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Rhizoctonia - Rhizoctonia spp.
  Clemson University,
USDA Cooperative Extension Slide Series, www.ipmimages.org HOSTS: Vegetables, flowers, woody
species.
DESCRIPTION: This
fungus causes damping-off-like symptoms on seedlings, root rots, and
above-ground stem cankers and fruit rots. LIFE
CYCLE: Rhizoctonia
persists in soil and in plant debris. It is persistent over very long
periods. Cool, moist soils favor this diseases; dry or waterlogged soil
discourage it. CONTROLS:Cultural: Wait to plant at optimum germination temperatures. Use plastic mulch to prevent fruit contact with soil. Use a 3-year rotation. Mineral: Spray with copper when humid, wet, and 75 – 85° F. Biological: Treat seed with Bacillus subtilis (Activate, Kodiak, System 3). |
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