Photo 2. Cankers on the stem of a papaya showing water-soaked margins caused by crown rot, Erwinia papayae.
Photo 3. Cankers on a papaya stem that have dried out, and no longer have water soaked margins, caused by crown rot, Erwinia papayae.
Photo 4. Young papaya tree showing wilt of leaves, and rots of petioles and loss of stem, caused by crown rot, Erwinia papayae.
Photo 9. Rot on an immature papaya fruit that has reached the seed cavity, caused by crown rot, Erwinia papayae.
Papaya bacterial crown rot, papaya bacterial decline, papaya bacterial stem canker
AUTHOR Grahame Jackson
Information (and Photos 1-10) from Threat specific contingency plan: Bacterial crown rot, Erwinia papayae (2011). Plant Health Australia; and from Fullerton RA et al. (2011) First record of bacterial crown rot of papaya (Carica papaya) caused by an Erwinia papayae-like bacterium in the Kingdom of Tonga. Plant Disease 95: 70.
Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.
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