Definition of red rot
1
: a common sundew (Drosera rotundifolia)
2 a
: either of two diseases of sugarcane:
(1)
: a destructive disease caused by a fungus (Physalospora tucumanensis) characterized by red patches within the canes and found also on sorgo
(2)
: a rot of the leaf sheaths caused by a fungus (Sclerotium rolfsii)
b
: a wood decay of various conifers and deciduous trees caused by various pore fungi — called also
red heart
c
: adustiosis
