Comparative efficacy of two fruit juice products as attractants for trapping   oriental fruit fly,   Bactrocera dorsalis (Diptera: Tephritidae)

Ugwu, Juliana Amaka; Ogunfumilayo, Akindele Oluwole

doi:10.52547/azarinj.041

Cited by 2 publications

(1 citation statement)

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“…These compounds could be further evaluated using gas chromatography-electroantennographic detection (GC-EAD) to find oviposition attractants or other behavior-modifying compounds. As a polyphagous insect, B. dorsalis is attracted to the volatiles of various host species [19,[40][41][42][43][44], including linalool and ethyl acetate [45,46]. Therefore, the behavior-modifying compounds from different host sources can be combined with a suitable ratio to enhance the attraction of B. dorsalis in the future.…”

Section: Discussionmentioning

confidence: 99%

D-Limonene Is the Active Olfactory Attractant in Orange Juice for Bactrocera dorsalis (Insecta: Diptera: Tephritidae)

Liu,

Yang,

Yuan

et al. 2024

Life

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The oriental fruit fly, Bactrocera dorsalis (Hendel), poses a significant threat to the global fruit industry, causing damage to diverse fruits like citrus, mango, and guava. Chemical pesticides have limited effectiveness, and pesticide residues and pesticide resistance are pressing issues. Therefore, it is essential to develop environmentally friendly pest control methods to address this problem. Behavior-modifying chemicals, including male attractants and intersex protein baits, play a critical role in the control of B. dorsalis. The mature host fruit serves as both an oviposition site and food source under natural conditions, making it a potential attraction source for oriental fruit flies. Orange, Citrus sinensis, is a main host of B. dorsalis, and commercial orange juice is a common attractant for the egg laying of B. dorsalis. Although it can both attract and elicit oviposition behaviors in B. dorsalis adults, its active components are still unclear. This study utilized analytical chemistry, behavioral tests, and electrophysiology to identify the active components of commercial orange juice that attract B. dorsalis, with the aim of providing a reference for the development of behavior-modifying chemical-based techniques to control B. dorsalis. Five compounds with a high abundance were identified via a GC-MS, including D-Limonene, butanoic acid ethyl ester, β-myrcene, linalool, and α-terpineol. Behavioral and electrophysiological experiments uncovered that D-Limonene was the active substance that was the main attractant in the mixture of these five substances, evoking a strong electrophysiological response in adult B. dorsalis. D-Limonene strongly attracts adult B. dorsalis only when they are sexually mature, and the attraction is not rhythmic. Olfaction plays a leading role in the attraction of D-Limonene to adult B. dorsalis, and Orco−/− mediates the perception of D-Limonene by B. dorsalis. Overall, D-Limonene is one of the key attractant compounds for B. dorsalis in the volatile compounds of commercial orange juice, offering possible support for the development of behavior-modifying chemical-based technology to control B. dorsalis in the future.

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Section: Discussionmentioning

confidence: 99%