Data/hora: 10/06/2024 06:43:59

Provedor de dados: 	65	
País: 	Brazil	
Título: 	Parasitism of Tuta absoluta in tomato plants by Trichogramma pretiosum Riley in response to host density and plant structures	
Autores: 	Faria,Cristina Arantes; Torres,Jorge Braz; Fernandes,Adriana Maria Vieira; Farias,Angela Maria Isidro.	
Data: 	2008-09-01	
Ano: 	2008	
Palavras-chave: 	Biological control; Density dependent parasitism; Tomato leafminer; Egg parasitoid.	
Resumo: 	One important factor determining the efficacy of parasitoids is the way they exploit different host patch. This study evaluated the response of females of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) to the oviposition sites of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) on processing tomato plants. In fully developed caged tomato plants T. absoluta moths were released, followed by the release of T. pretiosum females 12h later. After 24h of parasitoid release, the moth oviposition sites were mapped according to the plant canopy, and levels of parasitism assessed. The parasitism rate varied from 1.5 to 28%. There was not influence of plant structures on parasitism, except for the absence of parasitism on the plant apex. Levels of both T. absoluta oviposition and parasitism by T. pretiosum were higher on the upper third of the plant, decreasing downward along the plant canopy.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000600002	
Editor: 	Universidade Federal de Santa Maria	
Relação: 	10.1590/S0103-84782008000600002	
Formato: 	text/html	
Fonte: 	Ciência Rural  v.38 n.6 2008	
Fonte: 	info:eu-repo/semantics/openAccess