Data/hora: 10/06/2024 06:31:17

Provedor de dados: 	63	
País: 	Brazil	
Título: 	Camouflaging of seeds treated with pesticides mitigates the mortality of wild birds in wheat and rice crops	
Autores: 	Almeida,Alexandre de; Couto,Hilton Thadeu Zarate do; Almeida,Álvaro Fernando de.	
Data: 	2010-04-01	
Ano: 	2010	
Palavras-chave: 	Zenaida auriculata; Carbofuran; Rhodamine B; Carbosulfan; Gustatory repellents; Environmental impact.	
Resumo: 	Seeds used to plant wheat, corn and rice crops in Brazil are treated with the insecticide carbofuran associated with the dye rhodamine B, attracting granivorous birds and causing mortality during sowing. The objective of this study was to evaluate if using camouflaged seeds can minimize mortality caused by the ingestion of seeds with carbofuran. Alternatives for reducing mortality, such as using carbofuran without rhodamine B or replacing carbofuran by carbosulfan, were compared. Three experiments were carried out in regions of known bird mortality in the states of Paraná and São Paulo, Brazil, using conventional sowing over plowed soil in the traditional planting system, 15,896 kg of seeds in 111.46 ha. Bird carcasses were collected and dissected to unveil which poisoned seed treatments had caused birds' deaths. The mortality mounted to 296 birds of 11 species. Eared doves were the most numerous casualties (263). There was significant correlation between mortality and number of consumed seeds. The consumption of camouflaged seeds was lower than that of commercial seeds treated with rhodamine B. The mortality caused by seeds with both rhodamine B and carbofuran was higher than mortality caused by seeds camouflaged only with carbofuran. The replacement of carbofuran with carbosulfan also seemingly reduced mortality, but carbosulfan mortality might have been underestimated as a result of the apparent movement of affected birds after exposure. Seeds treated with carbofuran and rhodamine B and without any dye, were attractive. Because legal requirement for seeds treated with pesticides to be differentiated by dying, the substitution of rhodamine B by camouflaging must be encouraged.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000200008	
Editor: 	São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"	
Relação: 	10.1590/S0103-90162010000200008	
Formato: 	text/html	
Fonte: 	Scientia Agricola  v.67 n.2 2010	
Fonte: 	info:eu-repo/semantics/openAccess