Servicio Nacional de Sanidad Agraria (SENASA), La Molina 1915, La MOlina, Lima, Peru.
J Econ Entomol. 2020 Jun 6;113(3):1158-1175. doi: 10.1093/jee/toaa026.
The host status of sweet granadilla (Passifflora ligularis Juss.) to Ceratitis capitata (Wiedemann) and Anastrepha fraterculus (Wiedemann) in Peru was determined. Experiments were conducted in Pasco (Peru) in four different orchards, over 2 yr (2016 and 2017), two orchards per year. Choice (granadilla plus natural host) and no-choice foraging behavior trials were conducted using sleeves under field conditions, and forced infestation was examined in laboratory cages, with five females per fruit. The development time of C. capitata was determined, and the oviposition behavior of C. capitata and A. fraterculus was examined. Three fruit maturity stages of intact (n = 1,320) and punctured (n = 1,320) granadilla fruits were examined. Adult C. capitata (n = 4,418) and A. fraterculus (n = 2,484) were trapped in the orchards, and commercial granadilla fruits (n = 1,940) sampled and dissected. Fruit fly infestation was not found in any intact granadilla fruits. Larvae and pupae were found inside punctured granadilla only in fruits broken after 20 d, and adults only emerged when those pupae were removed from the fruit. Ceratitis capitata development time was longer in punctured granadilla than that in host fruit. In the oviposition test, A. fraterculus and C. capitata did not lay eggs in intact granadilla, and C. capitata laid eggs in punctured fruits but larvae were not found. Because of the resistance mechanisms of the pericarp, commercial fruits of Passiflora ligularis are not a natural host of C. capitata and A. fraterculus in Peru.
在秘鲁，确定了甜百香果（Passiflora ligularis Juss.）对桔小实蝇（Ceratitis capitata Wiedemann）和南美番荔枝实蝇（Anastrepha fraterculus Wiedemann）的寄主地位。在秘鲁帕斯科（Pasco）的四个不同果园进行了为期两年（2016 年和 2017 年）的实验，每年两个果园。在田间条件下使用套管进行了选择（百香果加天然寄主）和非选择觅食行为试验，并在实验室笼中进行了强制感染试验，每个果实有 5 只雌性。测定了桔小实蝇的发育时间，并观察了桔小实蝇和南美番荔枝实蝇的产卵行为。检查了完整（n = 1,320）和穿孔（n = 1,320）百香果果实的三个成熟阶段。在果园中捕获了成年桔小实蝇（n = 4,418）和南美番荔枝实蝇（n = 2,484），并对商业百香果果实（n = 1,940）进行了取样和解剖。在任何完整的百香果果实中都没有发现实蝇幼虫。只有在穿孔百香果果实破裂 20 天后，才发现幼虫和蛹，只有当这些蛹从果实中取出时，成虫才会出现。在穿孔百香果中，桔小实蝇的发育时间比在寄主果实中更长。在产卵试验中，A. fraterculus 和 C. capitata 不在完整的百香果中产卵，C. capitata 在穿孔的果实中产卵，但未发现幼虫。由于果皮的抗虫机制，秘鲁商业百香果不是桔小实蝇和南美番荔枝实蝇的天然寄主。
