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Application of the Artificial Signal in Acoustic Trapping Experiment for the Rice Brown Planthopper,Nilaparvata lugens (Stal)

ZHANG Zhitao;FU Qiang;WU Lifang;CHEN Lunyu;YIN Baitao;CHEN Chunhua; CHEN Wei(China National Rice Research Institute, Hangzhou 310006;Hangzhou Applied Acoustic Research Institute, Hangzhou311400,Zhejiang Agricultural University. Hangzhou 310029)  
An artificial signal produced by an electron simulator(signal generator)was applied instead of the female signal recording.The results showed that the average percentage of male trapped was 22.2% ±3.4 % for the continuous artificial signal,and there was no significant difference of trapped percentage among the three kinds of trapping signal source at 5% level by LSR.When using a discontinuous artificial signal the average trapped percentage reached to 44.8% ± 5.7 %, which was 22. 6 percentage point more than that for the continuous artificial signal, 15.9 Percentage point more than that for the playback of the natural signal recording, and 13.7percentage point more than that for the calling females as well. Furthermore, a trapping experiment using the disconhnuous artificial signal for a made colony, the average of male trapped ranged from 1 .53% to 1 .64% of the sum of insect tested, and from 3.04% to 4.26% of the number of male tested. The trapping effectiveness of the artificial signal was much stable. The acoustic trap apparatus with the artificial signal generator was tested, In spite of the low population that was only 0.40 ±0.08 N. lugens males per hill, two males were still trapped. It suggested that the artificial signal generator is hopeful to be applied as a kind of practical trapping signal source in the acoustic trap for N. lugens.
【Fund】: 国家自然科学基金
【CateGory Index】: S435.112.3
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