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Agrociencia
versión On-line ISSN 2521-9766versión impresa ISSN 1405-3195
Agrociencia vol.40 no.2 Texcoco mar./abr. 2006
Plant Protection
Neem (Azadirachta indica) ethylic ether extracts on brown rice as feeding deterrent in the control of bronzed red-eyed cowbird (Molothrus aeneus)
1Centro Nacional de Referencia Fitosanitaria. Dirección General de Sanidad Vegetal. G. Pérez Valenzuela. Número 127. Colonia del Carmen. Delegación Coyoacán. 11000 México, D.F. (ar.plaga@senasica.sagarpa.gob.mx).
2Agroecosistemas Tropicales. Campus Veracruz. Apartado Postal 421. 91700, Veracruz, Veracruz (javj@colpos.mx).
3Facultad de Ciencias Biológicas, Universidad Autónoma del Estado de Morelos, Avenida 1001, Colonia Chamilpa. 62210, Cuernavaca, Morelos (cmbecerril129@hotmail.com).
Effectiveness of neem (Azadirachta indica) leaf and seed in deterring feeding of bronzed (red-eyed) cowbird (Molothrus aeneus) was determined under laboratory conditions. Brown rice grains were contaminated with ethylic ether extracts from dry neem leaves (0.0, 0.1, 0.2 and 0.4%). After evaporation of solvent, four groups of cowbirds were fed with these contaminated rice mixtures. Ethylic ether extracts of unpeeled neem seed (0.0, 0.05, 0.1 and 0.2%) were used in a second experiment. Cowbirds had lower (p≤0.05) consumption of rice contaminated with 0.1 and 0.2% neem leaf extracts and 0.2% neem seed extract, with a repellency effectiveness of 15.42, 17.16 and 19.91%, respectively.
Key words: Feeding; bird pests; behavior
Se determinó la efectividad en laboratorio de la hoja y semilla del nim (Azadirachta indica) como repelente de la alimentación para el tordo ojirrojo (Molothrus aeneus). Se contaminó arroz palay con extractos de éter etílico de hojas secas de nim (0.0, 0.1, 0.2, y 0.4%). Después de la evaporación del solvente, cuatro grupos de tordos fueron alimentados con las mezclas de arroz contaminado. En un segundo experimento se usaron extractos de éter etílico de semillas de nim sin escarificar (0.0, 0.05, 0.1 y 0.2%). Las aves presentaron menor (p≤0.05) consumo de arroz contaminado con extractos de hoja de nim 0.1 y 0.2%, y con extractos de semilla de nim 0.2%, con efectividades de 15.42, 17.16 y 19.91%.
Palabras clave: Alimentación; aves; comportamiento
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Received: February 2004; Accepted: August 2005
Este es un artículo publicado en acceso abierto bajo una licencia Creative Commons
