LIBROS DEL AUTOR: u s department of agirculture

2 resultados para LIBROS DEL AUTOR: u s department of agirculture

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  • Forest Nursery Pests (Agriculture Handbook No. 680)
    Forest Service / Michelle M. Cram / U.S. Department of Agirculture
    Illustrations in full color. Abstarct: 'The nursery manager has a basic knowledge of symptoms and a habit of careful observation and can usually diagnose most forest nursery pest problems. The first step in diagnosing a pest problem is recognizing that a problem exists. To do this, the manager must routinely monitor the nursery and learn what healthy seedlings look like under a...
    Disponible

    82,75 €

  • Forest Nursery Pests (Agriculture Handbook No. 680)
    Forest Service / Michelle M. Cram / U.S. Department of Agirculture
    Illustrations in full color. Abstarct: 'The nursery manager has a basic knowledge of symptoms and a habit of careful observation and can usually diagnose most forest nursery pest problems. The first step in diagnosing a pest problem is recognizing that a problem exists. To do this, the manager must routinely monitor the nursery and learn what healthy seedlings look like under a...
    Disponible

    50,79 €