The sterile insect technique (SIT) is a sustainable pest management tool based on the release of millions of sterile insects that suppress reproduction in targeted populations. Success of SIT depends on survival, maturation, dispersal, and mating of released sterile insects. Laboratory and field cage studies have demonstrated that dietary supplements of methoprene and raspberry ketone (RK) promote sexual maturation of adult Queensland fruit fly, Bactrocera tryoni (Froggatt), and may hence shorten the delay between release and maturity in the field. We investigated the effects of methoprene and RK dietary supplements on field abundance of sexually mature sterile Q-flies relative to untreated flies fed only sugar and yeast hydrolysate before release at 2 d of age. Compared with untreated flies, more methoprene- and RK-treated flies were recaptured in cuelure traps to which only sexually mature males are attracted. At distances of 100 and 200 m from the release point, recapture rates were higher for methoprene- and RK-treated flies than for untreated flies, but at 300 m recapture rates were low and were similar for treated and untreated flies. Rainfall, relative humidity, wind speed, and wind direction did not affect recapture rates, but temperature was positively correlated with recapture rates for all treatments. There was a strong correlation between the number of sterile and wild flies caught in traps, indicating co-location in the field. Dietary supplements of methoprene and RK can substantially increase abundance of sexually mature sterile male Q-flies in the field following release as 2-d-old immature adults.

中文翻译：

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预先释放的甲氧普林和覆盆子酮膳食补充剂增加了不育昆士兰果蝇（双翅目：Tephritidae）的田间丰度

昆虫不育技术 (SIT) 是一种可持续的害虫管理工具，它基于释放数百万只抑制目标种群繁殖的不育昆虫。SIT 的成功取决于释放的不育昆虫的存活、成熟、扩散和交配。实验室和田间笼子研究表明，添加甲氧戊二烯和覆盆子酮 (RK) 的膳食补充剂可促进昆士兰成虫、Bactrocera tryoni (Froggatt) 的性成熟，从而缩短田间释放和成熟之间的延迟。我们研究了甲氧普林和 RK 膳食补充剂对性成熟不育 Q 果蝇田间丰度的影响，相对于未经处理的果蝇，在 2 日龄释放前仅喂食糖和酵母水解物。与未经处理的苍蝇相比，更多的甲氧普林和 RK 处理的苍蝇在 cuelure 陷阱中重新捕获，只有性成熟的雄性会被吸引。在距释放点 100 和 200 m 的距离处，经甲氧戊二烯和 RK 处理的果蝇的再捕获率高于未处理的果蝇，但在 300 m 处的再捕获率较低，处理和未处理的果蝇相似。降雨、相对湿度、风速和风向不影响再捕获率，但温度与所有处理的再捕获率呈正相关。陷阱中捕获的不育和野生苍蝇数量之间存在很强的相关性，表明在田间共同定位。在作为 2 天龄未成熟成虫释放后，在田间添加甲氧普林和 RK 的膳食补充剂可以显着增加田间性成熟不育雄性 Q 蝇的丰度。