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Type:	Artigo de Periódico
Title:	Quantifying the harmful potential of ten essential oils on immature Trichogramma pretiosum stages
Authors:	Douglas Silva Parreira Ricardo Alcántara-de la Cruz Germano Leão Demolin Leite Francisco de Souza Ramalho José Cola Zanuncio José Eduardo Serrão
Abstract:	The use of chemical insecticides and non-selective natural products authorized for use in organic farming may reduce the effectiveness of egg parasitoids. The side-effects of ten plant essential oils on immature stages of Trichogramma pretiosum were evaluated. Carapa guianensis, Origanum vulgare and Zingiber officinalle during the F1 generation, and Azadirachtin and Mentha piperita in the F2 generation were slightly harmful (class II: 30–79%) to the emergence of this parasitoid. All essential oils affected the longevity of females of the F1 and F2 generations. Thymus vulgaris and Z. officinalle were the oils most harmful to female longevity. Carapa guianensis proved slightly harmful (class II: 30–79%) to parasitism in the F1 generation when applied during the egg-larval and pre-pupal stages and O. vulgare in the F1 generation in the pre-pupal stage alone, of this parasitoid. The sex ratio was lower than 0.5 during the pre-pupal stage of the F1 generation with Azadirachtin, C. guianensis, O. vulgare, Piper nigrum and Syzigium aromaticum, but this parameter was not affected for the other biological stages of T. pretiosum in the F1 and F2 generations. The Azadirachtin, C. guianensis, M. piperita, O. vulgare, T. vulgaris and Z. officinalle oils revealed a mild toxic effect to the immature stages of T. pretiosum and, therefore, it should be used according to patterns of ecological selectivity. Allium sativum and Citrus sinensis essential oils were not harmful to T. pretiosum, and can be used in Integrated Pest Management.
Subject:	Parasitóides Pragas agrícolas - Controle biológico Essências e óleos essenciais
language:	eng
metadata.dc.publisher.country:	Brasil
Publisher:	Universidade Federal de Minas Gerais
Publisher Initials:	UFMG
metadata.dc.publisher.department:	ICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
Rights:	Acesso Restrito
metadata.dc.identifier.doi:	https://doi.org/10.1016/j.chemosphere.2018.02.083
URI:	http://hdl.handle.net/1843/48877
Issue Date:	May-2018
metadata.dc.url.externa:	https://www.sciencedirect.com/science/article/pii/S0045653518302856
metadata.dc.relation.ispartof:	Chemosphere
Appears in Collections:	Artigo de Periódico

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