Abstract The surveillance and management of Dacini fruit fly pests are commonly split by fly gender: male trapping focuses on the dacine ‘male-lures’, whereas female trapping focuses on lures based on host-fruit volatiles. Although the males of several Dacini species have been reported to be attracted to host fruit volatiles, the option of using host-fruit traps for males has, to date, been ignored. Males of the cue-lure responsive fruit fly Bactrocera tryoni (Froggatt) have been recorded as responding to host-fruit volatile blends, but it is not known how frequently this happens, if it is age-dependent, or the strength of the response relative to cue-lure throughout the year. Here, we conducted an olfactometer experiment to test the lifetime (weeks 1–15) response of B. tryoni males to the odor of tomato, a known host of this fly, and compare catches of wild males to tomato-based traps and cue-lure traps in the field. Bactrocera tryoni males started to respond to tomato odor as they sexually matured (2 to 3 wk olds) and thereafter showed consistent olfactory response until advanced age (15 wk). In the field, wild males were captured by tomato-based traps throughout the year at a level not significantly different from cue-lure traps. The reason for the consistent B. tryoni male response to host fruit odor at this stage is not known, but it certainly occurs at a level greater than can be continued to be ignored for both basic and applied research.

中文翻译：

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雄性昆士兰果蝇（双翅目：实蝇科）对寄主果味的反应

摘要 Dacini 果蝇害虫的监测和管理通常按苍蝇性别划分：雄性诱捕侧重于 dacine '雄性诱饵'，而雌性诱捕侧重于基于寄主果实挥发物的诱饵。尽管据报道，几种 Dacini 物种的雄性会被寄主果实挥发物所吸引，但迄今为止，对雄性使用寄主果实陷阱的选择一直被忽略。提示诱饵反应性果蝇 Bactrocera tryoni (Froggatt) 的雄性已被记录为对寄主水果挥发性混合物有反应，但不知道这种情况发生的频率，如果它与年龄有关，或者反应强度相对全年进行暗示引诱。在这里，我们进行了一个嗅觉计实验，以测试 B. tryoni 雄性对番茄气味的一生（第 1-15 周）反应，番茄是这种果蝇的已知宿主，并将野生雄性的捕获量与田间基于番茄的陷阱和诱饵陷阱进行比较。Bactrocera tryoni 雄性在性成熟时（2 至 3 周龄）开始对番茄气味做出反应，此后直到老年（15 周龄）都表现出一致的嗅觉反应。在野外，野生雄性全年被基于番茄的陷阱捕获，其捕获水平与线索诱饵陷阱没有显着差异。在这个阶段对寄主水果气味产生一致的 B. tryoni 雄性反应的原因尚不清楚，但它肯定发生在一个更大的水平上，可以继续被基础和应用研究忽略。Bactrocera tryoni 雄性在性成熟时（2 至 3 周龄）开始对番茄气味做出反应，此后直到老年（15 周龄）都表现出一致的嗅觉反应。在野外，野生雄性全年被基于番茄的陷阱捕获，其捕获水平与线索诱饵陷阱没有显着差异。在这个阶段对寄主水果气味产生一致的 B. tryoni 雄性反应的原因尚不清楚，但它肯定发生在一个更大的水平上，可以继续被基础和应用研究忽略。Bactrocera tryoni 雄性在性成熟时（2 至 3 周龄）开始对番茄气味做出反应，此后直到老年（15 周龄）表现出一致的嗅觉反应。在野外，野生雄性全年被基于番茄的陷阱捕获，其捕获水平与线索诱饵陷阱没有显着差异。在这个阶段对寄主水果气味产生一致的 B. tryoni 雄性反应的原因尚不清楚，但它肯定发生在一个更大的水平上，可以继续被基础和应用研究忽略。