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Red Rot

Red Rot

Glomerella tucumanensis


In a Nutshell

    Reddish lesions on leavesReddish brown stripes on nodal areaSour, alcoholic smellEntire ear can die and collapse

Hosts: %1$s

· Sorghum · Maize · Sugarcane


Symptoms can be found on nearly all plant parts. Reddish brown stripes appear on the nodal region of the stalk. On the leaves, reddish lesions can be found and the tissues emit an alcoholic smell. The leaves turn yellow and die. The entire ear can die and fall off.


The dissemination of the fungus takes place via wind, rain, dew and irrigation water. It can be transmitted from plant to plant or by harvest residues of infected plants. If the fungus is washed into the soil, it can also infect planted seeds. Spreading of the disease is promoted by low temperatures and high soil moisture as well as drought conditions.

Biological Control

Remove all infected plants and destroy all plant debris.

Chemical Control

Treating seeds with fungicides containing 2-Methoxyethyl Mercury Chloride before planting reduces risk of infection with Red Rot.

Preventive Measures

    Plant resistant varietiesImplement wide crop rotationAvoid overwateringEnsure good field hygiene - Burn or destroy all plant residues after harvest