How should a flying insect in search of a place to feed or oviposit choose to land on a plant? Many phytophagous insects use chemical cues to identify their host plants.Wolfin and colleagues studied the host location behavior of the grape berry moth, Paralobesia viteana (Clemens) (Lepidoptera: Tortricidae) using a synthetic model in a flight tunnel. Only the combination of visual stimuli, odor stimuli, and humidity elicited landing rates comparable to live grape shoots. These results indicate that chemical cues are not sufficient for locating a host plant and that additional stimuli are used by the insect in the field. Such knowledge will be useful when developing control methods against this grape pest.

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编辑推荐：2020 年 12 月

寻找觅食或产卵的地方的飞虫应该如何选择降落在植物上？许多植食性昆虫使用化学线索来识别它们的寄主植物。Wolfin 及其同事在飞行隧道中使用合成模型研究了葡萄浆果蛾 Paralobesia viteana (Clemens) (Lepidoptera: Tortricidae) 的寄主定位行为。只有视觉刺激、气味刺激和湿度的结合才能引起与活葡萄芽相当的着陆率。这些结果表明化学线索不足以定位寄主植物，并且昆虫在田间使用了额外的刺激。在开发针对这种葡萄害虫的控制方法时，这些知识将非常有用。