78 Nebraska Agricultural Exp, Station, Research Bui. 10 
made as the commercial brands. Slightly less spray burn was 
recorded for the plats sprayed with the home boiled solution. 
If spray injury is due to the rapid oxidation of the sulphur com- 
pounds, this might be expected, since of the total sulphur content 
of the home boiled solution approximately 62.5 per cent was 
polysulphides, (CaSo and CaS4), while the polysulphides in the 
commercial solution amounted to approximately 75.4 per cent of 
the entire sulphur content. 
The results shown in tables 31 and 32 are for home boiled 
lime sulphur. 
COMMERCIAL PREPARATIONS SOLD AS FUNGICIDES 
Several preparations, sold as fungicides by various companies, 
have been tried out, but so far nothing has been found to take the 
place of the two standard fungicides. Several brands of prepared 
Bordeaux were found to control fungous diseases practically as 
well as the regular Bordeaux but did considerably more damage 
to fruit and foliage. 
Atomic sulphur and soluble sulphur were used with the re- 
sults that scab was usually controlled but the damage to fruit 
and foliage was so great as to make the use of either disastrous. 
Sulphur in either form would be desirable because of convenience 
in handling and reduction in freight, could the disagreeable feature 
of injury to the fruit be eliminated. 
PENETRATION VS. MIST SPRAYING 
There has been so much discussion in regard to the manner of 
applying spray materials, so many arguments advanced favoring 
both high and low pressure solid-stream and hollow-stream noz- 
zles, etc., etc., that it is difficult to determine which method or 
combination of methods to follow. Unfortunately for the man 
who studies bulletins from every station, hoping thereby to 
model his own course of procedure, there is such a wide range of 
climatic and other conditions that what is true for one section of 
the country will not obtain for another. Especially is this true 
in attempting to compare eastern and western methods of fruit 
growing. And, while the penetration method of spraying, i.e., 
applying the liquid with solid-stream nozzles under high pressure, 
gives good results under Washington conditions, it does not 
necessarily follow that it will give equally good results under such 
conditions as obtain in the Middle West. 
The foregoing report on codling moth control shows that the 
spray applied as a coarse mist under 225 to 250 pounds pressure is 
as effective for the calyx application as where applied with the 
