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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 23, Number 1 (1972) → Pythium and nematode species implicated in root rot

Pythium and nematode species implicated in root rot

Sooner or later, forest nursery soils become infested with populations of pathogenic organisms that may drastically reduce the quantity and quality of the nursery stock that can be produced. Cultivation practicessuch as heavy fertilization and plentiful moisture-coupled with the close spacing of seedlings produce an abundance of fine, succulent roots on which pathogenic organisms thrive. These organisms attack the seedling roots, and they multiply in the soil with each succeeding crop until few plants escape damage. In the South and elsewhere, recent practices emphasizing fumigation at recurring intervals have not only controlled most root diseases but have also given good weed control (7, 12).


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Author(s): W. A. Campbell, F. F. Hendrix, Jr., W. M. Powell

Publication: Tree Planters' Notes - Volume 23, Number 1 (1972)

Volume: 23

Number: 1