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Additional Tests
(a) Equal amounts of each attractant
The results of the experiment using equal amounts of each attractant are shown in Table I.
Table I
.
Attractant Preferences
| Ovipositional choice of amyl alcohol females. |
| Day |
Eggs laid in amyl alcohol |
% of total |
Eggs laid in ammonium carbonate |
% of total |
| 1 |
163 |
56.75 |
128 |
43.25 |
| 2 |
1,227 |
60.18 |
812 |
39.82 |
| 3 |
95 |
100.00 |
0 |
0.00 |
| 4 |
198 |
53.70 |
169 |
43.06 |
| Ovipositional choice of ammonium carbonate females. |
| Day |
Eggs laid in amyl alcohol |
% of total |
Eggs laid in ammonium carbonate |
% of total |
| 1 |
34 |
100.00 |
0 |
0.00 |
| 2 |
1,129 |
96.99 |
35 |
3.01 |
| 3 |
278 |
100.00 |
0 |
0.00 |
| 4 |
249 |
100.00 |
0 |
0.00 |
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(b) Egg attractant effects
From a total of 16 trials, 12 showed a significantly greater percentage of eggs laid in the phial containing the "egg attractant".* The results are summarised in Table II.
Table II
.
Attraction Effects of Newly Laid Eggs
†
| TRIAL No. |
MEDIA and EGGS |
CONTROL |
| 1 |
1,000 |
20 |
| 2 |
1,000 |
0 |
| 3 |
1,000 |
20 |
| 4 |
100 |
1,000 |
| 5 |
200 |
20 |
| 6 |
500 |
20 |
| 7 |
100 |
500 |
| 8 |
1,000 |
500 |
| 9 |
50 |
0 |
| 10 |
50 |
0 |
| 11 |
1,000 |
100 |
| 12 |
100 |
1,000 |
| 13 |
1,000 |
500 |
| 14 |
1,000 |
100 |
| 15 |
0 |
1,000 |
| 16 |
0 |
1,000 |
(c) Strength of chemical vs egg attractants
The results of this experiment are listed in Table III.
Table III
.
Chemical Compared With Egg Attractant Effects
| AMYL ALCOHOL STRAIN |
AMMONIUM CARBONATE STRAIN |
| Amly alcohol |
Eggs§
|
Ammonium carbonate |
Eggs |
| 0 |
200 |
100 |
50 |
| 200 |
50 |
50 |
0 |
| 500 |
50 |
500 |
50 |
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