Bacterial wilt of potato

This disease occurs in scattered plants or groups of plants. The initial symptom is wilting of terminal leaves, followed in 2-3 days by a sudden and permanent wilt. Adventitious roots may develop on the main stems. Additional symptoms include vascular browning, water soaking of pith followed by browning, and in later stages browning of cortex near the soil line. Bacteria streaming can be seen when a freshly cut stem is suspended in water.

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Presence among species

AgentsSusceptible host
Ralstonia solanacearumSolanum tuberosum (Pythozome V13)
Ralstonia solanacearumSolanum lycopersicum (Pythozome V13)