New York AGRICULTURAL EXPERIMENT STATION. 323 
and at the same time to compare very early treatments with later 
treatments and thus learn at what periods spraying should be 
done to accomplish the best results. 
These investigations were begun in 1897 and have been con- 
tinued for three seasons. Two commercial plantations have been 
under experiment. One belonging to King & Robinson is located 
at Trumansburg on the slopes just west of Cayuga Lake. This 
was treated three seasons. The other belonging to the Van 
Dusen Nursery Co., Geneva, and located on the upland about 
two miles west of Seneca Lake, was treated in 1899 only. A 
preliminary report giving the results of the work in 1897 may 
be found in Bulletin 133. A complete report of the investiga- 
tions for the entire period from 1897 to 1899 is now presented 
for the first time. 
TRUMANSBURG EXPERIMENTS. 
PLAN. 
The plantation at Trumansburg consists of 82 rows with 11 
plants to the row. As shown in the diagram opposite it was 
divided into six plats. Each treatment was given to two plats 
located in different parts of the plantation. This arrangement 
was for the purpose of equalizing for each remedy the differences 
in soil and location which might exist in different parts of the 
plantation. | 
For convenience in comparing the effects of very early with 
medium and late spraying, three series of treatments were made. 
Series I was begun very early just as the buds were breaking 
and successive applications were made at intervals of about ten 
days until seven had been given. Series II was begun when the 
second spraying of Series I was made. Series IIT was begun 
when Series I received its third spraying and Series IT its second 
spraying. During the remainder of the season the dates of treat- 
ment were the same for all three series. An untreated row was 
left as a check for each series. 
