Data/hora: 19/06/2024 05:02:15

Biblioteca(s): 	Embrapa Milho e Sorgo.	
Data corrente: 	09/09/2002	
Data da última atualização: 	06/06/2018	
Autoria: 	FIGUEIREDO, M. de L. C.; DELLA LUCIA, T. M. C.; CRUZ, I.	
Afiliação: 	IVAN CRUZ, CNPMS.	
Título: 	Effect of Telenomus remus Nixon (Hymenoptera: scelionidae) density on control of Spodoptera frugiperda (Smith) (Lepidoptera: noctuidae) egg masses upon release in a maize field.	
Ano de publicação: 	2002	
Fonte/Imprenta: 	Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 1, n. 2, p. 12-19, maio/ago. 2002.	
Idioma: 	Inglês	
Conteúdo: 	The impact of releasing different densities (0, 6, 9 and 12 adult females m-2) of the egg parasitoid Telenomus remus Nixon on maize plants artificially infested with Spodoptera frugiperda (Smith) egg masses (one m-2) was evaluated. Egg masses were pinned in the mid-rib of the plant 36 days after planting. One egg mass contained approximately 65 eggs. The experimental design was in a randomized complete block design with five replications (16 m2 plots). There was a significant effect on percentage of parasitism egg masses. The highest parasitism values were verified in plots where 9 or 12 females of T. remus m-2 were released, respectively, 74 and 88.3 %. The relationship between percentage of parasitized egg masses and parasitoid densities was quadratic (Y = 16.8 + 9.98 X - 0.35 X2, r2 = 0.99). The natural occurrence of Trichogramma spp. was relatively constant over the egg masses fixed on maize plants (52.5%). However, the average T. remus parasitism on the eggs of a mass was much higher, representing 80.4% while the parasitism was only 21.3% in the case of Trichogramma. The presence of both parasitoids was responsible for up to 97.5% of parasitism, obtained from plots with a released density of 12 T. remus female m-2.	
Palavras-Chave: 	Fall armyworm; Lagarta-do-cartucho; Maize; Parasitoid; Parasitoide; Pest.	
Thesagro: 	Controle Biológico; Milho; Praga; Spodoptera Frugiperda; Zea Mays.	
Thesaurus Nal: 	biological control; Insecta.	
Categoria do assunto: 	H Saúde e Patologia	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/30716/1/Effect-telenomus.pdf	
Registro original: 	Embrapa Milho e Sorgo (CNPMS)	
Exemplares: 	CNPMS - (14120-1) - UPC - AP - DD -  -  -  - DIS