Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.3/1357
Título: Effects of deltamethrin on the reproduction of Trichogramma cordubensis (Hymenoptera: Trichogrammatidae)
Autor: Garcia, Patrícia
Cabral, Susana
Oliveira, Luísa
Rodrigues, Armindo
Palavras-chave: Trichogramma
Offspring Emergence
Egg Maturation
Data: 2006
Editora: Taylor & Francis
Citação: "Biocontrol Science and Technology". ISSN 1360-0478. Volume 16, Issue 7, 2006, pp. 699-708(10).
Resumo: The influence of deltamethrin on the reproduction of Trichogramma cordubensis, a thelytokous egg parasitoid, was investigated by studying egg maturation and daily fecundity of insecticide treated wasps and offspring emergence rates. The insecticide was applied to the parasitoids at the prepupal stage within its host eggs (Ephestia kuehniella ). The total number of parasitized eggs per female during the first 7 days was not significantly influenced by the tested concentrations of deltamethrin. Prevalence of parasitism during this period had a similar pattern between deltamethrin treatments and the control. In addition, the mean number of mature eggs observed per female per day was significantly correlated to mean daily fecundity, regardless of the treatments. Offspring emergence was significantly influenced by the insecticide treatments experienced on their progenitors, decreasing significantly at 48 and 72 h for the highest tested concentration of deltamethrin (23.6 mg [a.i.]/L). Despite that, deltamethrin had no adverse effects on the reproduction of treated wasps, particularly when was applied at the concentration recommended by the manufacturer (12.5 mg [a.i.]/L).
Descrição: Copyright © 2006, Taylor & Francis.
Peer review: yes
URI: http://hdl.handle.net/10400.3/1357
ISSN: 0958-3157 (Print)
1360-0478 (Online)
Versão do Editor: http://dx.doi.org/10.1080/09583150600699911
Aparece nas colecções:DBIO - Artigos em Revistas Internacionais / Articles in International Journals

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