Table 1. Attraction of DBM (Plutella xylostella) by traps baited with single- or multi-component lures prepared from three pheromone compoundsa).
| Lure component (mg/septum) | Males/trap/weekb) | |||
|---|---|---|---|---|
| Z11-16:Ald | Z11-16:OAc | Z11-16:OH | ||
| Test 1 | ||||
| 0.50 | 0.00 | 0.00 | 0.5±0.4 | e |
| 0.00 | 0.50 | 0.00 | 1.2±0.9 | de |
| 0.00 | 0.00 | 0.05 | 2.3±1.0 | cde |
| 0.25 | 0.25 | 0.00 | 55.7±25.4 | b |
| 0.50 | 0.00 | 0.05 | 3.42±1.8 | cd |
| 0.00 | 0.50 | 0.05 | 9.2±12.7 | c |
| 0.25 | 0.25 | 0.05 | 158.1±61.2 | a |
| One virgin femalec) | 149.6±18.3 | a | ||
| Blank (control) | 0.0 | |||
| Test 2 | ||||
| 0.25 | 0.25 | 0.005 | 152.4±62.6 | b |
| 0.25 | 0.25 | 0.05 | 225.4±59.0 | ab |
| 0.25 | 0.25 | 0.10 | 246.7±100.3 | ab |
| One virgin femalec) | 434.5±34.6 | a | ||
| Blank (control) | 0.0 | |||
a) Experiments were carried out at a cabbage field in Cho Moi district, An Giang province from 28 December, 2013 to 25 January, 2014 (Test 1) and 3 February to 3 March, 2014 (Test 2). b) Mean±S.E. (n=3). Values within each test followed by the same letter are not significantly different at p<0.05 by Tukey–Kramer Test. c) Virgin female was replaced every week.