27 
Table 3. --Continued 
Insecticide 
(figures indicate percent) 
Average 
dosage 
per acre 
All cucumbers 
harvested 
Sound 
Wormy 
Marketable 
cucumbers 
per acre 
Number Percent Bushels 
1950, Experiment 3 (continued) 
Pyrethrins (impregnated) 0.075 plus rotenone 
0.375 and piperonyl cyclonene 
0.75 
Rotenone 2 
1.5 
1.5 plus nicotine 2.5 
Allethrin 1 
1 plus piperonyl butoxide 1 
Untreated 
Least significant difference at odds of 19:1 
1951, Experiment 1 (5 applications at 5- to 10-day intervals) 
25 pounds 
823 
4 
255 
26 
982 
2 
315 
26 
845 
2 
252 
26 
919 
2 
284 
28 
808 
2 
264 
24 
781 
3 
248 
- 
.798 
6 / 
3/ 
- ns— 
257 
Lindane I , 20 
1-3 21 
773 

190 
856 
0. 
1 
194 
0.5 20 
852 
o 
9 
194 
Cryolite 50 21 
639 
5 
137 
DDT 2 (purified) 20 
737 
5 
169 
Parathion 0.5 20 
827 
9 
196 
Untreated 
405 
37 
108 
Least significant difference at odds of 19:1 - - - - - 
- 3. 
5 
34.7 
99:1 
- 4. 
7 
46.7 
1951, Experiment 2 (1 application) 
Sabadilla 20 
20 plus nicotine 0.5 and poly- 
ethylene glycol (600) 
monolaurate 2 
Pyrethrins (impregnated) 0.15 
.1 
.1 plus lindane 0.25 
.1 plus piperonyl 
butoxide 1 
36 
25 
3/ Data not significant according to the F test. 
A[ Four applications. 
541 
450 
20 
28 
173 
29 
536 
14 
172 
25 
472 
30 
162 
25 
449 
31 
158 
27 
632 
10 
185 
151 
