Ovipositional responses of tortricid moths to sugars, salts and neem oil

Abstract Oviposition is essential in the life history of insects and is mainly mediated by chemical and tactile cues present on the plant surface. Oviposition deterrents or stimulants can modify insect oviposition and be employed in pest control. Relatively few gustatory oviposition stimuli have bee...

Full description

Bibliographic Details
Main Authors: Carles Amat, Rajendra Prasad, César Gemeno
Format: Article
Language:English
Published: Nature Portfolio 2024-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-024-51972-1
_version_ 1797349952576290816
author Carles Amat
Rajendra Prasad
César Gemeno
author_facet Carles Amat
Rajendra Prasad
César Gemeno
author_sort Carles Amat
collection DOAJ
description Abstract Oviposition is essential in the life history of insects and is mainly mediated by chemical and tactile cues present on the plant surface. Oviposition deterrents or stimulants can modify insect oviposition and be employed in pest control. Relatively few gustatory oviposition stimuli have been described for tortricid moths. In this study the effect of NaCl, KCl, sucrose, fructose and neem oil on the number of eggs laid by Cydia pomonella (L.), Grapholita molesta (Busck) and Lobesia botrana (Dennis & Schifermüller) was tested in laboratory arenas containing filter papers loaded with 3 doses of a given stimulus and solvent control. In general, salts increased oviposition at the mid dose (102 M) and sugars reduced it at the highest dose (103 mM), but these effects depended on the species. Neem oil dramatically reduced the number of eggs laid as the dose increased, but the lowest neem oil dose (0.1% v/v) increased L. botrana oviposition relative to solvent control. Our study shows that ubiquitous plant chemicals modify tortricid moth oviposition under laboratory conditions, and that neem oil is a strong oviposition deterrent. The oviposition arena developed in this study is a convenient tool to test the effect of tastants on the oviposition behavior of tortricid moths.
first_indexed 2024-03-08T12:37:48Z
format Article
id doaj.art-c7a04231c6eb48eba82cf35d06fb76dd
institution Directory Open Access Journal
issn 2045-2322
language English
last_indexed 2024-03-08T12:37:48Z
publishDate 2024-01-01
publisher Nature Portfolio
record_format Article
series Scientific Reports
spelling doaj.art-c7a04231c6eb48eba82cf35d06fb76dd2024-01-21T12:22:42ZengNature PortfolioScientific Reports2045-23222024-01-011411910.1038/s41598-024-51972-1Ovipositional responses of tortricid moths to sugars, salts and neem oilCarles Amat0Rajendra Prasad1César Gemeno2University of Lleida-Agrotecnio-CERCA CenterUniversity of Lleida-Agrotecnio-CERCA CenterUniversity of Lleida-Agrotecnio-CERCA CenterAbstract Oviposition is essential in the life history of insects and is mainly mediated by chemical and tactile cues present on the plant surface. Oviposition deterrents or stimulants can modify insect oviposition and be employed in pest control. Relatively few gustatory oviposition stimuli have been described for tortricid moths. In this study the effect of NaCl, KCl, sucrose, fructose and neem oil on the number of eggs laid by Cydia pomonella (L.), Grapholita molesta (Busck) and Lobesia botrana (Dennis & Schifermüller) was tested in laboratory arenas containing filter papers loaded with 3 doses of a given stimulus and solvent control. In general, salts increased oviposition at the mid dose (102 M) and sugars reduced it at the highest dose (103 mM), but these effects depended on the species. Neem oil dramatically reduced the number of eggs laid as the dose increased, but the lowest neem oil dose (0.1% v/v) increased L. botrana oviposition relative to solvent control. Our study shows that ubiquitous plant chemicals modify tortricid moth oviposition under laboratory conditions, and that neem oil is a strong oviposition deterrent. The oviposition arena developed in this study is a convenient tool to test the effect of tastants on the oviposition behavior of tortricid moths.https://doi.org/10.1038/s41598-024-51972-1
spellingShingle Carles Amat
Rajendra Prasad
César Gemeno
Ovipositional responses of tortricid moths to sugars, salts and neem oil
Scientific Reports
title Ovipositional responses of tortricid moths to sugars, salts and neem oil
title_full Ovipositional responses of tortricid moths to sugars, salts and neem oil
title_fullStr Ovipositional responses of tortricid moths to sugars, salts and neem oil
title_full_unstemmed Ovipositional responses of tortricid moths to sugars, salts and neem oil
title_short Ovipositional responses of tortricid moths to sugars, salts and neem oil
title_sort ovipositional responses of tortricid moths to sugars salts and neem oil
url https://doi.org/10.1038/s41598-024-51972-1
work_keys_str_mv AT carlesamat ovipositionalresponsesoftortricidmothstosugarssaltsandneemoil
AT rajendraprasad ovipositionalresponsesoftortricidmothstosugarssaltsandneemoil
AT cesargemeno ovipositionalresponsesoftortricidmothstosugarssaltsandneemoil