Bacterial stalk rot — Maize

Dickeya zeae

Bacterial stalk rot

Symptoms

The base of the stalk becomes dark and water-soaked. Internal tissues soften and decompose rapidly. Infected plants may lodge and die shortly after tasseling. Decomposition produces a characteristic unpleasant odour. Disease progression can be rapid under hot, humid conditions.

Recommendations

Kasugamycin 3% (SL)

Use in combination with Copper oxy chloride for better results. Drenching basal stem and root zone of the affected plant and the surrounding plants in the affectd area. Avoid water stagnation which aggrevates the problem. Avoid sprinkler irrigation during hot weather which makes conditions favourable for the bacteria.