褐稻虱Nilaparvata lugens (Stal)和白背飞虱Sogatella furcifera(Horvath)对异性鸣声的趋性

 为探求稻飞虱鸣声在预测预报和物理防治上应用的可能性,室内引诱试验结果表明:1)褐稻虱和白背飞虱的鸣声是性成熟个体用以识别、联络同种异性,刺激性兴奋,完成交尾的求偶信号,其沿固体介质(寄主植株)传播,试虫可感觉距离在60—80cm 以内,45cm 以内较为敏感。2)性成熟的雄性及未交尾的雌性个体均常主动鸣叫,在听到异性鸣声时,雄虫表现为兴奋、骚动并积极循鸣声寻觅雌虫;雌虫亦以鸣声相和但很少移动。3)求偶鸣声具有种的专一性,两种飞虱均只对同种异性鸣声敏感。4)以相应的鸣声录音代替活虫,其引诱效果无显著差异。

The Taxis to Acoustic Signals of Opposite Sex in Nilaparvata lugens (stal) and Sogatella furcifera (Horvath)

To explore the applicability of calling behaviour in brown planthopper Nilaparvata lugens, and white backed planthopper, Sogatella furcifera, as measures for their occurrence forecast or physical control,some inducement experiments were conducted in laboratory in CNRRI. The results showed that: 1)The acoustic association transmitted through substrate (host Plant) between matured individuals of both sexes in same species is the courting signal used for recognizing and connecting with opposite sex, stimulating sex excitement,and fulfilling mating process. The tested insects could responed to the signals in a distance of about 60-80 cm and was more sensitive within 45 cm. 2)Both sexually matured males and virgen females emitted acoustic signals initiatively. The males responed to the signals of female actively and moved towards the females for mating. On the other hand,the female responed to male signals but without moving. 3)The courting signal was species specifical.Both sexes of two species only responeded to heterosexual signal of the same species respectively. 4)There was no significant difference between the reactions to real courting signal and to playback of calling record.