New YorkK AGRICULTURAL EXPERIMENT STATION. 295 
Under these conditions it was more convenient to keep a 
record of the trees and the notes on the same by number instead 
of by charts, the trees being numbered consecutively in each 
orchard, without reference to the kind of tree. 
All trees under test, of whatever kind, were treated while the 
fumigators were near them, without returning to the same sec- 
tion of the orchard at different times. The orchard was treated 
in sections during the winter of 1900-1901, so that some trees of 
each kind could be fumigated with different amounts of KCN at 
different periods—while dormant and when the buds were 
opening. 
Dates given in the tables should not be taken as proper time 
for treatment except in sections of the country which have 
relatively the same temperature. 
TABLE I.—APPLE TREES TREATED UNDER FUMIGATORS, 1901, 
Time treated. 
Amt. of KCN ———+~——— No. of 
Date. per 100 cu. ft. Min. Max. trees, Results. 
Grams. Ozs. Min. Min. 
Mar, 23:. 15 53 45 45 1 No injury. 
Mar.i8:. °20 70 45 45 1 No injury. 
Mar.19.. 20 -70 30 35 3 No injury. 
Wier 20, 20 -70 45 45 1 No injury. 
Mar. 2aes **20 70 30 90 3 injury. 
mur +be2 20 70 30 60 2=" No injury: 
Apr. o.. 20 -70 30 30 2 No injury. 
1 
1 
4 
Z 
° 
Apr Os; 20 .70 30 30 No injury. 
Aur. toes ~ 20 iO 30 30 No injury. 
Total number treated with 20 grams 1 
Mar. 16.. 25 .88 30 45 4 No injury. 
Mar.18.. 25 .88 5D 55 1 No injury. 
Mar19%. ~ 25 .88 35 70 2 No injury. 
Siar 2. © 2b 88 45 50 2 No injury. 
9 
Wary 27 82" 525 .88 15 40 2 No injury. 
MATE ZS 0525 .88 30 715 2 No injury. 
OA ee 88 30 90 111 No injury. 
Pind Fate.) hae .88 30 45 15 £4No injury. 
Apr. 8 25 .88 30 45 3 No injury. 
Popes: 62515 11-388 30 30 1 No injury. 
AL yep ARS) .88 30 40 6 No injury. 
Mpls. 2 25 88)" 5130.9) 80) 1 Ses No injury, 
Total number treated with 25 grams 51 
Mireco.. 75 2.64 45 45 13 Very scaly, thrown out. 
ee 
2+ One tree exposed all night to action of gas. 
2 Kumigator blown off one tree at end of 15 minutes. Unless anchored when wind was 
heavy, the fumigator is not only liable to jamp but in this case was blown from the tree. 
3 ‘Lree was removed after treatment by owner withvut consulting us. 
