Toxicitat d'algunes sílices amorfes precipitades per a "Sitophilus zeamais" Motschulsky (Coleoptera, Curculionidae) Authors Ignacio Ribera Joan Isart Sabi José J. Llerena Abstract We have studied the effect of several precipitated amorphous silicas, alone or with attractants (honey) or preservatives (propionic acid), against Sitophilus zeamais Motschulsky, 1855 reared in common white rice for domestic use. Doses of 0.5, 0.74 and 1 kg/t, have been tested, comparing them with a commercial insecticide made of diatomaceous earth and an invert sugar (an attractant). Although being a preliminary assay, it seems that one of the silicas tested has a greater effectivity of the silica in the highest dose tested, and the insecticidal effect depends on the general state, the age of the adults and the conditions in which they have been reared. Results also seem to indicate that the action mechanism of the silicas is not exclusively contact. No clear effect has been detected on the larval development of the insects. Downloads Download data is not yet available. Downloads Text complet (Català) Published 2005-12-19 Issue No. 15: novembre 1992 Section Articles License The intellectual property of articles belongs to the respective authors. On submitting articles for publication to the journal QUADERNS AGRARIS, authors accept the following terms: Authors assign to ICEA (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to QUADERNS AGRARIS.Authors answer to ICEA for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.ICEA declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at http://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.The journal QUADERNS AGRARIS is not responsible for the ideas and opinions expressed by the authors of the published articles.
