtained as to the comparative merits of 
the arsenite of soda and arsenate of lead for its control. 
ORCHARD Iv. (ONTARIO COUNTY.) APPLES. 
This orchard is located in Geneva. It was planted about 25 
years ago and consists of 42 trees of large size and of the varie- 
ties Baldwin and Greening. When the trees became infested is 
not known, but at the time of treatment the scale was well dis- 
tributed over each tree, many of the branches being encrusted. 
A portion of this orchard was sprayed in 1902 with the lime- 
sulphur-salt wash, but with this exception the trees have been 
neglected. Last year’s crop of fruit was practically worthless 
because of the scale. 
Conditions.—The trees were sprayed April 9-12. The weather 
was cloudy with light winds. On the afternoon of the 9th a 
heavy thunderstorm occurred and intermittent showers fell dur- 
ing the remaining days. The buds were well swollen, but none 
of them had burst. The trees were given a thorough treatment 
with either the lime-sulphur-caustic soda wash or the boiled lime- 
sulphur wash, being sprayed from all directions until they were 
completely coated with the mixtures. On account of the lack 
of a suitable tower with the spraying machine, considerable diffi- 
