Spraying Experiments in Nebraska 67 
in making the Bordeaux was of no advantage in preventing spray 
injury. 
The amount of sound fruit here on the different plats seems to 
have been in inverse proportion to the spray injury. 
Table 42 — Spray schedule 
Date 
April 25 
May 9 
June 2 
July 15 
Spray 
Cluster-bud 
Petal-fall 
3 -weeks 
Second brood 
Bx-Pb 
Bx-Pb 
Bx-Pb 
Bx-Pb 
Plat 1 
3-4-8-50 
3-4-3-50 
3-4-3-50 
3-4-3-50 
Bx-Pb 
LS-Pb 
LS-Pb 
Bx-Pb 
2 
3-4-3-50 
1.5-3-50 
1.5-3-50 
3-4-3-50 
LS-Pb 
LS-Pb 
LS-Pb 
LS-Pb 
3 : 
1.5-3-50 
1.5-3-50 
1.5-3-50 
1.5-3-50 
Bx-Pb 
Bx-Pb 
Bx-Pb 
Bx-Pb 
4 
4-4-3-50 
4-4-3-50 
4-4-3-50 
4-4-3-50 
Comparison of the effect of Bordeaux and lime sulphur 
Tabulations are in percentages 
Variety 
Plat 
Codling 
moth 
Curculio worm 
and sting 
Scab 
Spray 
injury 
Sound 
fruit 
1 
13.70 
1.43 
.26 
30.79 
54.14 
Ben Davis 
2 
10.71 
.94 
.078 
19.53 
76.85 
Jonathan .... 
3 
10.71 
.49 
1.05 
8.75 
86.70 
4 
20.78 
.27 
.65 
21.21 
59.20 
check 
33.20 
5.86 
34.85 

34.08 
No blotch, sooty blotch, or rust was present. 
At Lincoln (table 42), the results were practically the same as 
at Florence. Bordeaux made according to the 4-4-50 formula was 
no more effective than the 3-4-50 Bordeaux. Neither did it 
cause any more injury; in fact the injury on this plat was less 
than in plat 1. There was one tree in plat 1 which had much more 
injury than any other tree of either plat. 
There was more codling moth injury on the Bordeaux plats 
than on the lime sulphur plats. This difference is attributed to 
some extent to the greater amount of spray injury found on the 
former. The damage was done chiefly by second-brood larvae 
which entered thru the roughened parts of the skin, these places 
affording an easier entrance than the smooth, hard surface of the 
unrusseted portions. Again, there might have been a less thoro 
covering of poison over this part of the apple, due to the malforma- 
tion of the fruit after the spraying was done. 
Considerable injury to foliage also occurred on the Bordeaux 
plats. 
