- 25 
Table 3. --Continued 
Insecticide 
(figures indicate percent) 
Average 
dosage 
per acre 
All cucumbers 
harvested 
Sound 
Wormy 
Marketable 
cucumbers 
per acre 
Number Percent Bushels 
1949, Experiment 1 (5 applications at 7- to 8-day intervals) 
Parathion 1 
Aldrin 2.5 
CS-708 3 
CS-674A 2 
Cryolite 50 plus nicotine 2 and lime 5 
50 
CS-645A 2 
Methoxychlor 2.5 (impregnated) 
Tetraisopropyl pyrophosphate 1 
Untreated 
Least significant difference at odds of 19:1 
99:1 
23 pounds 473 
22 
23 
22 
21 
22 
23 
22 
22 
503 
380 
354 
297 
224 
187 
130 
52 
45 
78.7 
105.1 
10 
15 
32 
34 
36 
47 
52 
64 
77 
74 
9.7 
13.0 
1949, Experiment 3 (4 applications at 6- to 10-day intervals) 
Parathion 0.045 (suspension spray) 
CS-645A 0.094 (emulsion spray) 
Methoxychlor 0.181 (suspension spray) 
.189 (emulsion spray) 
Untreated 
66 gallons 246 
66 218 
66 48 
66 34 
15 
Least significant difference at odds of 19:1 ------- 93.5 
99:1 131.1 
Lindane 0.047 (emulsion spray) 66 233 
1949, Experiment 4 (4 applications at 6- to 7-day intervals) 
Sabadilla seed powder 20 
Pyrethrins 1 
0.3 plus piperonyl cyclonene 1 
.3 plus n-propyl isome 1 
.3 
Rotenone 1 plus piperonyl cyclonene 1 
1 plus n-propyl isome 1 
1 
Ryania 40 
Untreated 
Least significant difference at odds of 19:1 
99:1 
134 
151 
119 
104 
97 
80 
66 
46 
19 
17 
34.1 
45.6 
0.8 
107 
4 
96 
75 
16 
77 
14 
89 
6 
27.9 
60.5 
39.2 
84.9 
2 
194 
26 pounds 
349 
34 
125 
27 
406 
35 
141 
27 
313 
44 
112 
26 
295 
44 
112 
27 
292 
46 
103 
25 
332 
45 
117 
25 
285 
46 
96 
25 
322 
44 
116 
26 
275 
44 
103 
_ 
182 
56 
69 
Q 9 
24.8 
33.1 
- 13.3 
