Effect of host egg age on preference, development and arrestment of Telenomus remus (Hymenoptera: Scelionidae)

Title:

Effect of host egg age on preference, development and arrestment of Telenomus remus (Hymenoptera: Scelionidae)

Creator:

Penafor, Maria Fernanda Gomes Villalba, Sarmento, Mariana Montagne de Moraes, Bezerra da Silva, Cherre Sade, Werneburg, Andrea Graf, and Bento, José Maurício Simoes

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:b5b0895d-be18-45a4-9800-71eaeec5da08
uuid:b5b0895d-be18-45a4-9800-71eaeec5da08

Subject:

Zoologie, zoologie, entomologie, Hymenoptera, Scelionidae, Telenomus remus, egg parasitoid, Noctuidae, Spodoptera frugiperda, fall armyworm, host selection, egg age discrimination, behaviour, developmental biology, 2, and 59

Type:

article, články, model:article, and TEXT

Description:

Age of host eggs can be a limiting factor for egg parasitoids. It is expected that old eggs are less preferred by egg parasitoids, which can discriminate between eggs of different ages by using chemical cues. The objective of this study was to determine the preference, development and arrestment of Telenomus remus Nixon (Hymenoptera: Scelionidae) parasitizing Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) eggs of different ages. This egg parasitoid preferred to parasitize 1- and 2-day-old eggs rather than 3-day-old eggs in choice and no-choice assays. However, although the percentage emergence of parasitoids is significantly lower from 2- and 3-day-old eggs, the sex ratio and developmental time are unaffected. Parasitoids spent longer searching substrates impregnated with extracts of 1- and 2-day old eggs than 3-day-old eggs. Our results reveal that T. remus is able to distinguish the most suitable (1-day-old) from the least suitable (3-day-old) host eggs, but unable to recognize the unsuitability of intermediate aged eggs. Egg arrestants may be responsible for the preference of T. remus for ovipositing in 1- and 2-day old eggs., Maria Fernanda Gomes Villalba Penaflor ... [et al.]., and Obsahuje seznam literatury

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

European Journal of Entomology | 2012 Volume:109 | Number:1

Harvested from:

CDK

Metadata only:

false