328 Report oF THE DEPARTMENT OF ENTOMOLOGY OF THE 
Orchard V. (Israel Luce, Ff. A. Sirrine, Northville.) —Peach 
and apple trees were used in this experiment. The peaches were 
selected with reference to vigorous growth and general neglect. 
The apples were young and healthy. Scale and leaf curl were 
present in the orchard during the previous year. The number of 
trees under experiment was 231, of standard varieties. 
All orchards.—The total number of trees under treatment was 
596; of these 41 were apples, 304 plums, 251 peaches. Checks were 
reserved in each orchard, which were representative of the sprayed 
trees. 
CONDITIONS. 
At Geneva the washes were applied between Nov. 11 and 22. 
The weather for this period was variable, generally eloudy with 
light winds. The temperature varied from 20° to 40° F. in the 
morning, and from 34° to 58° F. in the afternoon. There was no 
precipitation until Nov. 20, when a few snow flurries were. fol- 
lowed by clear weather with a light snow at night. 
During the treatment at Northville, made between Nov. 16 and 
Dec. 1, the weather was clear with brisk northeast to northwest 
winds. . 
The trees were sprayed once carefully and the following day 
any limbs not thoroughly coated received a second treatment. 
The weather conditions were much more favorable than in 1903, 
as severe cold did not set in until after the work was completed. 
In each orchard, except Orchard IV, comparative tests were 
made with the several washes. In Orchard IV, the self-boiled lime- - 
sulphur-caustic soda wash only was used in comparison with kero- 
sene-lime mixtures. 
PREPARATION OF THE WASHES. 
The washes were the same as those employed during the pre- 
vious year, viz.: The lime-sulphur-salt wash prepared with and 
without external heat; the lime-sulphur wash; and the lime- 
-sulphur-caustie soda wash, prepared with and without external 
heat. The formule and methods of preparation are as follows: 
BoILtep LiIME-SULPHUR-SALT WASH. 
TAIIC ibd te sa dhe oie wit a ilco ei ie a hk cL ie ean aa .... 20 pounds. 
ae Sah oh pie iaieeed poh oh a ARIES Sona 5 MRS ahh RI win nn, wrk «ce 10sS aa 
POAC F 6 oe RR FE. ULE Raa IEE, eee RES ARLE ee eee ae TSECE 
Watery, he duicnal fA ser ata o: ic.5 colo ERT teal ibe pinta ga ee ere 50 gallena: 
