Top Rot
Fusarium moniliforme Sheldon
Symptoms: The panicle and immature leaves often remain
in the whorl, where they become rotted and covered with a mass
of white mycelium. Nodes will frequently be discolored.
Pathogen and disease characteristics: Microconidia are
abundant, primarily single celled, and formed in long chains and
in false heads (Nelson et al. 1983).
Host range: Numerous Gramineae. "Top rot"
symptoms can occur on pearl millet, sugarcane, and sorghum.
Geographic distribution: On pearl millet, only the United
States and India. On sugarcane, Australia, India, continental
United States, Hawaii (Ramakrishnan 1941).
Nomenclature discrepancies: Alternative disease names:
Twisted top, pokkah boeng, pokkah bong (name for disease on sugarcane).
Seed transmission: F. moniliforme is frequently
isolated from seed (see table 4).
Primary citation: Wells 1956.
United States
Department of Agriculture
Agricultural
Research Service
The material on this page is in the public
domain.
Original posting: June 5, 1999.
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