Fire blight

fire blight
fire blight

CLASSIFICATION

Bacteria, Gammaproteobacteria, Erwiniaceae, Erwinia

ABOUT

Fire blight is a bacterial disease caused by Erwinia amylovora. It typically affects trees and shrubs leading to a burnt appearance.

How to treat?

  • microscopeBiological

    • If possible remove and destroy the infected parts of the plant. Remove an additional 60 cm of healthy tissue surrounding the damage and burn it.

    • If the infection is widespread, remove and destroy the infected plant. Burn it or toss it into the garbage. Do not compost.

  • pillChemical

    • If necessary, apply copper spray as a bactericide. It will reduce the spreading of bacteria.

    • If necessary, apply bactericide containing streptomycin (GHS08: Health hazard). It will reduce the spreading of bacteria.

  • syringeDisease prevention

    • Keep the moisture low, avoid prolonged wetting of the leaves (e.g. by overhead irrigation) and ensure good soil drainage.

    • Use resistant species and cultivars as well as healthy, certified seeds and seedlings.

    • Disinfect tools, infected flower pots, and hands to avoid disease transmission.

    • Avoid excess nitrogen fertilization. It would promote rapid growth and make the plant more susceptible to infection.

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