烟粉虱对寄主的选择行为

烟粉虱Bemisia tabaci(Gennadius)成虫对寄主植物选择行为的实验结果表明,烟粉虱是通过植物广谱的绿色气体识别植物材料,并进一步受到绿色的诱导。通过烟粉虱在适宜与非适宜寄主植物上滞留时间的差异,可以看出烟粉虱是通过口针刺探的寄主评估过程逐渐实现寄主偏好性的,存在一个短的时滞。综合来看,烟粉虱的寄主选择是通过嗅觉、视觉和味觉共同参与的一个决策过程,以寄主植物的气味、颜色和质量为线索,逐步定位到适宜的寄主植物上,因此在寄主选择过程中存在很大的可塑性。

Host selection behavior of Bemisia tabaci

The host selective behavion for whitefly Bemisia tabaci Bemisia tabaci(Gennadius) was studied primarily.The results showed that whitefly recognized plant materials by broad-spectrum volatile odor,and were induced by green in the further step.With the difference of whitefly staying on adaptive and non-adaptive host plants,it showed that whitefly made last decision by host evaluation with stylet-probing and gradually realized host preference,so there is a short time lag existing host choice.Generally,whitefly's host selection is an integrated decision-making evolved sense of olfaction,vision and palate,which gradually locate adaptive host by the cues of odor of plant,color and host quality,so there is obvious flexibility in the process of whitefly's host selection.