Data/hora: 10/06/2024 13:53:54

Biblioteca(s): 	Embrapa Milho e Sorgo.	
Data corrente: 	13/01/2014	
Data da última atualização: 	02/06/2017	
Autoria: 	TAVARES, W. de S.; GRAZZIOTTI, G. H.; SOUZA JÚNIOR, A. A. de; FREITAS, S. de S.; CONSOLARO, H. N.; RIBEIRO, P. E. de A.; ZANUNCIO, J. C.	
Afiliação: 	PAULO EDUARDO DE AQUINO RIBEIRO, CNPMS.	
Título: 	Screening of extracts of leaves and stems of Psychotria spp. (Rubiaceae) against Sitophilus zeamais (Coleoptera: curculionidae) and Spodoptera frugiperda (Lepidoptera: noctuidae) for maize protection.	
Ano de publicação: 	2013	
Fonte/Imprenta: 	Journal of Food Protection, Ames, v. 76, n. 11, p. 1892-1901, 2013.	
DOI: 	10.4315/0362-028X.JFP-13-123	
Idioma: 	Inglês	
Conteúdo: 	Sitophilus zeamais (Coleoptera: Curculionidae) and Spodoptera frugiperda (Lepidoptera: Noctuidae) are important economic pests of corn, Zea mays (Poaceae).Psychotria spp. (Rubiaceae) plants are rich in secondary metabolites that could be toxic against such pests. We have screened extracts from four species of Psychotria abundant in the Cerrado (Savannah-type) biome of Brazil for the toxicity to two insects. We found that extracts from leaves and stems had significant effects on the hatching rate, parameters of caterpillar body (weight and length and width of head capsule), repellency, and mortality of these two pests, although the effects varied according to the Psychotria species and plant source (stem or leaf). Extracts of the stems of Psychotria hoffmannseggiana and of Psychotria capitata were more toxic to S. zeamais and the stems of Psychotria goyazensis to S. frugiperda; therefore, such extracts could have the potential for use in integrated pest management schemes.	
Palavras-Chave: 	Manejo integrado de praga; Toxicidade.	
Thesagro: 	Inseto; Praga de planta; Toxidez; Zea mays.	
Thesaurus Nal: 	Integrated pest management; Plant pests; Toxicity.	
Categoria do assunto: 	O Insetos e Entomologia	
Registro original: 	Embrapa Milho e Sorgo (CNPMS)	
Exemplares: 	CNPMS - (25556-1) - UPC - AP - DD -  -  -  - DIS