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. 2013 Apr 23;2:181. doi: 10.1186/2193-1801-2-181

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© Vidart et al.; licensee Springer. 2013

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Grapevine phylloxera leaf-gall infestation levels in Cabernet Sauvignon. (A C E) Juanicó, (B D F) Progreso, (A B) 2004-2005, (C D) 2005-2006, (E F) 2006-2007. Degree days are shown in the secondary X axis. Numbers of galls containing live insects (grey background), eggs (white bars), and nymphs (red bars) are indicated.