New YorK AGRICULTURAL EXPERIMENT STATION. 323 
QUANTITY OF SPRAY AND CosT PER TREE. 
a 


Average Average Average Average 
number of cost of cost of cost of 
NAME OF SPRAY, gallons spray labor treatment 
per tree: Derrbree. per tree. Hetercces 
Cts: Cts; Cts 
Crude oil emulsion (20 per ct. oil)........ 11 32 11 43 
Crude oil emulsion, with supplementary 

spraying with crude oil emulsion (16 per 
EOL ree Cees CR EA eK Cee: 15 40 14 54 
EISEN Ta ELST ae or aah hes cra oe ea toe wricc gt otis ce 13 15 up2 27 
Sulphur wash, supplementary spraying with 
crude oil emulsion PTOsper Che Ot) ute. 3 ay 23% 5 38 
Sulphur wash, supplementary spraying with 
kerosene emulsion (20 per ct. o1l)i2. 17 24 14 38 
Msciblevo1* sCLOiper cts) 2 Lesher bee: 10 51 8 59 
ecible oil, supplementary spraying with 
PEL Ao ees SORT whe LR 13 ( ii 83 
Miscible SOLO NDELLCL.) sate cals. ccs see og ee 10 42 8 50 
Miscible oil, supplementary spraying with 
SEWED S Gig Gusta) 0 CaO CUD EN eee ee 13 58 11 69 
RESULTS ON TREES AND SCALE IN 1907. 
At the time of blossoming and leafing in 1907, there were ne 
evidences of injury to the trees, attributable to the treatment of this 
year, by any of the various mixtures, including the supplementary ap- 
plications. As the season advanced a number of the Spitzenburgs 
in one row treated with crude oil emulsion showed evidences of 
decline, as here and there on the trees there were small branches 
with dead foliage. But, as explained in former notes, all of these 
trees are badly affected with collar rot, which is largely responsible 
for their unfavorable condition. One of the striking features of 
the orchard at this season was the symmetrical and shapely appear- 
ance of the trees due to the new growth, which had filled up the 
gaps caused by the severe pruning in past years. With the excep- 
tion of the six eastern rows, the trees yielded a good crop of fruit, 
the largest for several years. The effects on the scale were the 
most satisfactory that have been obtained in this orchard since the 
pest became established. As one passed through the orchard at the 
time of the harvesting of the fruit, the block sprayed with the 
home-made emulsion appeared, on the whole, to give somewhat 
better results on the scale than the sulphur wash, but both sprays, 
with the exception of less than a dozen trees in each lot, had proven 
very efficient, for there were very few apples that were spotted. 
* Purchased at 50 cts. per gallon. 
+ Purchased at 4o cts. per gallon. 
