| 【Objective】A comparison of the attractive effects of different sex attractants on Spodoptera litura in
Guangzhou was conducted. 【Method】 The trapping effects of four kinds of S. litura lures (NB, QZ, BJ, ZZ) from different
manufacturers was measured in fields of Guangzhou. When other external factors, such as crops and field management
measures, were basically the same, the number of S. litura trapped was collected every other week, and the lures were
replaced every four weeks. The significant difference analysis was conducted on the number of S. litura trapped by the four
lures for S. litura. 【Result】The total number of S. litura attracted by NB, QZ, BJ and ZZ were 2402, 786, 394 and 123
respectively. The number of S. litura trapped by lure NB was 3.05 times of that by lure QZ, 6.09 times of that by lure BJ
and 19.53 times of that by lure ZZ. The average number of S. litura attracted per bottle per day was 26.1, 8.5, 4.2 and 1.3
respectively. The number of S. litura trapped by lure NB was 3.07 times of that by lure QZ, 6.21 times of that by lure BJ, and
20.08 times that by lure ZZ.【Conclusion】 The lure activity: NB > QZ > BJ > ZZ; and the half-life time: NB(32.25d) ＞
QZ(25.1d) ＞ BJ(16.04d) ＞ ZZ(12.1765d). |
