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Please read BHL's Acknowledgment of Harmful Content
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  1. By: United States. Department of Agriculture.
    Publication info: [Washington, D.C.], U.S. Dept. of Agriculture, 1991
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Biological control  Hypera postica  life cycle (organisms)  Medicago sativa  Microctonus  Parasites  United States  
  1. By: Rivas-Robles, E - Martínez-Corral, L - Frías-Ramírez, J - Orozco- Vidal, J - Fortis-Hernández, M - Segura Castruita, MA
    Type: Article
    In: Phyton (Buenos Aires)
    Date: 2011-12-01
    Subjects: Compactación  Desarrollo fenológico  Medicago sativa  Producción de forraje