Spraying Experiments in Nebraska 
17 
The following diagram indicates the comparative dates of 
codling moth development and spraying at Lincoln. 
Tobd 
spray 
Fig. 4 — Shows blooming period of apples, rate of development of codling moth, 
and dates when spraying was most efifective for both codling moth and 
scab in 1914 
The same general plan was followed as in 1913 except that an 
attempt was made to control the moths by spraying more thoroly 
at the petal-fall application and shifting the date of the third 
application. 
Table 6 — Beatrice spray schedule 
Date 
Spray 
April 24 
Cluster-bud 
May 15 
Petal-fall 
May 25 
10-days 
June 12 
25-days 
June 22 
35-days 
July 14 
2d-brood 
Plat 1 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Pb-2-50 
2 
Pb-2-50 

3 
Pb-2-50 

Codling moth injury on windfalls and picked fruit 
Variety 
Plat 
Total fruit 
Codling moth 
Per cent 
1 
12,133 
3,426 
28.23 
Ben Davis 1 
2 
14,172 
3,592 
25.35 
Mo. Pippin 1 
3 
10,339 
3,877 
37.50 
check 
14,845 
11,024 
74.26 
_ At Beatrice (table 6), a new power sprayer of 8-gallons-to-the- 
minute capacity was used. Bordeaux nozzles were used for the 
petal-fall spray and a pressure of 225 to 250 pounds maintained. 
The schedule for plat 2, with an efficiency of 66 per cent, gave the 
best results, followed by plats 1 and 3, respectively. Over 40 per 
