Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00001695
11/12/99
Root Rots
Rhizoctonia, Pythium, Fusarium, Thielaviopsis and other
soil-inhabiting fungi frequently cause serious root rots,
particularly on herbaceous ornamental plants. Plants
affected by these fungi may come from the nursery already
infected with the fungus or may become infected after
transplanting.
Plants infected with these root rotting fungi may exhibit
many symptoms, including wilt and nutrient deficiencies.
Check small roots for rot by gently pulling them. If
roots are darkened and break easily, root rot may be the
problem.
Control: The primary control is to avoid the typical urban
stress problems, particularly over-watering and/or poorly
drained soils.
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This file was generated from data base ZZ on 01/19/00.
Data base ZZ was last revised on 11/12/99.
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