Oviposition Responses of Female Mediterranean Fruit Flies (Diptera: Tephritidae) to Fruit Volatile Compounds

The Mediterranean fruit fly, Ceratitis capitata (Wiedemann), is one of the most important pests of fruits worldwide. In the present study, we investigated the ovipositional response of C. capitata females to 37 compounds of fruit volatiles from various chemical groups and the dose response to five o...

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Bibliographic Details
Published in:Journal of economic entomology 2021-12, Vol.114 (6), p.2307-2314
Main Authors: Antonatos, Spyridon, Papadopoulos, Nikolaos T, Anastasaki, Eirini, Kimbaris, Athanasios, Papachristos, Dimitrios P
Format: Article
Language:English
Subjects:
aldehyde
Aldehydes
Animals
Ceratitis capitata
Citral
Citrus
Citrus fruits
dose response
ECOLOGY AND BEHAVIOR
Egg laying
ester
Esters
Ethyl hexanoate
Females
Fruit
Fruits
Hydrocarbons
Limonene
Linalool
Mediterranean fruit-fly
Monoterpenes
Monoterpenes - pharmacology
Oviposition
Pests
Sesquiterpenes
Tephritidae
terpene
Valencene
Volatiles
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Summary:The Mediterranean fruit fly, Ceratitis capitata (Wiedemann), is one of the most important pests of fruits worldwide. In the present study, we investigated the ovipositional response of C. capitata females to 37 compounds of fruit volatiles from various chemical groups and the dose response to five of them. Red plastic hollow hemispheres (domes) were used as oviposition substrates in all tests. Twenty of the compounds tested increased female egg laying compared to control substrates that contain no chemicals. With 16 compounds, similar number of eggs was deposited in treated and in control oviposition substrates. One terpene ((±)-linalool) reduced egg laying indicating a deterrent ovipositional effect. Both the esters and aldehydes tested increased the ovipositional responses in C. capitata. Most of the monoterpene hydrocarbons increased oviposition, while oxygenated monoterpenes, sesquiterpenes hydrocarbons, and oxygenated sesquiterpenes had mostly neutral effect. Ethyl hexanoate and R-(+)-limonene increased oviposition in the majority of doses tested. Different doses of (–)-linalool elicited differential female ovipositional responses. In contrast, valencene and citral, regardless of dose did not affect female oviposition. Practical implications of these findings are discussed.
ISSN:0022-0493
1938-291X
DOI:10.1093/jee/toab178