26 Nebraska Agricultural Exp. Station, Research Bui. 10 
the blossoms open (Stedman, 1904, Crandall, 1905, and Brooks, 
1910). The beetles were found at work in Nebraska before this 
time, and it was determined to try a poison spray applied before 
the regular petal-fall application. 
EXPERIMENTS IN 1913 i 
Notes on curculio injury were taken from the same trees and 
at the same time that the codHng moth data were taken. For 
methods of spraying, etc., see discussion on control of codling 
moth. In the tables, larvae are designated as ''worms," and feed- 
ing punctures, egg punctures, etc., as ''stings." 
Table 12 — Wymore spray schedule 
Date 
April 21 
May 5 
May 22 
1 
July 2 
Spray 
Cluster-bud 
Petal-fall 
3-weeks 
1 Second-brood 
Plat 1 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Pb-2-50 
Curculio injury on windfalls and picked fruit 
Curculio 
Variety 
Plat 
Total 
fruit 
Worms 
Per cent 
Stings 
Per cent 
Ben Davis ( 
1 
10,472 
24 
.23 
51 
.51 
Missouri Pippin \ 
check 
2,203 
13 
.59 
214 
9.71 
At Wymore the efficiency of the schedule was 63 per cent in the 
control of larvae and 99.48 per cent in the control of skin punctures. 
This would indicate that the spray acted as a repellent in addition 
to poisoning the insects. The fact that the orchard was under 
clean cultivation would also account, in part, for the comparatively 
low percentage of stings. 
Table 13 — Brownville spray schedule 
Date 
May 8 
May 31 
Spray 
Petal-fall 
3-weeks 
Plat 1 
Pb-2-50 
Pb-2-50 
(1904) Stedman, J. M. The sting in the apple. Missouri Sta. Bui. No. 64. 
(1905) Crandall, Chas. S. The curculio and the apple. Illinois Sta. Bui. No. 98. 
(1910) Brooks, Fred E. Three snout beetles that attack apples. West Virginia Sta. Bui 
No. 126. 
