different schedule than some of the 
older treatments. In other words, a 
change to a new material often in- 
volves a modification in schedule that 
must be worked out by each grower. 
Growers generally understand that 
a method of application which may 
control apple scab, may not be at all 
adequate for controlling codling 
moth, one of the most pestiferous of 
the enemies of high production. 
So during the present season, let's 
see more growers doing a thorough 
job of spraying, so that our 1941 
crops will really be high. 
The subject of dormant spraying, 
for winter application looking to next 
year’s crop, can be mentioned briefly 
at this time too, as it is perhaps the 
least understood part of the spraying 
program. The use of methods de- 
veloped for summer spraying can not 
be followed for the dormant spray. 
Inadequate dosage and incomplete 
coverage may reduce the value of 
the dormant application. There are 
now available complete instructions 
with reliable brands of materials 
which show the amounts required to 
properly cover a tree, and a skimping 
of material in this case may be ex- 
pensive in the long run. : 
Fred Bolton of Linton, Indiana, 
writing in ‘‘Hoosier Horticulture”’ re- 
cently, made a good point when he 
pointed out that good spraying of 
older trees is helped greatly by heavy 
pruning. ‘I would prefer one thor- 
ough spray timed right and with a 
sticker, to three light sprays for con- 
trol of codling moth,’”’ he continued, 
and ‘Pruning helps very materially 
in accomplishing this.”’ 
Mr. Bolton does not apply dormant 
spray unless there is appearance of 
scale. For the control of apple scab 
he uses liquid lime sulphur at the 
rate of two gallons per hundred, the 
first spray being applied as soon as 
the green tips begin to show, and re- 
peated with light applications every 
seven to ten days until blossoming. 
As this is caustic to foliage, many 
growers are now using wettable sul- 
phurs, and as a result foliage is 
better. However the coverage must 
be thorough. The flotation sulphur 
(Continued on Page 13)] 

Ilgenfritz Headquarters’ Office Building at Monroe, erected more than a century ago. 
